Regulations for Hazardous Chemical Agents, 2020


South Africa
Occupational Health and Safety Act, 1993

Regulations for Hazardous Chemical Agents, 2020

Government Notice R280 of 2021

  • Published in Government Gazette no. 44348 on 29 March 2021
  • Assented to on 3 March 2021
  • There are multiple commencements:
  • Provisions Status
    Section 1–13, section 15–18 commenced on 29 March 2021.
    Note: See section 18(2)
    Section 14–14D commenced on 29 September 2022.
    Note: See section 18(2)
  • [This is the version of this document from 29 March 2021.]
[Please Note: These regulations were corrected by Government Notice R283 of 2021.]The Minister of Employment and Labour has, under section 43 of the Occupational Health and Safety Act, 1993 (Act No. 85 of 1993), after consultation with the Advisory Council for Occupational Health and Safety, made the regulations in the Schedule.Mr TW Nxesi, MPMinister of Employment and Labour

1. Definitions

In these regulations any word or expression to which a meaning has been assigned in the Act shall have the meaning so assigned and, unless the context otherwise indicates–"air monitoring" means the monitoring of the concentrations of airborne hazardous chemical agents;"Asbestos Abatement Regulations" means the Asbestos Abatement Regulations, 2020, published as Government Notice No. R11196 of 10 November 2020 under section 43(1) of the Act;"assessment" means a programme to determine any risk from exposure to an HCA associated with the workplace in order to identify the steps needed to be taken to remove, reduce or control such HCA;"BEI" or "biological exposure index" is a value for assessing biological monitoring results, intended as a reference guideline for the likelihood of adverse health effects, and generally represents the level of determinants that are most likely to be observed in specimens collected from healthy employees who have been exposed to HCAs with inhalation exposure at the occupational exposure limit, as listed in Table 4 of Annexure 2 hereby, as revised from time to time and published in the Gazette;"carcinogen" or "CARC" means any chemical agent or mixture which induces cancer or increases its incidence, classified by the GHS as–
(a)Category 1: known or presumed human carcinogens; or
(b)Category 2: suspected human carcinogens;
"CAS number" or "chemical identity" means the number or name, respectively, that uniquely identifies a chemical, given in accordance with the nomenclature systems of the International Union of Pure and Applied Chemistry or the Chemical Abstracts Service, or a technical name;"chemical agent" means a GHS-aligned chemical agent or mixture;"chief director: provincial operations" means the provincial director as defined in regulation 1 of the General Administrative Regulations;"consumer product" means a product containing an HCA, which–
(a)is packed or repacked primarily for use by a household consumer or for use in an office;
(b)if the product is packed or repacked primarily for use by a household consumer, is packed in the way and quantity in which it is intended to be used by a household consumer; and
(c)if the product is packed or repacked primarily for use in an office, is packed in the way and quantity in which it is intended to be used for office work;
"container", in relation to an HCA, means anything in or by which an HCA is, or has been, wholly or partly covered, enclosed or packed, including anything necessary for the container to perform its function as a container;"cut-off value" or "GHS cut-off value" or "GHS concentration limit" means the minimum concentration of an HCA, expressed as a percentage, to trigger the classification of a mixture containing the HCA;"exposed" means exposed to an HCA whilst at the workplace and "exposure" has a corresponding meaning;"Facilities Regulations" means the Facilities Regulations, 2004, published as Government Notice No. R. 924 of 3 August 2004;"General Administrative Regulations" means the General Administrative Regulations, 2003, published as Government Notice No. R. 929 of 25 June 2003;"GHS hazard classification" means the GHS hazard classes and hazard categories assigned to HCAs;"hazard category" means a division of criteria within a hazard class in the GHS, where these hazard categories compare hazard severity within a hazard class and should not be taken as a comparison of hazard categories more generally;"hazard class" means the nature of a physical, health or environmental hazard under the GHS;"hazard pictogram" means a graphical composition, including a symbol plus other graphical elements such as a border, background pattern or colour that is intended to convey specific information, that is assigned in the GHS to a hazard class or hazard category;"hazard statement" means a statement assigned in the GHS to a hazard class or hazard category describing the nature of the hazards of an HCA including, if appropriate, the degree of hazard;"hazardous chemical agent" or "HCA" means a GHS-aligned chemical agent as provided for in Annexure 1;"HSG 173" means the Guidance Note HSG 173 of the Health and Safety Executive (HSE) of the United Kingdom: Monitoring Strategies for Toxic Substances, 2006, ISBN 978 0 7176 6188 6, as revised from time to time and published in the Gazette;"importer" means an employer or self-employed person who, by any means, imports an HCA into the Republic that is to be used, or could reasonably be expected to be used, at a workplace;"Lead Regulations" means the Lead Regulations, 2001, published as Government Notice No. R. 236 of 28 February 2002;"manufacturer" means an employer or self-employed person who manufactures an HCA that is to be used, or could reasonably be expected to be used, at a workplace;"measurement programme" means a programme according to the monitoring strategy as contemplated in HSG 173;"Minister" means the Minister of Employment and Labour;"monitoring" means the planning, carrying out, and recording of the results of a measurement programme;"OEL" or "occupational exposure limit" means a limit value set by the Minister, which represents the airborne concentration of an HCA, where the exposure standard may be–
(a)an eight-hour time-weighted average;
(b)a ceiling limit; or
(c)a short-term exposure limit;
"OEL ceiling limit" or "ceiling limit" or "C" means a maximum or peak airborne concentration of an HCA determined over the shortest analytically practicable period of time, which does not exceed 15 minutes;"OEL eight-hour time-weighted average" or "TWA" means the maximum average airborne concentration of an HCA when calculated over an eight-hour working day, for a five-day working week;"OEL-ML" or "occupational exposure limit - maximum limit" means an HCA as listed in Table 2 of Annexure 2;"OEL-RL" or "occupational exposure limit - restricted limit" means an HCA as listed in Table 3 of Annexure 2;"OEL-short-term exposure limit" or "STEL" means the time-weighted average maximum airborne concentration of an HCA calculated over a 15-minute period;"OESSM" means the Occupational Exposure Sampling Strategy Manual, published by the National Institute for Occupational Safety and Health (NIOSH), Publication No. 77-173 of 1977, United States of America: Department of Health, Education and Welfare;"permanent respirator zone" means an area where the concentration of an airborne HCA during normal operations exceeds the OEL-RL for that HCA;"precautionary statement" means a phrase prescribed by the GHS that describes recommended measures that should be taken to minimise or prevent–
(a)the adverse effects resulting from exposure to an HCA; or
(b)the improper storage or handling of an HCA;
"prohibited agent" means an HCA prohibited by the Minister and listed in Table 1 of Annexure 2, where the agents prohibited may be revised from time to time by notice in the Gazette;"respiratory protective equipment" means a device that is worn over at least the mouth and nose to prevent the inhalation of an airborne HCA and that is of a type, or conforms to a standard, approved by the Minister;"respirator zone" means an area where the concentration of an airborne HCA exceeds the recommended limit for that agent;"retailer" means an employer or self-employed person who supplies consumer products containing an HCA to members of the public who are not primarily engaged in the further supply of those products;"safety data sheet" or "SDS" means a document that is aligned to the GHS, providing information on hazard classification, properties of hazardous chemicals, procedures for handling or working with hazardous chemicals in a safe manner, and the effects of hazardous chemicals on health and safety at the workplace, and that is prepared in accordance with regulation 14A;"sensitiser" means an HCA that causes a substantial proportion of exposed people to develop an allergic reaction in normal tissue after repeated exposure, and includes dermal sensitisers and respiratory sensitisers;"signal word" means the word "danger" or "warning" used on a GHS-aligned label to indicate to the reader a potential hazard, as well as the relative severity level of such hazard;"skin", the notation, means that the HCA might be absorbed in toxicologically significant amounts through direct contact with skin or mucous membranes and eyes from airborne exposure to gases, vapours or liquids, so that conclusions about exposure and health effects based solely on airborne concentration limits may be incomplete;"supplier" means an employer or self-employed person who conducts a business or undertaking of supplying an HCA, also to a retailer;"the Act" means the Occupational Health and Safety Act, 1993 (Act No. 85 of 1993);"UN Globally Harmonized System" or "GHS" means the Globally Harmonized System of classification and labelling of chemicals, a guidance document developed by the United Nations for standardising and harmonising the classification and labelling of chemicals globally, as may be updated from time to time, commonly known as the UN Purple Book;"UN IMO International Maritime Dangerous Goods Code" means the International Maritime Organization's (IMO's) International Maritime Dangerous Goods (IMDG) Code, which was developed as an international code by the IMO, an agency of the United Nations, for the maritime transport of dangerous goods in packaged and bulk form, with particular reference to the segregation of incompatible substances, as may be updated from time to time;"UN number" means the four-digit identification number assigned to an HCA in the UN Transport of Dangerous Goods: Model Regulations, as may be updated from time to time;"UN proper shipping name" means the proper shipping name of an HCA as specified in the UN Transport of Dangerous Goods: Model Regulations, most accurately describing the goods, as may be updated from time to time;"UN Transport of Dangerous Goods" means the UN Recommendations on the Transport of Dangerous Goods: Model Regulations, Volumes 1 and 2, which are guidance documents developed by the United Nations to harmonise dangerous goods transport regulations, as may be updated from time to time, commonly known as the UN Orange Book.

2. Scope of application

(1)Subject to the provisions of subregulation (2), these regulations apply to–
(a)an employer or a self-employed person who carries out work at a workplace which may expose any person to an HCA at the workplace; and
(b)a manufacturer, importer, supplier or retailer of an HCA that is intended for use at a workplace.
(2)The provisions of regulations 3(1), 6 and 7 do not apply to–
(a)a self-employed person; or
(b)a person who visits a workplace referred to in subregulation (1).
(3)The provisions of these regulations do not apply in the case where the Lead Regulations or Asbestos Abatement Regulations apply.

3. Information, instruction and training

(1)Every employer who undertakes work which is liable to expose an employee to an HCA must, before any employee is exposed or may be exposed, after consultation with the health and safety committee established for that section of the workplace, provide that employee with suitable and sufficient information, instruction and training, as well as thereafter inform, instruct and train that employee at intervals as may be recommended by that health and safety committee.
(2)The information, instruction and training contemplated in subregulation (1) must include–
(a)in regard to these regulations for HCAs–
(i)the chemical substance regulations that are in place that govern all aspects of HCA use at the workplace;
(ii)the legislated OELs that are in place; and
(iii)the duties of persons who are likely to be exposed to an HCA, as contemplated in regulation 4;
(b)details of the HCAs to which the employee is likely to be exposed at the workplace, including–
(i)the names of the HCAs and where they may be found in the workplace;
(ii)information on the potential harmfulness of the HCAs at the workplace; and
(iii)significant findings of the HCA exposure assessment, as required by regulation 5(2);
(c)information on how to access the relevant SDSs;
(d)the information that each part of an SDS provides;
(e)the information that each part of the label on containers provides and why the information is being provided;
(f)the work practices and procedures that must be followed for the use, handling, storage, transportation, spillage and disposal of an HCA, in emergency situations, as well as for good housekeeping and personal hygiene;
(g)the necessity of personal air sampling, biological monitoring and medical surveillance;
(h)the need for engineering controls and how to use and maintain them;
(i)the need for personal protective equipment, including respiratory protective equipment, and its use and maintenance;
(j)the precautions that must be taken by an employee to protect themselves against health risks associated with exposure, including wearing and using protective clothing and respiratory protective equipment; and
(k)the necessity, correct use, maintenance and potential of safety equipment, facilities and engineering control measures provided.
(3)An employer must give written instructions of the procedures to be followed in the event of spillages, leakages or any similar emergency situations to the drivers of vehicles transporting an HCA.
(4)As contemplated in section 37(2) of the Act, the employer and mandatary must agree in writing to the arrangements and procedures between them to ensure compliance by the mandatary with information, instruction and training requirements specified in regulation 3.

