# The Control of Substances Hazardous to Health (Amendment) Regulations 1991 S.I. 1991/2431 · made 15 October 1991 Made under: Health and Safety at Work etc. Act 1974 ## Introductory text HEALTH AND SAFETY Made 15th October 1991 Laid before Parliament 1st November 1991 Coming into force 1st January 1992 The Secretary of State in the exercise of the powers conferred on him by section 15(1) and (2) of, and paragraphs 1(1)(b) and 2 of Schedule 3 to, the Health and Safety at Work etc. Act 1974() (“the 1974 Act”) and of all other powers enabling him in that behalf and for the purpose of giving effect without modifications to proposals submitted to him by the Health and Safety Commission under section 11(2)(d) of the 1974 Act after the carrying out by the said Commission of consultations in accordance with section 50(3) of that Act, hereby makes the following Regulations:– ## 1 Citation, amendment and interpretation (1) These Regulations may be cited as the Control of Substances Hazardous to Health (Amendment) Regulations 1991 and shall come into force on 1st January 1992. (2) In these regulations, unless the context otherwise requires, “the principal Regulations” means the Control of Substances Hazardous to Health Regulations 1988(). ## 2 Amendment to the principal Regulations (1) At the end of regulation 4 of the principal Regulations there shall be inserted the following paragraph– “(4) A person shall not supply during the course of or for use at work, benzene or any substance containing benzene unless its intended use is not prohibited by item 11 of Schedule 2.”. (2) For Schedule 1 to the principal Regulations there shall be substituted the Schedule set out in Schedule 1 to these Regulations. (3) Schedule 2 to the principal Regulations shall be amended as follows– (a) in item 1 in column 1, for “exceeding 0.1 per cent” there shall be substituted “equal to or greater than 0.1 per cent.”; (b) at the end of the Schedule there shall be inserted the additional item set out in Schedule 2 to these Regulations. ## 3 Revocations The Control of Substances Hazardous to Health (Amendment) Regulations 1990() are revoked. ## Signature Signed by order of the Secretary of State. Eric Forth Parliamentary Under Secretary of State, Department of Employment 15th October 1991 ## Schedule 1 SCHEDULE TO BE SUBSTITUTED AS SCHEDULE 1 TO THE PRINCIPAL REGULATIONS SCHEDULE 1 LIST OF SUBSTANCES ASSIGNED MAXIMUM EXPOSURE LIMITS Regulations 2(1), 7(4) and 12(2) The maximum exposure limits of the dusts included in the list below refer to the toinhalable dust fraction, unless otherwise stated. Substance Formula Reference periods Long-term maximum exposure limit (8-hour TWA reference period) Short-term maximum exposure limit (10-minute reference period) ppm mg m−3 ppm mg m−3 *In addition to the maximum exposure limit specified above man-made mineral fibre is also subject to a maximum exposure limit of 2 fibres ml1, 8-hour TWA, when measured or calculated by a method approved by the Health and Safety Commission. †Limit relates to cyclohexane soluble material. ‡In addition to the maximum exposure limit specified above vinyl chloride is also subject to an overriding annual exposure limit of 3 ppm. Acrylamide CH2=CHCONH2 — 0.3 — — Acrylonitrile CH2=CHCN 2 4 — — Arsenic and compounds except arsine (as As) As — 0.1 — — Benzene C6H6 75 15 — — Buta-1,3-diene CH2=CHCH=CH2 10 22 — — 2-Butoxyethanol C4H9OCH2CH2OH 25 120 — — Cadmium and cadmium compounds, except cadmium oxide fume and cadmium sulphide pigments (as Cd) Cd — 0.05 — — Cadmium oxide fume (as Cd) CdO — 0.05 — 0.05 Cadmium sulphide pigments (respirable dust as Cd) CdS — 0.04 — — Carbon disulphide CS2 10 30 — — Chromium (VI) compounds (as Cr) Cr — 0.05 — — 1,2–Dibromoethane (Ethylene dibromide) BrCH2CH2Br 0.5 4 — — Dichloromethane CH2Cl2 100 350 — — 2,2'–Dichloro–4,4'–methylene dianiline (MbOCA) CH2(C6H3ClNH2)2 — 0.005 — — 2-Ethoxyethanol C2H5OCH2CH2OH 10 37 — — 2-Ethoxyethyl acetate C2H5OCH2CH2OOCCH3 10 54 — — Ethylene oxide CH2CH2O 5 10 — — Formaldehyde HCHO 2 2.5 2 2.5 Grain dust — 10 — — Hydrogen cyanide HCN — — 10 10 Isocyanate, all (as-NCO) — 0.02 — 0.07 Man-made mineral fibre — 5 — — 2-Methoxyethanol CH3OCH2CH2OH 5 16 — — 2-Methoxyethyl acetate CH3COOCH2CH2OCH3 5 24 — — Nickel and its inorganic compounds (except nickel carbonyl): Ni — — — — water-soluble nickel compounds (as Ni) — 0.1 — — nickel and water-insoluble nickel compounds (as Ni) — 0.5 — — Rubber process dust — 8 — — Rubber fume — 0.6 — — Silica, respirable crystalline SiO2 — 0.4 — — Styrene C6H5CH=CH2 100 420 250 1,050 1,1,1-Trichlorotehane CH3CCl3 350 1,900 450 2,450 Trichloroethylene CCl2=CHCl 100 535 150 802 Vinyl chloride CH2=CHCl 7 — — — Vinylidene chloride CH2=CCl2 10 40 — — Wood dust (hard wood) — 5 — — ## Schedule 2 ITEM TO BE INSERTED AT THE END OF SCHEDULE 2 TO THE PRINCIPAL REGULATIONS 1 2 Item No. Description of substance Purpose for which the substance is prohibited 11. Benzene and any substance containing benzene in a concentration equal to or greater than 0.1 per cent, other than (a) motor fuels covered by Council Directive 85/210/EEC (OJ No L96, 3.4.1985, p. 25) (b) waste covered by Council Directives 75/442/EEC (OJ No L194, 25.7.1975, p. 39) and 78/319/EEC (OJ No L84, 31.3.78, p. 43). Use for all purposes except use in industrial processes, and for the purposes of research, development and analysis. ## Explanatory note (This note is not part of the Regulations) 1 These Regulations amend the Control of Substances Hazardous to Health Regulations 1988 (“the principal Regulations”). 2 By amending regulation 4 of, and Schedule 2 to, the principal Regulations, regulation 2(1) of and Schedule 2 to these Regulations have effect to prohibit with certain exceptions the importation, supply and use at work of benzene and substances containing benzene, implementing as respects Great Britain point 3 of Article 1 of the Council Directive 89/677/EEC (“the 8th Amendment Directive”) (OJ No. L 398, 30.12.89, p. 19) amending for the 8th time Council Directive 76/769/EEC (OJ No. L 262, 27.9.76, p. 201) relating to restrictions on the marketing and use of certain dangerous substances and preparations in so far as that point relates to the importation, supply or use of benzene and substances containing benzene for such purposes. 3 Regulation 2(3) of these Regulations amends item 1 of Schedule 2 to the principal regulations to align its wording with that used in point 4 of Article 1 to the 8th Amendment Directive. 4 Regulation 2(2) of these Regulations substitutes a new Schedule for Schedule 1 to the principal Regulations. That Schedule prescribes maximum exposure limits of certain substances hazardous to health and new exposure limits for chromium, grain dust, nickel and silica are introduced by the Schedule. 5 Previous Regulations amending the principal Regulations are revoked by regulation 3 of these Regulations. --- Source: https://www.legislation.gov.uk/uksi/1991/2431 (the official version) Page: https://openlegislation.uk/control-of-substances-hazardous-to-health-amendment-regulations-1991 Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.