APPENDIX B-l VACUUM METHOD From "Test Plan for Control of Fugitive Emissions from the Synthetic Organic Chemical Manufacturing Industry" Prepared for U.S.

Such a combination of the data for analysis might lead to bias.

Such a combination of the data for analysis might lead to bias.

Lead Transfer 10 g of the sample to an evaporating dish, add 5 ml of sulfuric acid solution (1 in 4), mixing it thoroughly with the sample, and evaporate most of the water on a steam bath.

Charges will be on an hourly basis at the following rotes which induce temperature recorder, thermocouples, thermocouple leads, resistoncc coils, insulation and wrapping materials.

iS.. .4iU4> -A .a ^, "liinnts?

r-------- ----------------------------------------------------------- DATE: Harch 1980 RE: ASBESTOS AND HEALTH .

Such a combination of the data for analysis might lead to bias.

** * k r* # Interoffice Communication To From Date Subject John D.

Both the OSHA permissible exposure limit (PEL) and the ACGIH thres hold limit value (TLV) are expressed as total organo-lead and not in terms of a specific organo-lead compound.

Such a combination of the data for analysis might lead to bias.

Coveralls were requested for personnel handling lead containing compounds.

The range where the suitable electrolyte systems were looked for was restricted to the leading electrolyte ofpH 3-5 with chloride as the leading ion and acetate as the terminating ion.

Lead Transfer 10 g of the sample to an evaporating dish, add 5 ml of sulfuric acid solution (1 in 4), mixing it thoroughly with the sample, and evaporate most of the water on a steam bath.

Environmental Health Perspectives Vol. 82, pp. 177-184, 1989 Metabolite-Based Internal Doses Used in a Risk Assessment of Benzene by A.