4. Duties of persons who may be exposed to hazardous chemical agents

Every person who is or may be exposed to an HCA must obey a lawful instruction given by or on behalf of the employer or self-employed person regarding–
(a)HCA release prevention;
(b)the wearing of personal protective equipment;
(c)the wearing of monitoring equipment to measure personal exposure;
(d)reporting for health evaluations and biological tests as required by these regulations;
(e)the cleaning up and disposal of materials containing an HCA;
(f)housekeeping at the workplace, personal hygiene and environmental and health practices; and
(g)information, instruction and training as contemplated in regulation 3.

5. Assessment of exposure

(1)An employer or self-employed person must, after consultation with the relevant health and safety representative or relevant health and safety committee, cause an assessment to be made immediately, and thereafter at intervals not exceeding two years, to determine if any employee may be exposed by any route of intake.
(2)The employer must inform the relevant health and safety representative or relevant health and safety committee in writing of arrangements made for the assessment contemplated in subregulation (1), give them reasonable time to comment thereon, and ensure that the results of the assessment are made available to the relevant representative or committee who may comment thereon.
(3)When making the assessment, the employer or self-employed person must keep a record of the assessment and take into account such matters as–
(a)the HCA to which an employee may be exposed;
(b)the effects the HCA may have on an employee;
(c)where the HCA may be present, and the physical form in which it is likely to exist;
(d)the route of intake by which, and the extent to which, an employee may be exposed; and
(e)the nature of the work process, and any reasonable deterioration in, or failure of, control measures.
(4)If the assessment made in accordance with subregulation (3) indicates that any employee may be exposed, the employer must ensure that monitoring is carried out in accordance with the provisions of regulations 6 and 7, and that the exposure is controlled as contemplated in regulation 10.
(5)An employer or self-employed person must immediately review the assessment required by subregulation (1) if–
(a)there is reason to suspect that the previous assessment is no longer valid; or
(b)there has been a change in a process involving an HCA or in the methods, equipment or procedures for the use, handling, control or processing of the HCA,
and the provisions of subregulations (2) and (3) will apply.

6. Air monitoring

(1)Where the inhalation of an HCA is concerned, an employer contemplated in regulation 5(4) must ensure that the measurement programme of the airborne concentrations of the HCA to which an employee is exposed, is–
(a)carried out in accordance with the provisions of these regulations;
(b)carried out only after the relevant health and safety representative or relevant health and safety committee has been informed thereof and given a reasonable opportunity to comment thereon;
(c)carried out by an approved inspection authority; and
(d)representative of the exposure of an employee to the airborne HCA in accordance with the provisions of subregulation (2).
(2)In order to comply with the provisions of subregulation (1)(d), an employer must–
(a)ensure that the measurement programme, in the case of a group measurement, makes provision for the selection of the number of persons for a sample to be done as contemplated in Chapter 3 and 4 and Technical Appendix A of the OESSM: Provided that such sample size must be chosen for the top 10% of the group at the 95% confidence level for an HCA with a control limit, and for the top 10% of the group at the 90% confidence level for an HCA with a recommended limit; and
(b)subject to the criteria contained in regulation 6(1), carry out representative measurements at least every 24 months for an HCA with an OEL-ML or an OEL-RL as listed in Table 2 or 3 of Annexure 2.

7. Medical surveillance

(1)An employer must ensure that an employee is under medical surveillance if–
(a)the employee may be exposed to an HCA listed in Table 4 of Annexure 2;
(b)the exposure of the employee to any chemical agent hazardous to his or her health is such that an identifiable disease or adverse effect to his or her health may be related to the exposure, there is a reasonable likelihood that the disease or effect may occur under the particular conditions of his or her work, and there are techniques to diagnose indications of the disease or the effect as far as is reasonably practicable; or
(c)the occupational health practitioner recommends that the relevant employee should be under medical surveillance, in which case the employer may call on an occupational medicine practitioner to ratify the appropriateness of such recommendation.
(2)In order to comply with the provisions of subregulation (1), the employer must, as far as is reasonably practicable, ensure–
(a)that an initial health evaluation is carried out by an occupational health practitioner immediately before or within 14 days after a person commences employment, where any exposure exists or may exist, which comprises–
(i)an evaluation of the employee’s medical and occupational history;
(ii)a physical examination; and
(iii)any other essential examination which, in the opinion of the occupational health practitioner, is desirable in order to enable the practitioner to do a proper evaluation;
(b)that, subsequent to the initial health evaluation contemplated in paragraph (a), the relevant employee undergoes examinations as contemplated in paragraph (a)(ii) and (iii), at intervals not exceeding two years or at intervals specified by an occupational medicine practitioner.
(3)An employer may not permit an employee, who has been certified unfit for work by an occupational medicine practitioner, to work in a workplace or part of a workplace in which he or she would be exposed: Provided that the relevant employee may be permitted to return to work which will expose him or her, if he or she is certified fit for that work beforehand by an occupational medicine practitioner.
(4)The employer must record and investigate the incident contemplated in subregulation (3) in compliance with regulation 8 of the General Administrative Regulations.

8. Respirator zone

An employer must ensure–
(a)that any workplace or part thereof under his or her control, where the concentration of an HCA in the air is or may be such that the exposure of an employee working in that workplace exceeds the restricted limit without the wearing of respiratory protective equipment, is zoned as a respirator zone;
(b)that a respirator zone is clearly demarcated and identified by a notice indicating that the relevant area is a respirator zone and that personal protective equipment as contemplated in regulation must be worn there; and
(c)that no person enters or remains in a permanent respirator zone unless he or she is wearing the required personal protective equipment.

9. Records

An employer must–
(a)keep records of the results of all assessments, air monitoring, and medical surveillance reports required by regulations 5, 6 and 7, respectively: Provided that personal medical records may be made available to only an occupational health practitioner;
(b)subject to the provisions of paragraph (c), make the records contemplated in paragraph (a), excluding personal medical records, available for inspection by an inspector;
(c)allow any person, subject to the personal written consent of an employee, to peruse the records with respect to that particular employee;
(d)make the records of all assessments and air monitoring available for perusal by the relevant health and safety representative or relevant health and safety committee;
(e)keep all records of assessments and air monitoring for a minimum period of 30 years;
(f)if the employer ceases activities, hand over or forward all records by registered post to the relevant regional director; and
(g)keep, for at least three years, a record of the investigations and tests carried out in terms of regulation 12(b) and of any repairs resulting from these investigations and tests.

10. Control of exposure to hazardous chemical agents

(1)An employer must ensure that the exposure of an employee is either prevented or, where this is not reasonably practicable, adequately controlled: Provided that–
(a)where there is exposure for which there is a restricted limit, the control of the exposure must be regarded as adequate if the level of exposure is below that limit or if the relevant area is zoned and the level of exposure is reduced to below that restricted limit by means of adequate personal protective equipment only after the level has been reduced to as low as is reasonably practicable by any other means than personal protective equipment; or
(b)where there is exposure for which there is a maximum limit, the control of the exposure must be regarded as adequate if the exposure is at a level as low as is reasonably practicable below that maximum limit: Provided that in the case of temporary excursions above the control limit, the employer must ensure–
(i)that the excursion is without a significant risk from exposure;
(ii)that the excursion is not indicative of a failure to maintain adequate control;
(iii)that during the excursion, the area is temporarily demarcated and prescribed and identified as contemplated in regulation 8(b); and
(iv)that the provisions of regulation 11 are complied with.
(2)Where reasonably practicable, the employer must control the exposure of an employee by–
(a)limiting the amount of an HCA used, which may contaminate the working environment;
(b)limiting the number of employees who will be exposed or may be exposed;
(c)limiting the period during which an employee will be exposed or may be exposed;
(d)using a substitute for an HCA;
(e)introducing engineering control measures for the control of exposure, which may include–
(i)process separation, automation or enclosure;
(ii)the installation of local extraction ventilation systems to processes, equipment and tools for the control of emissions of an airborne HCA;
(iii)use of wet methods; and
(iv)separate workplaces for different processes; and
(f)introducing appropriate work procedures which an employee must follow where materials are used or processes are carried out which could give rise to exposure of an employee, and which procedures must include written instructions to ensure–
(i)that an HCA is safely handled, used and disposed of;
(ii)that process machinery, installations, equipment, tools and local extraction and general ventilation systems are safely used and maintained;
(iii)that machinery and work areas are kept clean; and
(iv)that early corrective action may be readily identified.
(3)An employer must ensure that the emission of an HCA into the atmosphere comply with the provisions of the National Environmental Management: Air Quality Act, 2004 (Act No. 39 of 2004).

11. Personal protective equipment and facilities

(1)If it is not reasonably practicable to ensure that the exposure of an employee is adequately controlled as contemplated in regulation 10, the employer must–
(a)in the case of an airborne HCA, provide the employee with suitable respiratory protective equipment and protective clothing; and
(b)in the case of an HCA which can be absorbed through the skin, provide the employee with suitable non-HCA impermeable protective equipment.
(2)Where respiratory protective equipment is provided, the employer must ensure–
(a)that the relevant equipment is capable of controlling the exposure to below the OEL for the relevant HCA;
(b)that the relevant equipment is correctly selected and properly used;
(c)that information, instructions, training and supervision, which is necessary with regard to the use of the equipment, is known to the employee; and
(d)that the equipment is kept in good condition and efficient working order.
(3)An employer must, as far as is reasonably practicable–
(a)not issue any used personal protective equipment to an employee, unless the relevant protection equipment is decontaminated and sterilised;
(b)provide separate containers or storage facilities for personal protective equipment when not in use; and
(c)ensure that all personal protective equipment not in use is stored in only the place provided therefor.
(4)An employer must, as far as is reasonably practicable, ensure that all contaminated personal protective equipment is cleaned and handled in accordance with the following procedures:
(a)Where personal protective equipment is cleaned on the premises of an employer, care must be taken to prevent contamination during handling, transport and cleaning;
(b)where personal protective equipment is sent off the premises to a contractor for cleaning purposes, the equipment must be packed in impermeable containers;
(c)the impermeable containers must be tightly sealed and must have a clear indication thereon that the contents thereof are contaminated; and
(d)the relevant contractor must be fully informed of the requirements of these regulations and of the precautions that must be taken for handling contaminated personal protective equipment.
(5)Subject to the provisions of subregulation (4)(b), an employer must ensure that no person removes dirty or contaminated personal protective equipment from the premises: Provided that where contaminated personal protective equipment has to be disposed of, it is treated as HCA waste as contemplated in regulation 15.
(6)Subject to the provisions of the Facilities Regulations, an employer must, where reasonably practicable, provide an employee who is using personal protective equipment, as contemplated in subregulation (1), with–
(a)adequate washing facilities, which are readily accessible and located in an area where the facilities will not become contaminated, in order to enable an employee to meet a standard of personal hygiene consistent with the adequate control of exposure, and to avoid the spread of an HCA;
(b)two separate lockers, separately labelled "protective clothing" and "personal clothing", and ensure that the clothing is kept separately in the locker concerned; and
(c)separate "clean" and "dirty" change rooms if the employer uses or processes an HCA to the extent that the HCA could endanger the health of persons outside of the workplace.

