(Drislane - Purcell) 53 1 that's the way it was.

PLAINTIFF'S EXHIBIT <l69999GiS OWl P TOXIC HAZARDS* Asbestos-!

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PLAINTIFFS EXHIBIT DUP-525 SPECIFICATION NO. 3405 FIRE RESISTANT INSULATION FOR TANKS, PIPE AND STRUCTURAL STEEL SUPPORTING PROCESS PIPING r J1 PROJECTS 2154 AND 241<f JULY 7, 1953 i APPROVED BY: Design Division ' Date Design Division _______________ Date S.

...Ag~UI_ ill --II1 TiT OFFICE COrnESPONEBBTCE LtDISIAHA aiVltltH A T IV ft DCS. t A.

V # 11 FFR30ML AMD C0KFXD5MTIAL fP; 3.

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I % 0 MODERN PLANT SURVEY.............. . .

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IIOperation SUB-ZErI Provi Efficient and Economical Bird Steam Plant shows 11,400 BtupM kwh station output for all purposes Cross MCI ton of the Foiler fFheetar ilngto-dmm utam gentrator for the Frank IP.

More'* rattl economy In temperature control* Because Spence Temperature Regulators are designed to limit heater steam pressures to an adjustable maximum, the need for a separate' reducing valve is completely eliminated..

In the unique EVERLASTING Valve, the disc never leaves the seat, even when the valve is full open.

OFFICERS Pr~sidtnl Karl Schwartzwalder Flint, Mich.

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V The ACTIVITIES and MEMBERS Of Industrial Hygiene Foundation MELLON INSTITUTE, 4400 FIFTH AVENUE PITTSBURGH 13, PA. 1954 --ss!