Regulation respecting asbestos - made under the Occupational Health and Safety Act Jurisdiction Canada - Ontario Year 1987 Published in English Source Ontario Government Bookstore, Publications Services Section, 5th Floor, 880 Bay St., Toronto M7A 1N8, Ont., Canada, 1987. 56p. Serial number Ontario Regulation 570/82 Descriptors [Primary] Canada, Ontario, asbestos, limitation of exposure, threshold limit values [Secondary] amosite, crocidolite, determination in air, directive, exposure tests, law, medical supervision, respirators, sampling and analysis Subject category Chemical safety Abstract This Regulation, as amended by Ontario Regulations 655/85 and 23/87, prescribes asbestos in all its forms as a designated substance. Exposure limits set for workplace air: TWA exposure - 0.5 fibres/cm3 (amosite), 0.2 fibres/cm3 (crocidolite), 1.0 fibre/cm3 (other asbestos); maximum concentration - 2.5 fibres/cm3 (amosite), 1.0 fibre/cm3 (crocidolite), 5.0 fibres/cm3 (other asbestos). Other aspects covered: responsibilities of employers; control programmes; monitoring; medical supervision; record keeping. Also included: code for respiratory equipment for asbestos; code for measuring airborne asbestos fibres; code for medical surveillance of asbestos-exposed workers. CIS No. 89-1089 Database ID 52247