12. Maintenance of control measures

An employer must ensure–
(a)that all control equipment and facilities provided in terms of regulations 10 and 11 are maintained in good working order; and
(b)that thorough examinations and tests of engineering control measures are carried out at intervals not exceeding 24 months by an approved inspection authority.

13. Prohibitions

No person may, as far as is reasonably practicable–
(a)use compressed air or permit the use of compressed air to remove particles of an HCA from any surface or person;
(b)smoke, eat, drink or keep food or beverages in a respirator zone or permit any other person to smoke, eat, drink or keep food or beverages in that zone;
(c)use statements such as "non-toxic", "non-harmful", "non-polluting" or "non-hazardous" or similar statements indicating the HCA as not hazardous, or any other statements that are inconsistent with the HCA's GHS classification on the label or packaging of any HCA; and
(d)manufacture, procure, use, handle or store within the workplace–
(i)a prohibited HCA as listed in Table 1 of Annexure 2;
(ii)ozone-depleting substances provided for in the Regulations regarding the Phasing-Out and Management of Ozone-Depleting Substances, published as Government Notice No. R. 351 of 8 May 2014; and
(iii)persistent organic pollutants prohibited by the Prohibition on the Import, Export, Possession, Acquisition, Sale, Use and Disposal of Agricultural Remedies, under section 7 of the Fertilizers, Farm Feeds, Agricultural Remedies and Stock Remedies Act, 1947 (Act No. 36 of 1947), published as Government Notice No. R. 862 of 29 July 2016.
[Date of commencement of paragraph (d): 18 months after promulgation]

14. Classification of hazardous chemical agents

The manufacturer or importer of a chemical agent must, before it is supplied to a workplace–
(a)determine whether the chemical agent is an HCA by carrying out a hazard assessment referencing the cut-off values provided in Tables 4 and 5 of Annexure 1;
(b)if the substance, mixture or article is an HCA, ensure that a GHS classification is carried out for the HCA; and
(c)review the GHS classification should a change in the composition of the HCA be made.
[Date of commencement of section 14: 18 months after promulgation]

14A. Safety data sheet

(1)Subject to section 10(3)(b) of the Act and regulation 14, a safety data sheet for an HCA must be–
(a)prepared by an importer or manufacturer before manufacture and, if this is not reasonably practicable, immediately after manufacture but before import: Provided that the safety data sheet is–
(i)GHS compliant;
(ii)classified for the HCA, in accordance with regulation 14;
(iii)reviewed at least once every five years;
(iv)amended whenever necessary to ensure that it contains correct and current information, aligned to its GHS classification required by regulation 14(c), which includes new data regarding the hazard presented by an HCA that changes its classification in a category or subcategory of a hazard class or results in its classification to another hazard class; and
(v)given the most recent applicable date, which may be the date of first issue, review or amendment;
(b)provided by a manufacturer or importer to–
(i)a supplier of the HCA to a workplace; and
(ii)any person who is likely to be affected by the HCA;
(c)provided by a supplier of the HCA–
(i)when the HCA is first supplied to the workplace;
(ii)if the SDS for the HCA is amended; and
(iii)to any person at the workplace if they request the SDS; and
(d)obtained by the employer from the manufacturer, importer or supplier of the HCA and provided to–
(i)any person who is involved in using, handling, or likely to be exposed to, the HCA at the workplace;
(ii)any person at the workplace who needs the information to assess risk related to health and safety;
(iii)any health practitioner who needs the information to treat a person who has been exposed to the HCA; or
(iv)an emergency service professional who requires the information to fulfil his duties as an emergency respondent.
(2)Paragraphs (a) and (b) of subregulation (1) do not apply to a manufacturer or importer of an HCA who has not manufactured or imported that HCA in the past five years.
(3)The information in the GHS compliant safety data sheet must be presented using the following 16 headings in the order given below, as may be updated from time to time:
(a)Section 1: identification of the substance/mixture and of the company/undertaking;
(b)Section 2: hazards identification;
(c)Section 3: composition/information on ingredients;
(d)Section 4: first-aid measures;
(e)Section 5: firefighting measures;
(f)Section 6: accidental release measure;
(g)Section 7: handling and storage;
(h)Section 8: exposure controls/personal protection;
(i)Section 9: physical and chemical properties;
(j)Section 10: stability and reactivity;
(k)Section 11: toxicological information;
(l)Section 12: ecological information;
(m)Section 13: disposal considerations;
(n)Section 14: transport information;
(o)Section 15: regulatory information; and
(p)Section 16: other information.
[Date of commencement of section 14A: 18 months after promulgation]

14B. Labelling of hazardous chemical agents

(1)With regard to the labelling of an HCA–
(a)a manufacturer or importer of an HCA must ensure that the HCA is correctly labelled as soon as practicable after the HCA is manufactured or imported;
(b)a supplier of an HCA may not supply an HCA if it is not correctly labelled;
(c)a retailer of an HCA may not supply any consumer product containing an HCA to be used in a workplace if it is not correctly labelled; and
(d)an employer must–
(i)ensure that an HCA that is used, handled or stored at the workplace is correctly labelled;
(ii)ensure that a container labelled for an HCA is used for only the use, handling or storage of that HCA;
(iii)as far as is reasonably practicable, ensure that when an HCA is transferred or decanted at the workplace, from its original container into a destination container, the destination container is correctly labelled for that HCA; and
(iv)ensure that an HCA within pipework is identified by a label or sign or in any other suitable manner, on or near the pipework, subject to the following:
(aa)Where the product is a mixture of two or more HCAs, the intermediate or finished product name may be used for identification;
(bb)sampling, loading points or any other termination point of a pipe, where during normal operations an employee may be exposed to an HCA, must be identified; and
(cc)pipework, including the splitting of flanges, where an employee may be exposed during routine maintenance activities, should be identified as far as is reasonably practicable.
(2)Subject to the provisions of subregulation (1), an HCA is correctly labelled if the selection and use of label elements are in accordance with the GHS and if the HCA is packed in a container that has a label–
(a)that includes–
(i)the product identifier and, where applicable, the United Nations proper shipping name;
(ii)the chemical identity of all the ingredients contributing to the final GHS classification of the HCA;
(iii)the name, address, and business telephone number of the manufacturer or importer;
(iv)an emergency telephone number where support is available; and
(v)a signal word, hazard statement, precautionary statement and hazard pictogram consistent with the HCA's GHS classification, made in accordance with regulation 14; and
(b)that may include–
(i)the quantity of the HCA in the package, unless this quantity is specified elsewhere on the package;
(ii)the quantity of each HCA ingredient;
(iii)any information about the hazards, and first-aid and emergency procedures relevant to the HCA, not otherwise included in the hazard statement or precautionary statement;
(iv)first-aid measures; and
(v)an expiry date, where applicable.
[Date of commencement of section 14B: 18 months after promulgation]

14C. Packaging of hazardous chemical agents

(1)Packaging for an HCA must satisfy the relevant requirements of the UN Transport of Dangerous Goods, with respect to packaging and fastenings, or, where applicable, the UN IMO International Maritime Dangerous Goods Code, including the following requirements:
(a)The manufacturer or importer of an HCA must ensure that the HCA is correctly packed, as soon as reasonably practicable after manufacturing or importing.
(b)For the purposes of paragraph (a), the expression "correctly packed" means–
(i)that the packaging is in sound condition;
(ii)that the packaging is durably and legibly marked;
(iii)that the packaging will safely contain the chemical for the time the chemical is likely to be packed;
(iv)that the packaging is made of a material that is compatible with the HCA and will not be adversely affected by the HCA;
(v)that the packaging and fastenings are strong and solid throughout to ensure that they will not loosen and will meet the normal stresses and strains of handling; and
(vi)that the packaging does not usually contain food or beverages and cannot mistakenly be identified as containing food or beverages.
(2)Where a retailer supplies an HCA in a container that is supplied by the person purchasing the chemical, the retailer must ensure that the HCA is correctly packed or repacked as contemplated in subregulation (1).
(3)Where a retailer supplies the person purchasing the chemical with a container, the retailer must ensure that the HCA is correctly packed or repacked as contemplated in subregulation (1).
(4)The employer or self-employed person must receive, use, handle or store an HCA only if it is correctly packed as contemplated in subregulation (1).
(5)An employer must–
(a)as far as reasonably practicable, ensure that a container or a vehicle in which an HCA is transported is clearly identified as transporting an HCA; and
(b)ensure that such transportation complies with the National Road Traffic Act, 1996 (Act No. 93 of 1996).
[Date of commencement of section 14C: 18 months after promulgation]

14D. Disclosure of ingredient identity

(1)Where an ingredient in an HCA causes the correct classification of the chemical, in terms of regulation 14(b) to include a hazard class and hazard category–
(a)referred to in Table 4 of Annexure 1, the chemical identity of the ingredient detailed must be disclosed; or
(b)referred to in Table 5 of Annexure 1, the chemical identity of the ingredient may be disclosed by its generic name if–
(i)the identity of the ingredient is commercially confidential;
(ii)the ingredient does not cause the correct classification of the hazardous chemical to include any other hazard class and hazard category in Table 4 of Annexure 1; and
(iii)an OEL for the ingredient has not been established; and
(c)in all other cases not included in subregulation (1)(b), the ingredient must be disclosed by its chemical identity.
(2)The identity of the ingredient of an HCA in terms of subregulation (1)(a), or the generic name of the ingredient of the hazardous chemical in terms of subregulation (1)(b), must be on the label and SDS.
(3)Where an ingredient of an HCA must be disclosed in terms of subregulation (1)(a), the proportion of the ingredient to the hazardous chemical must be disclosed as follows:
(a)Where the exact proportion of the ingredient is not commercially confidential, the exact proportion is expressed as a percentage of the chemical by mass or volume; or
(b)where the exact proportion of the ingredient is commercially confidential, the exact proportion is expressed as a percentage of the chemical by mass or volume in terms of the following ranges within which the exact proportion fits:
(i)10%;
(ii)10 to 30%;
(iii)30 to 60%;
(iv)60%;
(v)a range that is narrower than the ranges provided for in subparagraph (i), (ii), (iii) or (iv).
[Date of commencement of section 14D: 18 months after promulgation]

15. Disposal of hazardous chemical agents

An employer must, as far as is reasonably practicable–
(a)recycle all HCA waste;
(b)ensure that all HCA waste is classified and disposed of as waste in terms of the following legislation:
(i)The Waste Classification and Management Regulations, 2013, published as Government Notice No. R. 634 of 23 August 2013; and
(ii)the National Norms and Standards for the Assessment of Waste for Landfill Disposal, published as Government Notice No. R. 635 of 23 August 2013; and
(c)ensure that all collectable HCA waste is placed in containers that prevent the likelihood of exposure during handling;
(d)ensure that all vehicles, reusable containers and covers, which have been in contact with HCA waste, are cleaned and decontaminated after use in such a way that the vehicles, containers or covers do not cause a hazard inside or outside the premises concerned;
(e)ensure that all employees occupied in the collection, transport and disposal of HCA waste, who may be exposed to that waste, are provided with suitable personal protective equipment; and
(f)ensure that if the services of a waste disposal contractor are used, a provision is incorporated into the contract stating that the contractor must also comply with the provisions of these regulations.

