Urine collected on the fourth, fifth, and sixth days contained no detectable mercury, lead, arsenic, bismuth, antimony, selenium, or tellurium.

Willson GA2H M-S-A Lead-Foe and others

Asbestos also poses a difficult problem for the regulator in view 4 R 00003946 MMRE00Q12621 of the current technological limitations on measurement methodology coupled with the difficulties of determining precisely which physical or chemical characteristics of asbestos lead to unreasonable health hazards.

8C (-10SF) 472C (882F) 4r*22j by volume in air Exposure to vinyl chloride may occur in the manufacture of the monomer and also in the polymerisation process* Loading and unloading of tank ears and trucka*also represents an exposure risk* The polymerisation process is the main source of exposure especially when cleaning the poly merisation kettle* The- polymer usually contains unreacted VCM which is partially given off in' the drying'process, packaging operation and storage* Residual monomer may be given off during mixing, compounding and extrusion of--polyvinyl chloride* Excessive heat leads to decomposition of FVC and the.'

A-0 R9100 Dust Mask (Gray) - Used when making lead compounds in aillrooms.

Cesar Maltoni, director of the Institute of Oncology, Bologna, Italy, who has been cotu&cting much of the leading research on VC.

6, 3 3, / S' Page-3 JOS CLASSIFICATION &Warehouse Miscellaneous (cont'd): Boiler Operator Week Of J//<-/ Lead Operator Utility Man Yard Man & Service Man r7, 3,., A/ O , , 3 Personnel Exposure, ppm VCM Week Of ///// Week Of /, O.Z , 0.3L y.O/ . h d>,5-> O. 7 0- 7, 0-7 Page' 4 * COLORITE 013110 Office Staff: A Personnel Exposure, ppm VCM F.W.

I would l i k e t h e r e f o r e t o st a t e t he case o f our p r esen t n e ce ssit y o f r e t r i e v i n g as much as p o ssib le from t he ex per im ent al work on lead w it h which bot h o f us ar e now in v o lv ed .

"VCM - Tha OSHA Standard and Its Inter pretation" (Speaker to be announced) OSHA will discuss the background leading to the standard in existence after October S, 1974.

Process design in progress to lead to definitive estimate for AFE purposes by December, 1977.

Lead Operator Utility Man o.7> g.t-j .

M - 2 (No. 147) INDUSTRY AND AGRICULTURE <DBR> 7-29-76 Tht decision meiM that any bunea advertised for btd after February 15, 1977, must meet thin standard If The proposals would prohibit any discharge of PCBs by Industrie* manufacturing the chemical*.

Finally, even though it would take 10 years to pmttae. thfo prop eet would be outdated themmute it mm produtid bacataesfdte great advances in nwdkal and beakhknovriedga andin behnwarah social, and educational pracricesi This would lead So an unendbtg seri

"Legislation that could lead to eliminating Ml per cent of the causes of cancer in humans was approved unanimously by the Senate Commerce Committee. a" was the pitch.

biochemical processes, leading to a variety of unnatural symptoms.