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The Control of Substances Hazardous to Health (Amendment) Regulations 1992
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- UK Statutory Instruments
- 1992 No. 2382
- SCHEDULE 2
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Regulation 2(2)
SCHEDULE 2SCHEDULE TO BE SUBSTITUTED AS SCHEDULE 1 TO THE PRINCIPAL REGULATIONS
Regulations 2(1), 7(4) and 12(2)
SCHEDULE 1LIST OF SUBSTANCES ASSIGNED MAXIMUM EXPOSURE LIMITS
The maximum exposure limits of the dusts included in the list below refer to the total inhalable dust fraction, unless otherwise stated.
| Reference periods | |||||
|---|---|---|---|---|---|
| Long-term maximum exposure limit (8-hour TWA reference period) | Short-term maximum exposure limit (10-minute reference period) | ||||
| Substance | Formula | 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 ml−1, 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 | 5 | 16 | — | — |
| Bischloromethyl) ether | ClCH2OCH2Cl | 0.001 | 0.005 | — | — |
| 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(C6H3C1NH2)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 |
| Isocyanates, 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 | 1050 |
| 1,1,1—Trichloroethane | CH3CCl3 | 350 | 1900 | 450 | 2450 |
| Trichloroethylene | CCl2=CHCl | 100 | 535 | 150 | 802 |
| ‡Vinyl chloride | CH2=CHCl | 7 | — | — | — |
| Vinylidene chloride | CH2=CCl2 | 10 | 40 | — | — |
| Wood dust (hard wood) | — | 5 | — | — | |
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