16. Offences and penalties

Any person who contravenes or fails to comply with any provision of regulation 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13,14, 14A, 14B, 14C or 14D shall be guilty of an offence and liable on conviction to a fine or to imprisonment for a period not exceeding six months and, in the case of a continuous offence, to an additional fine of R500 for each day on which the offence continues or additional imprisonment of one day for each day on which the offence continues: Provided that the period of such additional imprisonment shall in no case exceed 90 days.

17. Repeal of regulations

(1)The Regulations for Hazardous Chemical Substances, 1995, published as Government Notice No. R. 1179 of 25 August 1995, are hereby repealed.

18. Short title and commencement

(1)These regulations shall be called the Regulations for Hazardous Chemical Agents, 2020.
(2)Regulations 13(d), 14, 14A, 14B, 14C, 14D; Annexure 1, Tables 1, 2, 3, 4 and 5; and Annexure 2, Tables 1, 2, 3 and 4 shall come into effect 18 months after the promulgation of these regulations.

Annexure 1

Table – 1: GHS hazard classes – physical hazards

[Date of commencement of Table 1: 18 months after promulgation]
Hazard classes Categories/Divisions/Types
Flammable gases Cat 1A & B Cat 2        
Aerosols, flammable and non-flammable Cat 1 Cat 2        
Oxidising gases Cat 1          
Gases under pressure            
Compressed gas Cat 1          
Liquefied gas Cat 1          
Refrigerated liquefied gas Cat 1          
Dissolved gas Cat 1          
Flammable liquids Cat 1 Cat 2 Cat 3      
Flammable solids Cat 1 Cat 2        
Self-reactive substances and mixtures Type A Type B Type C Type D Type E Type F
Pyrophoric liquids Cat 1          
Pyrophoric solids Cat 1          
Self-heating substances and mixtures, Cat 1 Cat 2        
Substance and mixtures which, in contact with water, emit flammable gases Cat 1 Cat 2 Cat 3      
Oxidising liquids Cat 1 Cat 2 Cat 3      
Oxidising solids Cat 1 Cat 2 Cat 3      
Organic peroxides Type A Type B Type C Type D Type E Type F
Corrosive to metals Cat 1          

Table – 2: GHS hazard classes – health hazards

[Date of commencement of Table 2: 18 months after promulgation]
Hazard classes Categories  
Acute toxicity        
Oral Cat 1 Cat 2 Cat 3 Cat 4
Dermal Cat 1 Cat 2 Cat 3 Cat 4
Inhalation Cat 1 Cat 2 Cat 3 Cat 4
Skin corrosion/irritation Cat 1, 1A, B & Ca Cat 2    
Serious eye damage/eye irritation Cat 1 Cat 2/ 2A    
Respiratory sensitizer Cat 1 Cat 1Aa Cat 1Ba  
Skin sensitizer Cat 1 Cat 1Aa Cat 1Ba  
Germ cell mutagenicity Cat 1, 1A & B Cat 2    
Carcinogenicity Cat 1, 1A & B Cat 2    
Reproductive toxicity Cat 1A & B Cat 2 Lactation  
Specific target organ toxicity - single exposure Cat 1 Cat 2 Cat 3  
Specific target organ toxicity - repeated exposure Cat 1 Cat 2    
Aspiration hazard Cat 1 Cat2    
a sub-categories may be applied where data are sufficient and where required by a competent authority.

Table – 3: GHS hazard classes – environmental hazards*

[Date of commencement of Table 3: 18 months after promulgation]
Hazard classes Categories
Hazardous to the aquatic environment short-term (Acute)Hazardous to the aquatic environment long-term (Chronic) Acute 1  
Chronic 1 Chronic 2
Hazard to the ozone layer Cat 1  
* the hazard classes and categories provided in Table 3 for environmental hazards are intended as references and a guideline for the classification of chemicals.For Annexure 1, Table 1 and 2, the classes and categories provided are based on GHS, Rev. 8, 2019, but they will be adjusted with changes to the GHS, as may be updated from time to time.

Table – 4: Identity of ingredients to be disclosed

[Date of commencement of Table 4: 18 months after promulgation]
Hazard classes Categories  
Acute toxicity    
Oral Cat 1 Cat 2 Cat 3 Cat 4
Dermal Cat 1 Cat 2 Cat 3 Cat 4
Inhalation Cat 1 Cat 2 Cat 3 Cat 4
Respiratory or skin sensitisation Cat 1      
Germ cell mutagenicity Cat 1A & B Cat 2    
Carcinogenicity Cat 1A & B Cat 2    
Reproductive toxicity Cat 1A & B Cat 2 Lactation  
Specific target organ toxicity - single exposure Cat 1 Cat 2 Cat 3  
Specific target organ toxicity - repeated exposure Cat 1 Cat 2    
Aspiration hazard Cat 1      
Skin corrosion or irritation Cat 1A, B & C Cat 2    
Serious eye damage or eye irritation Cat 1 Cat 2A

Table – 5: Generic names used to disclose identity of ingredients

[Date of commencement of Table 5: 18 months after promulgation]
Hazard classes Categories
Acute toxicity        
Oral       Cat 4
Dermal       Cat 4
Inhalation       Cat 4
Aspiration hazard Cat 1      
Serious eye damage or eye irritation   Cat 2A    
Skin corrosion or irritation   Cat 2    
Specific target organ toxicity - single exposure     Cat 3  

Annexure 2

Table – 1: Prohibited hazardous chemical agents

[Date of commencement of Table 1: 18 months after promulgation]
Hazardous chemical agent CAS number
4-AMINOPHENYL and its salts 92-67-1
BENZIDINE and its salts 92-87-5
2-NAPHTYLAMINE and its salts 91-59-8
4-NITROPHENYL 92-93-3
POLYCHLORINATED BIPHENYLS (PCB), except MONO- and DICHLORINATED BIPHENYLS 1336-36-3
POLYCHLORINATED TERPHENYLS (PCT) 61788-33-8
PREPARATIONS with a PCB or PCT content higher than 0, 01% by weight  

Table – 2: Occupational exposure limits – maximum limits for hazardous chemical agents

[Date of commencement of Table 2: 18 months after promulgation]
Agent CAS number Formula RHCA-OELppm RHCA-OELmg∕m3 RHCA-STEL/Cppm RHCA-STEL/Cmg∕m3 Notations
A
Acrylamide 79-06-1 CH2=CHCONH2 - 0,06(IFV) - - CARC, SKIN
Acrylonitrile 107-13-1 CH2=CHCN 4 - - - SKIN
Arsenic and compounds, except arsine [as As] 7440-38-2 As - 0,02 - - CARC
Asbestos, all forms (see Asbestos Abatement Regulations) 1332-21-4 - - - - - CARC
B
Benzene 71-43-2 C6H6 1 - 5 - CARC, SKIN
Bis(chloromethyl) ether [BCME] 542-88-1 (CH2CI)2O 0,002 - - - CARC
1, 3-Butadiene [buta-l,3-diene] 106-99-0 CH2=(CH)2=CH2 4 - - - CARC
2-Butoxyethanol [EGBE] 111-76-2 - 40 - - -  
C
Cadmium and compounds [as Cd] 7440-43-9 (metal) Cd (metal)   CARC (cadmium metal, cadmium chloride, fluoride and sulphate)
- 0,004(R) - -  
Total particulate     - 0,02 - -  
Carbon disulphide 75-15-0 CS2 2 - - - SKIN
Chromium, and inorganic compounds 7440-47-3    
Metallic chromium   Cr(0) - 1(l) - - -
Trivalent chromium compounds: water-soluble compounds   Cr(III) - 0,006(I) - - CARC, RSEN
Hexavalent chromium compounds: water-soluble compounds   Cr(VI) - 0,0004(I) - 0.001(I) CARC, RSEN, SKIN
Chromyl chloride 14977-61-8 Cr(VI) 0, 0002(IFV)   0,0005(IFV) - CARC, RSEN, SKIN
Chromite ore processing   See hexavalent and trivalent chromium compounds
D
1, 2-Dibromoethane 106-93-4 BrCH2CH2Br 0,5 - - - CARC, SKIN
Dichloromethane 75-09-2 CH2CI2 100 - - - SKIN, CARC
2, 2'-Dichloro-4, 4'-methylene dianiline [MbOCA] 101-14-4 CH2(C6H3CINH2)2 0,02 - - - CARC, SKIN
E
2-Ethoxyethanol [EGEE], [ethylene glycol monoethyl ether] 110-80-5 CH3CH2OCH2CH2OH 10 - - - SKIN
2-Ethoxyethyl acetate [EGEEA], [ethylene glycol monoethyl ether acetate] 111-15-9 C2H5OCH2Ch2OOCCH3 10 - - - SKIN
Ethylene oxide 75-21-8 CH2CH2O 2 - - - CARC
F  
Formaldehyde 50-00-0 HCHO 0,2 - 0,6 - CARC, DSEN, RSEN
G
Grain dust (oat, wheat, barley, maize, rye) - - - 8 - - RSEN
H
Hydrogen cyanide [as CN] 74-90-8 HCN - - 9,4 - SKIN
L
Lead and compounds (see Lead Regulations)   Pb See Lead Regulations CARC (lead compounds, inorganic)
Tetraethyl lead [as Pb] 78-00-2   See Lead Regulations SKIN
Tetramethyl lead [as Pb] 75-74-1   See Lead Regulations SKIN
N
Nickel and its inorganic compounds [as Ni] 7440-02-0    
Soluble inorganic compounds (NOS)       0,1(I)     CARC
        0,02(R)     CARC
Insoluble inorganic compounds (NOS)       0,1(I)     CARC
        0,02(R)     CARC
R
Rubber fume - - - 0,4 - - CARC
S
*Silica, crystalline        
Cristobalite 14464-46-1 SiO - 0,1(R) - - CARC
Quartz 14808-60-7 SiO2 - 0,1(R) - - CARC
Tridymite 15468-32-3 SiO2 - 0,1(R) - -  
Tripoli 1317-95-9 SiO2 - 0,1(R) - -  
Styrene, monomer 100-42-5 C6H5CH=CH2 40 - 80 - CARC
T
Talc (containing asbestos fibres) 14807-96-6 Mg3Si4O10(OH)2 See Asbestos Abatement Regulations CARC
1, 1, 1-Trichloroethane 71-55-6 CH3CCI3 700 - 900 -  
Trichloroethylene 79-01-6 CCI2=CHCI 20 - 50 - CARC, SKIN
V  
Vinyl chloride 75-01-4 H2C=CHCI 2 - - - CARC
W
Wood dust species: oak, beech, birch, mahogany, teak and walnut - - - 2(I) - - CARC, RSEN
Abbreviations:mg/m3: milligrams per cubic meterOEL-ML: occupational exposure limit-maximum limitOEL-RL: occupational exposure limit - restricted limitppm: parts per millionRHCA: Regulations for Hazardous Chemical AgentsSTEL/C: short-term exposure limit, ceiling limitNotations:CARC: denotes carcinogenicity, which is based on GHS categorisation, including category 1A and 1B; DSEN: dermal sensitisation, potential to produce dermal sensitisation;E: the value is for particulate matter containing no asbestos and < 1% crystalline silica;F: respirable fibres: length > 5 μm; aspect ratio ≥ 3: 1 as determined by the membrane filter method at 400-450X magnification (4 mm objective), using phase-contrast illumination;H: aerosol only;I: inhalable fraction;IFV: inhalable fraction and vapour;Inhalable particulate matter (IPM): for those materials that are hazardous when deposited anywhere in the respiratory tract;R: respirable fraction;RSEN: respiratory sensitisation, potential to produce respiratory sensitisation;SKIN: danger of cutaneous absorption - refers to the potential significant contribution to the overall exposure by the cutaneous route, including mucous membranes, and the eyes by contact with vapours, liquids and solids; overexposure may also occur following dermal contact with liquids and aerosols, even when airborne exposures are at or below the OEL;T: thoracic fraction; andV: vapour fraction.RSEN and DSEN do not imply that sensitisation is the critical effect on which the OEL is based, nor do they imply that this effect is the sole basis for the agent's OEL.Note:*All industries handling, manufacturing and producing silica dust are required to submit biannual reports that include the following:■ number of samples taken and analysed;■ Composition of dust;■ concentration of the constituents; and■ whether the employer is complying with the OEL, and if not, what steps are implemented to comply with the exposure limit.

