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The Control of Substances Hazardous to Health Regulations 1988
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- UK Statutory Instruments
- 1988 No. 1657
- SCHEDULE 1
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Regulations 2(1), 7(4) and 12(2)
SCHEDULE 1LIST OF SUBSTANCES ASSIGNED MAXIMUM EXPOSURE LIMITS
| Reference periods | |||||
|---|---|---|---|---|---|
| Long-term maximum exposure limit (8-hour TWA reference period) | Short-term maximum exposure limit (10-minute reference period) | ||||
| ppm | ppm | ||||
| Substance | Formula | mg m—3 | mg m—3 | ||
* Limit relates to cyclohexane soluble material | |||||
† Vinyl chloride is also subject to an overriding annual maximum exposure limit of 3 ppm. | |||||
| Acrylonitrile | CH2=CHCN | 2 | 4 | — | — |
| Arsenic & compounds, except arsine and lead arsenate (as As) | As | — | 0.2 | — | — |
| Buta—1, 3—diene | CH2=CHCH=CH2 | 10 | — | — | — |
| 2—Butoxyethanol | C4H9OCH2CH2OH | 25 | 120 | — | — |
| Cadmium & 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 | — | — |
| 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 | C2H5OCH2CH2OOCCH3L | 10 | 54 | — | — |
| Ethylene dibromide | BrCH2CH2Br | 1 | 8 | — | — |
| Ethylene oxide | CH2CH2O | 5 | 10 | — | — |
| Formaldehyde | HCHO | 2 | 2.5 | 2 | 2.5 |
| Hydrogen cyanide | HCN | — | — | 10 | 10 |
| Isocyanates, all (as—NCO) | — | 0.02 | — | 0.07 | |
| Man-made mineral fibre | — | 5 | — | — | |
| 1—Methoxypropan—2—ol | CH3OCH2CHOHCH3 | 100 | 360 | — | — |
| 2—Methoxyethanol | CH3OCH2CH2OH | 5 | 16 | — | — |
| 2—Methoxyethyl acetate | CH3COOCH2CH2OCH3 | 5 | 24 | — | — |
| Rubber Process Dust | — | 8 | — | — | |
| *Rubber Fume | — | 0.75 | — | — | |
| 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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