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RESPIRATOR WORKPLACE PROTECTION FACTORS FOR ASBESTOS SUMMARY AND BACKGROUND Workplace protection factors for elastomeric and single use half-mask respirators were measured during asbestos removal operations.

PLAINTIFF'S EXHIBIT DUP-1052 TABLE 2 CONSTRUCTION MATERIALS (OTHER THAN INSULATION) WHICH WERE OR MAY HAVE BEEN USED AT NEWPORT PLANT 1970 - 1980 Standard SB7D SP710U Description Corrugated and V-beam plastic panels Haveg piping SP718U Bonstrand 4000 piping U2A U1C Gasketing and packing None None Vinyl asbestos floor tile Tar saturated asbestos felt Comments Transite siding (1) A design eng. who worked on Newport projects believes it was used - not in pipe specifications. (1) In pipe specifications.

PLAINTIFF'S EXHIBIT DUP-108S cx-arri OacnirtiOM Lbs. 3A6" Du?

T H IS D O C U M fe N T IS T H P R O P E R T V O F E .

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ENGINEERING STANDARD MEASUREMENT AND CONTROL OF AS8EST0S OUST EXPOSURE iBkWteO this p At P C Vi SCO 1 TANO APO PCAFP'RMCO APRIL 1973 OCT 1979 OCT 1979 S4T Pag* 1 of 6 Ttu* uanttard includes requirements at ine Occupational Safety and Health Act at 1970 (OSHA) at pubtianed in the Federal Register.

PLAINTIFF'S EXHIBIT DUP-1527 *'*e following rem-arxs should Oe ccrnnun; ca ted t; all employees :: r.:-.

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