Document YDG8jE9nReka8O8Q803yK4X8D

Results of: Airborne Lead Method of Collection: Vacuum pumps with filter paper cones. Method of Analysis: Dithizone method. Read on Beckman Spectrophotometer. Date Sample Mo Location Results* H.G.* Wet Mix Ling; 11/1/62 1. 5 Min. Breathing zone of operator, wet mix line during weighing operation. 2. 5 Min. Breathing zone of operator, wet mix line during weighing operation. 3. 15 Min. Operator's breathing zone while the operator was removing lead from a tote pan to hopper using an industrial vacuum cleaner. 4. 2 Min. Taken at the discharge end of the vacuum cleaner used in loading lead into the hopper on the wet mix weigh line. Book Press Pre-Formine: 11/2/62 5* 10 Min. Taken in breathing zone of the operator of the book press pre forming machine Mo.2. 6. 10 Min. Taken in the breathing zone of the operator of machine No.l in the book press pre-forming. 7. 10 Min. Taken at the same place as Mo.6 sample. 8. 10 Min. Taken in the breathing zone of the operator of the book press pre-forming machine No.9 Block Press Pre-Forminp 9. 12 Min. Taken in the breathing zone of the operator of the block press pre-forming machine No.3* 53.1 01.5 03.8 262.4 01.1 02.4 01.3 01.9 00.8 2 2 2 2 2 2 2 2 2 Results and Hygienic Guide given in milligrams of Lead per 10 cubic meters. ------------------------- LIBERTY MUTUAL INSURANCE COMPANY------------------------- -- SPNY 007337