Regulation respecting lead - 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. 77p. Index. Serial number Ontario Regulation 536/81 Descriptors [Primary] Canada, Ontario, lead, lead and compounds, limitation of exposure, threshold limit values [Secondary] determination in air, determination in blood, determination in urine, directive, exposure evaluation, exposure tests, law, medical supervision, respirators, sampling and analysis, tetraethyllead Subject category Chemical safety Abstract This Regulation, as amended by Ontario Regulation 23/87, prescrbes lead (Pb) (including its inorganic and organic compounds) as a designated substance. Exposure limits set for workplace air: TWA exposure - 0.15mg Pb/m3 of air (except for tetraethyl lead), Tel, 0.10mg Pb/m3); short-term exposure (<15min, no more than 4 times in a workday, at least 60min apart each time) - 0.30mg Pb/m3 (except for TEL, 0.45mg Pb/m3). Other aspects covered: responsibilities of employers; exposure evaluation; control programmes; monitoring; medical supervision; record keeping. Also included: schedule for calculating TWA exposures; code for respiratory equipment for lead; codes for determining lead in blood, urine and air; code for medical surveillance. CIS No. 89-1421 Database ID 52627