Table – 3: Occupational exposure limits - restricted limits for hazardous chemical agents

[Date of commencement of Table 3: 18 months after promulgation]
Agent CAS number Formula OEL eight-hour TWA OEL eight-hour TWA OEL-STEL/C OEL-STEL/C Notations
      ppm mg∕m3 ppm mg∕m3  
A              
Acetaldehyde 75-07-0 CH3CHO - - 50 - CARC
Acetic acid 64-19-7 CH3COOH 20 - 30 -  
Acetic anhydride 108-24-7 (CH3CO)2O 2 - 6 -  
Acetone 67-64-1 (CH3)2CO 500 - 1000 -  
Acetonitrile 75-05-8 CH3CN 40 - - - SKIN
Acetylsalicylic acid [aspirin] 50-78-2 CH3COOC6H4COOH - 10 - -  
Acrolein [Acrylaldehyde] 107-02-8 CH2=CHCHO - - 0,2 - SKIN
Acrylic acid 79-10-7 CH2=CHCOOH 4 - - - SKIN
Aldrin 309-00-2 C12H8CI6 - 0.1(IFV) - - SKIN
Allyl alcohol 107-18-6 CH2=CHCH2OH - 1 - - SKIN
Allyl chloride 107-05-1 CH2=CHCH2CI 2 - 4 - SKIN
Allyl glycidyl ether [AGE] 106-92-3 C6H10O2 2 - - -  
Aluminium metal and insoluble compounds [as Al] 7429-90-5 (metal) Al (metal) - 2(R) - -  
Aminodimethylbenzene 95-64-7       See xylidine    
2-Aminoethanol 141-43-5 NH2CH2CH2OH     See ethanolamine    
Ammonia, anhydrous 7664-41-7 NH3 50 - 70 -  
Ammonium chloride, fume 12125-02-9 NH4CI - 10 - 20  
Ammonium sulphamate 7773-06-0 NH2SO3NH4 - 10 - -  
Aniline 62-53-3 C6H5NH2 4 - - - SKIN
Anisidines, o- and p- isomers 90-04-0, 104-94-9 NH2C6H4OCH3 - 1 - - CARC, SKIN
Antimony and compounds [as Sb], except antimony trisulphide, antimony trioxide and antimony 7440-36-0 Sb   1     CARC
hydride              
Antimony hydride 7803-52-3       See stibine    
Arsine 7784-42-1 AsH3 0,01 - - -  
Asphalt, petroleum fumes 8052-42-4 - - 1(I) - - CARC
Atrazine 1912-24-9 C8H14CIN5 - 4 - -  
Azinphos-methyl 86-50-0 C10H12O3PS2N3 - 0,4(IFV) - - DSEN, SKIN
B              
Barium and soluble compounds [as Ba] 7440-39-3 - - 1 - -  
Barium sulphate 7727-43-7 BaSO4 - 10(I,E) - -  
Benomyl 17804-35-2 C14H18N4O3 - 2(I) - - DSEN
Benzene-1, 2, 4, - tricarboxylic acid 1, 2- anhydride 552-30-7 C9H4O5 - 0,001(IFV) - 0,004(IFV) DSEN, RSEN, SKIN
p-Benzoquinone 106-51-4 C6H4O2 0,2 - - -  
Benzoyl peroxide 94-36-0 (C6H5CO)2O2 - 10 - -  
Benzyl chloride 100-44-7 C6H5CH2CI 2 - - - CARC
Beryllium and compounds [as Be] 7440-41-7 Be - 0,0001(I) - - DSEN, RSEN, SKIN
Biphenyl 92-52-4 C6H5C6H5 0,4 - - -  
Bismuth telluride [as Bi2Te3]              
Undoped 1304-82-1 Bi2Te3 - 10 - -  
Selenium-doped -   - 10 - -  
Borates, tetra, sodium salts              
Anhydrous 1330-43-4 Na2B4O7 - 4 - 12  
Decahydrate 1303-96-4 Na2B4O7.10H2O - 4 - 12  
Pentahydrate 12179-04-3 Na2B4O7.5H2O - 4 - 12  
Boron oxide 1303-86-2 B2O3 - 10 - -  
Boron tribromide 10294-33-4 BBr3 - - 1,4 -  
Boron trifluoride 7637-07-2 BF3 - - 1,4 -  
Bromacil 314-40-9 C9H13BrN2O2 - 10 - -  
Bromine 7726-95-6 Br2 0,2 - 0,4 -  
Bromine pentafluoride 7789-30-2 BrF5 0,2 - - -  
Bromoethane 74-96-4 CH3CH2Br 10 - - - SKIN
Bromoethylene 593-60-2 CH2=CHBr     See vinyl bromide    
Bromoform 75-25-2 CHBr3 1 - - -  
Bromomethane 74-83-9 CH3Br     See methyl bromide    
n-Butane 106-97-8 CH3CH2CH2CH3 - - 2000 -  
2-Butanol [sec-butyl alcohol] 78-92-2 CH3CH(OH)CH2CH3 200 - - -  
tert-Butanol [tert-butyl alcohol] 75-65-0 (CH3)3COH 200 - - -  
trans-But-2-enal         See crotonaldehyde   SKIN
n-Butyl acetate 123-86-4 CH3COO(CH2)3CH3 100 - 300 -  
sec-Butyl acetate 105-46-4 C6H12O2 100 - 300 -  
tert-Butyl acetate 540-88-5 CH3COOC(CH3)3 100 - 300 -  
Butyl acrylate 141-32-2 CH2=CHCOOC4H9 4 - - - DSEN
n-Butylamine 109-73-9 CH3(CH2)3NH2 - - 10 - SKIN
n-Butyl glycidyl ether [BGE] 2426-08-6 C4H9OCH2CHCH2O 6 - - - DSEN, SKIN
n-Butyl lactate 138-22-7 CH3CH(OH)COOC4H9 10 - - -  
o-sec-Butylphenol 89-72-5 C2H5(CH3)CHC6H4OH 10 - - - SKIN
C              
Calcium cyanamide 156-62-7 CaNC≡N - 1 - -  
Calcium hydroxide 1305-62-0 Ca(OH)2 - 10 - -  
Calcium oxide 1305-78-8 CaO - 4 - -  
Calcium silicate, [naturally occurring as wollastonite] 1344-95-2 CaSiO3 - 2(I, E) - -  
Calcium sulphate [including plaster of Paris and gypsum] 7778-18-9, 10034-76-1, 10101-41-4, 13397-24-5 CaSO4 - 10(I) - -  
Camphor, synthetic 76-22-2 C10H16O 4 - 6 -  
Caprolactam 105-60-2 NH(CH2)5CO   10(IFV)      
Captafol 2425-06-1 C10H9CI4NO2S - 0,2(IFV) - - CARC, SKIN
Captan 133-06-2 C9H8CI3NO2S - 10(I) - - DSEN, SKIN
Carbaryl 63-25-2 CH3NHCOOC10H7 - 1(IFV) - - SKIN
Carbofuran 1563-66-2 C12H15NO3 - 0,2(IFV) - -  
Carbon black 1333-86-4 C - 6(I) - - CARC
Carbon dioxide 124-38-9 CO2 10000 - 60000 -  
Carbon monoxide 630-08-0 co 50 - - -  
Carbon tetrabromide 558-13-4 CBr4 0,2 - 0,6 -  
Carbon tetrachloride 56-23-5 CCI4 10 - 20 - CARC, SKIN
Catechol 120-80-9 C6H4(OH)2 10 - - - CARC, SKIN
Cellulose 9004-34-6 (C6H10O5)n - 10 - -  
Cement [Portland cement] - - - 2(E, R) - -  
Chlordane 57-74-9 C10H6CI8 - 1(IFV) - - CARC, SKIN
Chlorine 7782-50-5 Cl2 0,2 - 0,8 -  
Chlorine dioxide 10049-04-4 CIO2   - 0,2 -  
Chlorine trifluoride 7790-91-2 CIF3 - - 0,2 -  
2-Chloroacetophenone 532-27-4 C6H5COCH2CI 0,1 - - -  
Chloroacetyl chloride 79-04-9 cich2coci 0,1 - 0,3 - SKIN
Chlorobenzene 108-90-7 C6H5CI 20 - - - SKIN
Chlorobromomethane 74-97-5 CH2BrCI 400 - - -  
Chlorodifluoromethane 75-45-6 CHCIF2 2000 - - -  
Chlorodiphenyl [PCBs]     - - - - CARC, SKIN
Chlorodiphenyl (42% chlorine) 53469-21-9 C6H4CIC6H3CI2 (approx.) - 2 - - CARC, SKIN
Chlorocliphenyl (54% chlorine) 11097-69-1 C6H3CI2C6H2CI3 (approx.) - 1 - - CARC, SKIN
l-Chloro-2, 3-epoxy-propane 106-89-8 C3H5OCI     See epichlorohydrin    
Chloroethane 75-00-3 CH3CH2CI     See ethyl chloride    
2-Chloroethanol 107-07-3 CH2CICH2OH     See ethylene chlorohydrin    
Chloroethylene 75-01-4 H2C=CHCI     See vinyl chloride    
Chloroform 67-66-3 CHCI3 20 - - - CARC, SKIN
Chloropentafluoroethane 76-15-3 CCIF2CF3 2000 - - -  
Chloropicrin 76-06-2 CCI3NO2 0,2 - - -  
beta-Chloroprene 126-99-8 CH2=CCICH=CH2 2 - - - CARC, SKIN
alpha-Chlorotoluene 100-44-7 C6H5CH2CI     See benzyl chloride    
2-Chlorotoluene [o-Chlorotoluene] 95-49-8 CIC6H4CH3 100 - - -  
2-Chloro-6-(trichloromethyl)pyridine 1929-82-4 CIC5H3NCCI3     See nitrapyrin    
Chlorpyrifos 2921-88-2 C9H11CI3NO3PS   0.2(IFV)     SKIN
Chromium, metal              
Metallic chromium as Cr [0] 7440-47-3 (metal) Cr (metal) - 1(I) - -  
Coal dust: - -          
Anthracite     - 0,8(r) - -  
Bituminous or lignite     - 1,8(r) - -  
Coal tar pitch volatiles [as cyclohexane soluble fraction] 65996-93-2 - - 0,4 - - CARC
Cobalt and cobalt inorganic compounds [as Co] 7440-48-4 (metal) Co (metal) - 0,04(I) - - CARC, RSEN
Copper:              
Fume (copper oxide) [as Cu] 1317-38-0 CuO - 0,4 - -  
