Regulation respecting arsenic - made under the Occupational Health and Safety Act Jurisdiction Canada - Ontario Year 1987 Published in English Source Ontario Government Bookstore, Publication Services Section, 5th Floor, 880 Bay Street, Toronto M7A 1N8, Ont., Canada, 1987. 44p. Serial number Ontario Regulation 176/86 Descriptors [Primary] Canada, Ontario, arsenic, arsenic and compounds, limitation of exposure, threshold limit values [Secondary] determination in air, directive, exposure tests, law, medical supervision, respirators, sampling and analysis Subject category Chemical safety Abstract This Regulation, as amended by Ontario Regulation 23/87, prescribes arsenic (As) (including its organic compounds except arsine but not its organic compounds when no inorganic compounds are present) as a designated substance. Exposure limits set for workplace air: TWA exposure - 10ľg As/m3, short-term (15min) exposure - 50ľg As/m3. Other aspects covered: responsibilities of employers; control programmes; monitoring; record keeping; medical supervision. Also included: schedule for calculating TWA exposures; code for respiratory equipment for arsenic; code for measuring airborne arsenic. CIS No. 89-1423 Database ID 52629