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Health Ir and Safety Aspects of Refractory Fibers PLAINTIFF'S EXHIBIT AL-1660 ALCOA0000008421 Refractory fiber is an important member of a family of fibrous products known collective^ as man-made vitreous fibers (MMVF) because of their synthetic amorphous, glassy nature.

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NO. 98-748-A GEORGE DOLEZAL, ET AL., Plaintiffs, VS.

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Castleman File: American Petroleum Institute w/c = with cover letter or memo If DATE = 0, undated CD-ROM Document #:API DATE ^ published article from trade journal published advertisements newspaper article published government report government inspection results unpublished or internal report unpublished presentation from conference letter memorandum industry warning labels industry sales literature industry recommended practices meeting minutes (with attachments) membership list BC notes Medical Advisory Committee Reports and Publications 19^3 - 1955 t'"*\ API 07813 Consents, 1.

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ASARCO ALV 0000122 ASARCO ALV 0000123 Production Asbestos fiber, silica, and Portland cement are tne three essential ingre dients of asbestos-cement (A C) pipe.

AT&T Asbestos Awareness Course #600519 RECOGNIZING SUSPECT ASBESTOS MATERIALS (Continued) DAMAGE AND DETERIORATION HOW ASBESTOS CAN BE DAMAGED OR MADE FRIABLE Physical contact Cutting, sanding, breaking or otherwise abrading Deterioration through: Vibration Water Damage Air movement Delamination (separation from the backing) HOW TO RECOGNIZE DETERIORATION Look for: Frayed material Surface changes Dust or debris below or down wind Material in airstreams Material fastened to vibrating machinery Evidence of water leaks 11 ATT-NJ-DEG-0077598

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