Occupational Health, Safety and Welfare Amendment Regulations (No.2) 1991 Jurisdiction Australia - Western Australia Year 1991 Published in English Serial title Government Gazette of Western Australia Source 29 May 1992, No.72, p.2220-2221. Descriptors [Primary] Australia, TLV list, Western Australia, dangerous substances, limitation of exposure [Secondary] law, respirable dust, silica, vinyl chloride Subject category Chemical safety Abstract These regulations modify the Occupational Health, Safety and Welfare Regulations 1988 (see CIS 90-1410). Schedule 3 of the 1988 Regulations is repealed, and the atmospheric exposure standards specified in Worksafe Australia's National Exposure Standards (CIS 92-1296) are introduced into Western Australian legislation (with special 8h-TWA values for vinyl chloride - 1ppm of air by vol.; and for respirable quartz - 0.1mg/m3 of air). For inspirable or respirable dust not within the scope of the National Standards, 8h-TWA exposure limits of 10mg/m3 of air for inspirable dust, and of 5mg/m3 of air for respirable dust are set. Some other minor changes in the Regulations are made. CIS No. 94-425 Database ID 62037