Dusts and mists [as Cu] 7440-50-8 (metal) Cu (metal) - 2 - -  
Cotton dust, raw, untreated -            
Cotton dust (less fly)     - 0,2(T) - -  
Cotton dust   - - 2,5 - -  
Cresols, all isomers 95-48-7, 106-44-5, 108-39-4, 1319-77-3 CH3C6H4OH   40(IFV)     SKIN
Crotonaldehyde 4170-30-3 CH3CH=CHCHO - - 0,6 - SKIN
Cumene 98-82-8 C6H5CH(CH3)2 100 - - - CARC, SKIN
Cyanamide 420-04-2 NH2CN - 4 - - SKIN
Cyanide salts [as CN]              
Calcium cyanide 592-01-8 Ca(CN)2 - - - 10 SKIN
Potassium cyanide 151-50-8 KCN - - - 10 SKIN
Sodium cyanide 143-33-9 NaCN - - - 10 SKIN
Cyanogen 460-19-5 (CN)2 - - 10 -  
Cyanogen chloride 506-77-4 CICN - - 0,6 -  
Cyclohexane 110-82-7 C6H12 200 - - -  
Cyclohexanol 108-93-0 C6H11OH 100 - - - SKIN
Cyclohexanone 108-94-1 C6H10O 40 - 100 - SKIN
Cyclohexene 110-83-8 C6H10 600 - - -  
Cyclohexylamine 108-91-8 C6HnNH2 20 - - -  
Cyclonite [RDX] 121-82-4 C3H6N6O6 - 1 - - SKIN
Cyhexatin 13121-70-5 (C6H11)3SnOH - 10 - - SKIN
D              
DMDT [p, pl-dimethoxydiphenyltrichloroethane] - -   See methoxychlor      
Diacetone alcohol 123-42-2 CH3COCH2C(CH3)2OH 100 - - -  
Diazinon 333-41-5 C12H21N2O3PS - 0,02(IFV) - - CARC, SKIN
Diazomethane 334-88-3 CH2N2 0,4 - - -  
Dibenzoyl peroxide 94-36-0 (C6H5CO)2O2     See benzoyl peroxide    
Diborane 19287-45-7 B2H6 0,2 - - -  
Diboron trioxide 1303-86-2 B2O3     See boron oxide    
Dibromodifluoromethane [difluorodibromomethane] 75-61-6 CBr2F2 200 - - -  
Dibutyl phenyl phosphate 2528-36-1 C14H23O4P 0,6 - - - SKIN
Dibutyl phosphate 107-66-4 (C4H9O)2(OH)PO - 10(IFV) - - SKIN
Dibutyl phthalate 84-74-2 C6H4(CO2C4H9)2 - 10 - -  
Dichloroacetylene 7572-29-4 CIC=CCI - - 0,2 -  
Diesel particulate matter (DPM)     0,16        
1, 2-Dichlorobenzene [o-Dichlorobenzene] 95-50-1 C6H4CI2 50 - 100 - SKIN
1, 4-Dichlorobenzene [p-Dichlorobenzene] 106-46-7 C6H4CI2 20 - - - CARC
Dichlorodifluoromethane Idifluorodichloromethane] 75-71-8 CCI2F2 2000 - - -  
l, 3-Dichloro-5, 5-dimethyl hydantoin 118-52-5 C5H6CI2N2O2 - 0,4 - 0,8  
1, 1-Dichloroethane 75-34-3 CH3CHCI2 200 - - - SKIN
1, 2-Dichloroethane 107-06-2 CICH2CH2CI 20 - - - CARC, SKIN
1, 1-Dichloroethylene 75-35-4 CH2=CCI2 - 10 - -  
1, 2 Dichloroethylene, cis and trans isomers 540-59-0 CICH=CHCI 400 - - -  
Dichlorofluoromethane 75-43-4 CHCI2F 20 - - -  
1, 3-Dichloropropene (cis and trans isomers) 542-74-6   2 - - - CARC, SKIN
1, 3-Dichloropropene, cis and trans isomers 542-75-6 cihc=chch2ci 2 - - - CARC, SKIN
1, 2-Dichlorotetrafluoroethane 76-14-2 CCIF2CCIF2 2000 - - -  
Dichlorvos [DDVP] 62-73-7 (Ch3O)2POOCH=CCI2 - 0.2(IFV) - - CARC, DSEN, SKIN
Dicyclopentadiene 77-73-6 C10H12 1 - 2 -  
Dicyclopentadienyl iron (as Fe) 102-54-5 (C5H5)2Fe - 10 - -  
Dieldrin 60-57-1 C12H8CI6O - 0.2(IFV) - - SKIN
Diethanolamine 111-42-2 (CH2CH2OH)2NH - 2(IFV) - - CARC, SKIN
Diethylamine 109-89-7 (C2H5)2NH 10 - 30 - SKIN
2-Diethylaminoethanol 100-37-8 (C2H5)2NCH2CH2OH 4 - - - SKIN
1, 4-Diethylenediamine 110-85-0 C4H10N2     See piperazine    
Diethylenetriamine [DETA] 111-40-0 (NH2CH2CH2)2NH 2 - - - SKIN
Di-(2-ethylhexyl) phthalate [DEHP] 117-81-7 C6H4(COOC8H17)2 - 10 - - CARC
Diethyl ketone 96-22-0 CH3CH2COCH2CH3 400 - 600 -  
Diethyl phthalate 84-66-2 C6H4(COOC2H5)2 - 10 - -  
Diglycidyl ether [DGE] 2238-07-5 (OCH2CHCH2)2O 0, 02 - - -  
O-Dihydroxybenzene   C6H4(OH)2     See catechol    
m-Dihydroxybenzene 108-46-3 C6H4(OH)2     See resorcinol    
P-Dihydroxybenzene   C6H4(OH)2     See hydroquinone    
Diisobutyl ketone 108-83-8 [(CH3)2CHCH2]2CO 50 - - -  
Diisopropylamine 108-18-9 (CH3)2CHNHCH(CH3)2 10 - - - SKIN
N,N-DimethyIacetamide 127-19-5 CH3CON(CH3)2 20 - - - SKIN
Dimethylamine 124-40-3 (CH3)2NH 10 - 30 - DSEN
N,N-DimethyIaniIine 121-69-7 C6H5N(CH3)2 10 - 20 - SKIN
1,3-Dimethylbutyl acetate 108-84-9 C8H16O2 100 - - -  
N7N-DimethyIformamide 68-12-2 HCON(CH3)2 20 - - - CARC, SKIN
Dimethyl phthalate 131-11-3 C6H4(COOCH3)2 - 10 - -  
Dimethyl sulphate 77-78-1 (CH3)2SO4 0, 2 - - - CARC, SKIN
Dinitolmide 148-01-6 C8H7N3O5 - 2 - -  
Dinitrobenzene, all isomers 25154-54-5 C6H4(NO2)2 0,3 - - - SKIN
Dinitro-o-cresol 534-52-1 CH3C6H2(OH)(NO2)2 - 0, 4 - - SKIN
Dinitrotoluene 25321-14-6 CH3C6H3(NO2)2 - 0, 4 - - CARC, SKIN
1,4-Dioxane 123-91-1 OCH2CH2OCH2CH2 40 - - - CARC, SKIN
Dioxathion 78-34-2 C12H26O6P2S2 - 0,2(IFV) - - SKIN
Diphenylamine 122-39-4 (C6H5)2NH - 10 - -  
Diquat [diquat] 85-00-7 C12H12Br2N2         SKIN
  2764-72-9 - - 1(∣) - -  
  6385-62-2 - - 0,2(R) - -  
Disulfoton 298-04-4 C8H19O2PS3 - 0,1(IFV) - - SKIN
6,6-Di-tert-butyl-4,4'-thiodi-m-cresol 96-69-5 C22H30O2S - - - -  
Diuron 330-54-1 C9H10CI2N2O - 10 - -  
Divinyl benzene [DVB] 1321-74-0 C6H4(HC=CH2)2 20 - - -  
E              
Endosulfan 115-29-7 C9H6CI6O3S - 0,2(IFV) - - SKIN
Endrin 72-20-8 C12H8CI6O - 0, 2 - - SKIN
Enflurane 13838-16-9 CHFCICF2OCHF2 150 - - -  
Epichlorohydrin 106-89-8 C3H5OCI - 1 - - CARC, SKIN
l,2-Epoxy-4-epoxyethyl-cyclo-hexane 106-87-6 C8H12O2     See 4-vinyl cyclohexene dioxide    
2, 3-Epoxypropyl isopropyl ether 4016-14-2 C6H12O2     See isopropyl glycidyl ether [IGE]    
Ethanethiol 75-08-1 CH3CH2SH     See ethyl mercaptan    
Ethanol [ethyl alcohol] 64-17-5 CH3CH2OH - - 2000 -  
Ethanolamine 141-43-5 NH2CH2CH2OH 6 - 12 -  
Ethyl acetate 141-78-6 CH3COOC2H5 800 - - -  
Ethyl acrylate 140-88-5 CH2=CHCOOC2H5 10 - 30 - CARC
Ethylamine 75-04-7 CH3CH2NH2 10 - 30 - SKIN
Ethyl amyl ketone 541-85-5 C8H16O 20 - - -  
Ethyl benzene 100-41-4 CH3CH2C6H5 40 - - - CARC, SKIN
Ethyl bromide 74-96-4 CH3CH2Br     See bromoethane    
Ethyl butyl ketone 106-35-4 CH3CH2CO(CH2)3CH3 100 - 150 - SKIN
Ethyl chloride 75-00-3 CH3CH2CI 200 - - - SKIN
Ethylene chlorohydrin 107-07-3 CH2CICH2OH - - 2 - SKIN
Ethylenediamine 107-15-3 NH2CH2CH2NH2 20 - - -  
Ethylene dibromide 106-93-4 BrCH2CH2Br     See 1, 2- dibromoethane    
Ethylene dichloride 107-06-2 CICH2CH2CI     See 1, 2- dichloroethane    
Ethylene glycol 107-21-1   50(V) - 100(V) 20(H) SKIN
Ethylene glycol dinitrate [EGDN] 628-96-6 O2NOCH2CH2ONO2 0, 1 - - - SKIN
Ethylene glycol methyl ether 109-86-4 CH3OCH2CH2OH 0, 2 - - -  
Ethylene glycol monomethyl ether acetate [EGMEA] 110-49-6 CH3COOCH2CH2OCH3 0, 2 - - - SKIN
Ethyleneimine 151-56-4 CH2NHCH2 0,1 - 0,2 - CARC, SKIN
Ethyl ether [diethyl ether] 60-29-7 C2H5OC2H5 800 - 1000 -  
Ethyl formate 109-94-4 CH3CH2OCHO - - 200 -  
Ethylidene dichloride 75-34-3 CH3CHCI2 - - - -  
Ethyl mercaptan 75-08-1 CH3CH2SH 1 - - -  
4-Ethylmorpholine [N- ethylmorpholine] 100-74-3 C4H8ONCH2CH3 10 - - - SKIN
Ethyl silicate 78-10-4 Si(OC2H5)4 20 - - -  
