Schedule THE SCHEDULE TO BE SUBSTITUTED AS SCHEDULE 1 TO THE PRINCIPAL REGULATIONS
“SCHEDULE 1
LIST OF SUBSTANCES ASSIGNED MAXIMUMEXPOSURE LIMITS
Regulations 2(1), 7(6) and 12(2)
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(15-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 4.4 — — Antimony & antimony compounds except stibine (as Sb) Sb — 0.5 — — Arsenic & compounds except arsine (as As) As — 0.1 — — Azodicarbonamide C2H4N4O2 — 1.0 — 3.0 Benzene C6H6 5 16 — — Beryllium and beryllium compounds (as Be) Be — 0.002 — — Bis(chloromethyl) ether ClCH2OCH2C1 0.001 0.005 — — Buta-1, 3-diene CH2=CHCH=CH2 10 22 — — Cadmium & cadmium compounds, exceptcadmium oxide fume,cadmium sulphide andcadmium sulphidepigments (as Cd) Cd — 0.025 — — Cadmium oxide fume(as Cd) CdO — 0.025 — 0.05 Cadmium sulphide andcadmium sulphidepigments (respirabledust as Cd) CdS — 0.03 — — Carbon disulphide CS2 10 32 — — 1-Chloro-2,3-epoxypropane (Epichlorohydrin) OCH2-CH-CH2Cl 0.5 1.9 1.5 5.8 Chromium (VI) compounds (as Cr) Cr — 0.05 — — Cobalt and cobalt compounds (as Co) Co – 0.1 — — Cotton dust — 2.5 — — 1,2-Dibromoethane (Ethylene dibromide) BrCH2CH2Br 0.5 3.9 — — 1,2-Dichloroethane (Ethylene dichloride) ClCH2CH2Cl 5 21 — — Dichloromethane CH2Cl2 100 350 300 1060 2,2'-Dichloro-4,4' -methylene dianiline (MbOCA) CH2(C6H3ClNH2)2 — 0.005 — — Diethyl sulphate C4H10O4S 0.05 0.32 — — Dimethyl sulphate C2H6O4S 0.05 0.26 — — 2-Ethoxyethanol C2H5OCH2CH2OH 10 37 — — 2-Ethoxyethyl acetate C2H5OCH2CH2OOCCH3 10 55 — — Ethylene oxide CH2CH2O 5 9.2 — — Ferrous foundry particulate total inhalable dust — 10 — — respirable dust — 4 — — Formaldehyde HCHO 2 2.5 2 2.5 Grain dust — 10 — — Halogeno-platinum compounds (complex co-ordination compounds in which the platinum atom is directly co-ordinated to halide groups) (as Pt) — 0.002 — — Hardwood dust — 5 — — Hydrazine N2H4 0.02 0.03 0.1 0.13 Hydrogen cyanide HCN — — 10 11 Iodomethane CH3I 2 12 — — Isocyanates, all (as -NCO) — 0.02 — 0.07 Maleic anhydride C4H2O3 — 1 — 3 Man-made mineral fibref1 — 5 — — 2-Methoxyethanol CH3OCH2CH2OH 5 16 — — 2-Methoxyethyl acetate CH3COOCH2CH2OCH3 5 25 — — 4,4'-Methylenedianiline CH2(C6H4NH2)2 0.01 0.08 — — 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 — — 2-Nitropropane CH3CH(NO2)CH3 5 19 — — Phthalic anhydride C8H4O3 — 4 — 12 Polychlorinated biphenyls (PCB) C12CH(10−×)Cl× — 0.1 — — Propylene oxide C3H6O 5 12 — — Rubber fumef2 — 0.6 — — Rubber process dust — 6 — — Silica, respirable crystalline SiO2 — 0.3 — — Softwood dust — 5 — — Styrene C6H5CH=CH2 100 430 250 1080 o-Toluidine CH3C6H4NH2 0.2 0.89 — — Trichloroethylene CCl2=CHCl 100 550 150 820 Triglycidyl isocyanurate (TGIC) C12H15N3O6 — 0.1 — — Trimellitic anhydride C9H4O5 — 0.04 — 0.12 Vinyl chloridef3 CH2=CHCI 7 — — — Vinylidene chloride CH2=CCl2 10 40 — — Wool process dust — 10 — — ”
Annotations
Footnotes
- f1
*
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.
- f2
**
Limit relates to cyclohexane soluble material.
- f3
***
In addition to the maximum exposure limit specified above vinyl chloride is also subject to an overriding annual exposure limit of 3 ppm.