F              
Fenchlorphos 299-84-3 (CH3O)2PSOC6H2CI3 - 10 - -  
Ferbam 14484-64-1 [(CH3)2NCSS]3Fe - 10(I) - -  
Ferrocene 102-54-5 (C5H5)2Fe     See dicyclopentadien yl iron    
Fluorides [inorganic as F] 16984-48-8 F - 5 - -  
Fluorine 7782-41-4 F2 0,2 - 1 -  
Formamide 75-12-7 HCONH2 20 - - - SKIN
Formic acid 64-18-6 HCOOH 10 - 20 -  
Furfural [2-furaldehyde] 98-0101 C5H4O2 0,4 - - - SKIN
Furfuryl alcohol 98-00-0 och=chch=cch2oh 0,4 - 30 - SKIN
G              
Germanium tetrahydride [germane] 7782-65-2 GeH4 0, 4 - - -  
Glutaraldehyde 111-30-8 OCH(CH2)3CHO - - 0,1 - DSEN, RSEN
Graphite, natural and synthetic 7782-42-5 C - 4(R) - -  
Guthion 86-50-0 C10H12O3PS2N3   0,2 0,6 - SKIN
H              
Hafnium 7440-58-6 Hf - 1 - -  
Halothane 151-67-7 CF3CHCIBr 100 - - -  
Heptachlor and heptachlor epoxide 76-44-8, 1024-57-3 C10H5CI7 - 0,1 - - CARC, SKIN
Heptane, all isomers 142-82-5, 590- 35-2, 565-59-3, 108-08-7, 591- 76-4, 589-34-4 CH3(CH2)5CH3(for n-heptane) 800   1000    
Heptan-3-one 106-35-4 CH3CH2CO(CH2)3CH3     See ethyl butyl ketone    
Hexachloroethane vapour 67-72-1   2 - - - CARC, SKIN
Hexahydro-1,3,5-trinitro-1,3,5-triazine 121-82-4 C3H6N6O6 - 1, 5 - 3 SKIN
Hexamethylene diisocyanate [HDI] 822-06-0 OCN(CH2)6NCO 0, 01 - - -  
Hexane, all isomers except n-hexane 75-83-2, 79-29-8, 96-14-0, 107-83-5 C6H14 1000   2000    
n-Hexane 110-54-3 CH3(CH2)4CH3 100 - - - SKIN
2-Hexanone [hexan-2-one] 591-78-6 CH3CO(CH2)3CH3     See methyl-n- butyl ketone    
Hexone 108-10-1 CH3COCH2CH(CH3)2     See methyl isobutyl ketone [MIBK]    
sec-Hexyl acetate 108-84-9 C8H16O2     See 1, 3- dimethylbutyl acetate    
Hexylene glycol 107-41-5 C6H14O2 50(V) - 100(V) 20(I, H)  
Hydrazine [diamine] 302-01-2 H2NNH2 0,02 - - - CARC, SKIN
Hydrogen bromide 10035-10-6 HBr - - 4 -  
Hydrogen chloride (gas and aerosol mists) 7647-01-0 HCI - - 4 -  
Hydrogen fluoride [as F] 7664-39-3 HF 1 - 4 - CARC, SKIN
Hydrogen peroxide 7722-84-1 H2O2 2 - - -  
Hydrogen selenide [as Se] 7783-07-5 H2Se 0,1 - - -  
Hydrogen sulphide 7783-06-4 H2S 2 - 10 -  
Hydroquinone 123-31-9 C6H4(OH)2 - 2 - - DSEN
2-Hydroxypropyl acrylate [Propylene glycol monoacrylate] 999-61-1 C6H10O3 1 - - - DSEN, SKIN
I              
Indene [Indonaphthene] 95-13-6 C9H8 10 - - -  
Indium and compounds [as In] 7440-74-6 In - 0. 2 - - CARC (indium phosphide)
Iodine 7553-56-2 I2 0,02(IFV) - 0,2(V) -  
Iodoform 75-47-8 CHI3 1,2 - - -  
Iodomethane 74-88-4 CH3I 4 - - - SKIN
Iron oxide fume [as Fe] 1309-37-1 Fe2O3 - 10(R) - -  
Iron pentacarbonyl [as Fe] 13463-40-6 Fe(CO)5 0,2 - 0,4 -  
Iron salts [as Fe] - - - 2 - -  
Isoamyl alcohol 123-51-3 (CH3)2CHCH2CH2OH 200 - 250 -  
Isobutanol [isobutyl alcohol] 78-83-1 (CH3)2CHCH2OH 100 - - -  
Isooctyl alcohol 26952-21-6 C8H17OH 100 - - - SKIN
Isophorone 78-59-1 C9H14O - - 10 -  
Isophorone diisocyanate [IPDI] 4098-71-9 C12H18N2O2 0, 01 - - -  
Isopropyl acetate 108-21-4 CH3COOCH(CH3)2 200 - 400 -  
Isopropyl benzene 98-82-8 C6H5CH(CH3)2     See cumene    
Isopropyl ether 108-20-3 (CH3)2CHOCH(CH3)2 500 - 620 -  
Isopropyl glycidyl ether [IGE] 4016-14-2 C6H12O2 100 - 150 -  
K              
Ketene 463-51-4 CH2=CO 1 - 3 -  
L              
Liquefied petroleum gas [LPG] 68476-85-7 Mixture: C3H6; C3H8; C4H10; C4H8 - Asphyxiant - -  
Lithium hydride 7580-67-8 LiH - - - 0,1  
M              
Magnesium oxide [as MgO] 1309-48-4 MgO - 10 - -  
Malathion 121-75-5 C10H19O6PS2 - 2(IFV) - - CARC, SKIN
Maleic anhydride 108-31-6 C4H2O3 - 0,02(IFV) - - DSEN, RSEN
Manganese 7439-96-5 Mn          
inorganic compounds [as Mn] - - - 0, 2 - -  
elemental - - - 0,04(R) - -  
Manganese cyclopentadienyl tricarbonyl [as Mn] 12079-65-1 C5H5Mn(CO)3 - 0, 2 - - SKIN
Mercaptoacetic acid 68-11-1 hsch2cooh 2 - - - SKIN
Mercury and divalent inorganic mercury compounds, including mercuric oxide and mercuric chloride [as Hg] 7439-97-6 Hg          
Alkyl compounds     - 0,02 - 0,06 CARC, SKIN
Aryl compounds     - 0,2 - - SKIN
Elemental and inorganic forms     - 0, 05 - - SKIN
Mesityl oxide 141-79-7 (CH3)2C=CHCOCH3 30 - 50 -  
Methacrylic acid 79-41-4 CH2=C(CH3)COOH 40 - - -  
Methanol [methyl alcohol] 67-56-1 CH3OH 400 - 500 - SKIN
Methomyl 16752-77-5 C5H10N2O2S - 0,4(IFV) - - SKIN
Methoxychlor 72-43-5 (C6H4OCH3)2CHCCI3 - 10 - -  
l-Methoxypropan-2-ol 107-98-2 ch3chohch2och3     See propylene glycol monomethyl ether    
Methyl acetate 79-20-9 CH3COOCH3 400 - 500 -  
Methyl acrylate 96-33-3 CH2=CHCOOCH3 4 - - - DSEN, SKIN
Methylacrylonitrile [methacrylonitrile] 126-98-7 CH2=C(CH3)CN 2 - - - SKIN
Methylal 109-87-5 CH2(OCH3)2 2000 - - -  
Methylamine 74-89-5 CH3NH2 10 - 30 -  
Methyl n-amyl ketone 110-43-0 CH3CO(CH2)4CH3 100 - - -  
N-Methylaniline 100-61-8 C6H5NHCH3 1 - - - SKIN
Methyl bromide 74-83-9 CH3Br 2 - - - SKIN
Methyl-n-butyl ketone 591-78-6 CH3CO(CH2)3CH3 10 - 20 - SKIN
Methyl chloride 74-87-3 CH3CI 100 - 200 - SKIN
Methyl chloroform 71-55-6 CH3CCI3     See 1, 1, 1- trichloroethane    
Methyl 2-cyanoacrylate 137-05-3 CH2=C(CN)COOCH3 0,4 - - -  
Methyl ethyl ketone [MEK] 78-93-3 CH2COC2H5 400 - 600 - SKIN
Methylcyclohexane 108-87-2 CH3C6H11 800 - - -  
Methylcyclohexanol 25639-42-3 CH3C6H10OH 100 - - -  
2-Methylcyclohexanone 583-60-8 CH3CHCO(CH2)3CH2 100 - 150 - SKIN
Methylene bis(4- Cyclohexylisocyanate) 5124-30-1 CH2[(C6H10)NCO]2 0,01 - - -  
Methylcyclopentadienyl manganese tricarbonyl [as Mn] 12108-13-3 CH3C5H4Mn(CO)3 - 0,4 - - SKIN
4,4'-Methylenebis(2-chloroaniline) [MbOCA] 101-14-4 CH2(C6H4CINH2)2     See 2,2'-dichloro- 4,4'-methylene dianiline [MbOCA]    
Methylene chloride 75-09-2       See dichloromethane    
4,4'-Methylenedianiline [MDA] 101-77-9 CH2(C6H4NH2)2 0, 2 - - -  
4,4'-Methylene-diphenyl diisocyanate [MDI] 101-68-8 CH2(C6H4NCO)2 0, 01 - - -  
Methyl formate 107-31-3 HCOOCH3 100 - 200 - SKIN
Methyl hydrazine 60-34-4 CH3NHNH2 0,02 - - - SKIN
Methyl iodide 74-88-4 CH3I     See iodomethane    
Methyl isoamyl ketone 110-12-3 C7H140 40 - 100 - SKIN
Methyl isobutyl carbinol [4-Methylpentan-2-ol] 108-11-2 C6H140 50 - 80 - SKIN
Methyl isobutyl ketone [MIBK] 108-10-1 CH3COCH2CH(CH3)2 40 - 150 - CARC, SKIN
Methyl isocyanate [MIC] 624-83-9 CH3NCO 0, 04 - 0, 12 - DSEN, RSEN, SKIN
Methyl mercaptan 74-93-1 CH3SH 1 - - -  
Methyl methacrylate 80-62-6 CH2=C(CH3)COOCH3 100 - 200 - DSEN
Methyl parathion 298-00-0 C8HioNO5PS - 0,04(IFV) - - SKIN
Methyl propyl ketone 107-87-9 CH3(CH2)2COCH3 - - 300 -  
Methyl silicate 681-84-5 (CH3O)4Si 2 - - -  
alpha-Methyl styrene 98-83-9 C6H5C(CH3)=CH2 20 - - - CARC
Mevinphos 7786-34-7 C7H13PO6     See phosdrin    
Mica 12001-26-2   - 6(R) - -  
Molybdenum compounds [as Mo]' 7439-98-7 Mo          
Soluble compounds - - - 1(R) - -  
Metal and insoluble compounds, total particulate - - - 10 - -  
Metal and insoluble compounds - - - 5(R) - -  
Monochloroacetic acid 79-11-8 CICH2CO2H 1(IFV) - - - SKIN
Morpholine 110-91-8 C4H9NO 40 - - - SKIN
N              
Naled 300-76-5 C4H7Br2CbO4P - 0,2(IFV) - - DSEN, SKIN
Naphthalene 91-20-3 C10H8 20 - - - CARC, SKIN
Nickel and its inorganic compounds [as Ni] 7440-02-0            
Elemental     - 3 - - CARC, SKIN
Nickel carbonyl [as Ni] 13463-39-3 Ni(CO)4 - - 0,1 - CARC
Nickel, subsulphide [as Ni] 12035-72-2 Ni3S2 - 0,2 - - CARC
Nicotine 54-11-5 C10H14N2 - 1 - - SKIN
Nitrapyrin 1929-82-4 CIC5H3NCCI3 - 10(IFV) - 20  
Nitric acid 7697-37-2 HNO3 4 - 8 - CARC
Nitric oxide 10102-43-9 NO     See nitrogen monoxide    
4-Nitroaniline [p-nitroaniline] 100-01-6 NO2C6H4NH2 - 6 - - SKIN
Nitrobenzene 98-95-3 C6H5NO2 2 - - - CARC, SKIN
P-Nitrochlorobenzene 100-00-5 CIC6H4NO2 0,2 - - -  
Nitroethane 79-24-3 C2H5NO2 200 - - -  
Nitrogen monoxide 10102-43-9 NO 50 - - -  
Nitrogen dioxide 10102-44-0 NO2 0,4 - - -  
Nitrogen trifluoride 7783-54-2 NF3 20 - - -  
Nitroglycerine [NG] 55-63-0 CH2NO3CHNO3CH2NO3 0,1 - - - SKIN
Nitromethane 75-52-5 CH3NO2 40 - - - CARC
I-Nitropropane 108-03-2 C3H7NO2 50 - - -  
2-Nitropropane 79-46-9 (CH3)2CH(NO2) 20 - - - CARC
Nitrotoluene, all isomers 88-72-2; 99-08-1; 99-99-0 CH3C6H4NO2 4 - - - SKIN
Nitrous oxide 10024-97-2 N2O 100 - - -  
O              
Octachloronaphthalene 2234-13-1 C10CI8 - 0,2 - 0,6 SKIN
Osmium tetroxide [as Os] 20816-12-0 OsO4 0,0004 - 0,0012 -  
Oxalic acid 144-62-7 COOHCOOH.2H2O - 2 - 4  
Ozone 10028-15-6 O3          
Heavy work     0,1 - - -  
Moderate work     0,16 - - -  
Light work     0,2 - - -  
Heavy, moderate or light workloads (< 2hrs)     0,4 - - -  
P              
Paraffin wax fume 8002-74-2 - - 4 - -  
Parathion 56-38-2 (C2H5O)2PSOC6H4NO2 - 0, 1(IFV) - - CARC, SKIN
Particles not otherwise specified [PNOS] - -          
Total particulate - - - 10 - -  
  - - - 5(r) - -  
Pentachlorophenol 87-86-5 C6CI5OH - 1(IFV) - 2 CARC, SKIN
Pentaerythritol 115-77-5   - 10 - -  
Pentane, all isomers 78-78-4;109-66-0;463-82-1 C5H12 2000 - - -  
Pentyl acetate, all isomers 628-63-7;626-38-0;123-92-2;625-16-1;624-41-9;620-11-1 CH3COO(CH2)4CH3 100 - 200 -  
Perchloryl fluoride 7616-94-6 CIFO3 6 - 12 -  
Persulphates, as persulfate   SO5∕S2O8 - 0, 2 - -  
Phenol 108-95-2 C6H5OH 10 - - - SKIN
P-Phenylenediamine 106-50-3 C6H4(NH2)2 - 0, 2 - - SKIN
Phenyl ether 101-84-8 C6H5OC6H5 2 (v) - 4 -  
Phenyl glycidyl ether [PGE] 122-60-1 C6H5OCH2CHOCH2 0, 2 - - - CARC, DSEN, SKIN
Phenylhydrazine 100-63-0 C6H5NHNH2 0, 2 - - - SKIN
Phenyl mercaptan 108-98-5 C6H5SH 0, 2 - - - SKIN
2-Phenylpropene 98-83-9 C6H5C(CH3)=CH2     See alpha-methyl styrene    
Phorate 298-02-2 C7H17O2PS3 - 0,1(IFV) - - SKIN
Phosdrin 7786-34-7 C7H13PO6 - 0,02(IFV) - - SKIN
Phosgene 75-44-5 COCI2 0, 2 - - -  
Phosphine 7803-51-2 PH3 0,1 - 0, 3 -  
Phosphoric acid 7664-38-2 H3PO4 - 2 - 6  
Phosphorus oxychloride 10025-87-3 POCI3 0, 2 - - -  
Phosphorus pentachloride 10026-13-8 PCI5 0, 2 - - -  
Phosphorus pentasulphide 1314-80-3 P2S5/P4S10 - 2 - 6  
Phosphorus trichloride 7719-12-2 PCI3 0, 4 - 1 -  
Phthalic anhydride 85-44-9 C6H4(CO)2O 0,004(IFV) - 0, 01 - DSEN, RSEN
Picloram 1918-02-1 C6H3CI3N2O2 - 10 - -  
Picric acid 88-89-1 (NO2)3C6H2OH - 0, 2 - -  
Piperazine and salts [as Piperazine] 110-85-0 C4H10N2 0,06(IFV) - - - DSEN, RSEN
Platinum              
Metal 7440-06-4 Pt - 1 - -  
Soluble salts [as Pt] - - - 0, 002 - - DSEN, RSEN
Polyvinyl chloride [PVC] - - - 2 (R) - -  
Potassium hydroxide 1310-58-3 KOH - - - 4  
n-Propanol [n-propyl alcohol] 71-23-8 CH3CH2CH2OH 200 - - - SKIN
2-Propanol [propan-2-ol] 67-63-0 (CH3)2CHOH 400 - 800 -  
Propargyl alcohol [2- propyn-l-ol] 107-19-7 HCeCCH2OH 2 - - - SKIN
Propionic acid 79-09-4 CH3CH2COOH 20 - - -  
Propoxur 114-26-1 C11H15NO3 - 1(IFV) - -  
n-Propyl acetate 109-60-4 CH3COOC3H7 200 - 300 -  
Propylene glycol dinitrate [PGDN] 6423-43-4 CH3CHONO2CH2ONO2 0,1 - - - SKIN
Propylene glycol monomethyl ether 107-98-2 ch3chohch2och3 100 - 200 - SKIN
Pyrethrum 8003-34-7 - - 10 - -  
Pyridine 110-86-1 C5H5N 2 - - -  
Pyrocatechol 120-80-9 C6H4(OH)2 5 20 - -  
Q              
Quinone 106-51-4 C6H4O2     See p- benzoquinone    
Quintozene 82-68-8 C6CI5NO2     See pentachloronitro benzene    
R              
Resorcinol 108-46-3 C6H4(OH)2 20 - 40 - SKIN
Rhodium              
Metal and insoluble compounds [as Rh] 7440-16-6 Rh - 2 - -  
Soluble compounds [as Rh]     - 0, 02 - - DSEN
Rosin core solder thermal decomposition products [colophony] 8050-09-07 - Exposure by all routes should be carefully controlled to ALARP  
S              
Selenium and compounds, except hydrogen selenide [as Se] 7782-49-2 Se - 0, 4 - -  
Silicon carbide 409-21-2 SiC          
Total particulate (nonfibrous) - - - 10 (I,E) - - CARC
Respirable particulate (nonfibrous) - - - 5(R) - - CARC
Fibrous (including whiskers)     - 0,1f/ml(F) - - CARC
Silicon tetrahydride [silane] 7803-62-5 SiH4 10 - - -  
Silver              
Metal 7440-22-4 Ag - 0,2 - -  
Soluble compounds [as Ag] - - - 0, 02 - -  
Sodium azide 26628-22-8 NaN3 - - - 0,6 SKIN
Sodium 2, 4- dichlorophenoxy ethyl sulphate [2, 4-DES], [sesone] 136-78-7 C8H7CI2NaO5S   10     CARC
Sodium fluoroacetate 62-74-8 CH2FCOONa - 0,1 - - SKIN
Sodium hydrogen sulphite [sodium bisulphite] 7631-90-5 NaHSO3 - 10 - -  
Sodium hydroxide 1310-73-2 NaOH - - - 4  
Sodium metabisulphate 7681-57-4 Na2S205 - 10 - -  
Starch 9005-25-8 - - 10 - -  
Stibine [antimony hydride] 7803-52-3 SbH3 0,2 - - -  
Strychnine 57-24-9 C21H22N2O2 - 0,3 - -  
Subtilisins (proteolytic enzymes as 100% pure crystalline enzyme) 1395-21-7, 9014-01-1 - - - - 0, 00012 RSEN
Sucrose 57-50-1 C12H22O11 - 10 - -  
Sulfotep 3689-24-5 [(CH3CH2O)2PS]2O - 0,2(IFV) - - SKIN
Sulphur dioxide 7446-09-5 SO2 - - 0,5 -  
Sulphur hexafluoride 2551-62-4 SF6 2000 - - -  
Sulphuric acid (mist) 7664-93-9 H2SO4 - 0,4(T) - - CARC
Sulphur monochloride 10025-67-9 S2CI2 - - 2 -  
Sulphur pentafluoride 5714-22-7 S2F10 - - 0,02 -  
Sulphur tetrafluoride 7783-60-0 SF4 - - 0,2 -  
Sulphuryl fluoride [sulphuryl difluoride] 2699-79-8 SO2F2 10 - 20 -  
Synthetic vitreous fibres [SVF]: - -          
Continuous filament glass fibres - - - 2f/ml(F) - -  
Continuous filament glass fibres     - 10 - -  
Glass wool fibres - - - 2f/ml(F) - -  
Rock wool fibres - - - 2f/ml(F) - -