FILE NAME: Mine Safety Appliances (MSA) DATE: 0000 DOC#: MSA019 DOCUMENT DESCRIPTION: Book - Pertinent Questions & Answers Concerning Dusts 60Z0S0 OS % 00/ Foreword T h e r e is an increasingly wide and intense interest in harmful effects of breathing dusts, especially those that contain free silica and cause the disease of the lungs known as silicosis- Interest has been further stimulated by the work of Federal agencies and States in industrial hygiene, and by legislation that provides compensation for injury to health.

FILE NAME Bechtel BECH DATE 0000 DOC BECH003 DOCUMENT DESCRIPTION Industry Sales Literature MAZEMENSAMM MAZEMENSAMM DAMAGE DAMAGE PREVENTION -- th in the field BY COATING PIPE with semastic pipe coating corrosion damage can be prevented before it starts Long range experience has demonstrated under the most severe fests in highly corrosive locations for already known periods of eighteen years that this impervious coating has proved the staying quality of this protection AUTHENTIC RECORDS established in the A.P.I. year pipe coating tests and on thousands of miles of operating lines have furnished conclusive evidence of the effectiveness of this coating Somastic pipe coating is a special mix- ture of asphalt mix mastic compounded to rigid specifications and firmly bonded to the pipe as a thick seamless coating ~_ Overlapping field joints of the same mixture make this protection continuous along the pipe line SOMASTIC PI7 PE99 C5 OATING ee paktikas darba Portable Somastic Plant and Priming Priming Railhead Plost Set Up wine Coating Primed Pipe Initial Operation 7 : sheet soa 5 acne a ne ae * a 2s M1 enna RE rar i Prv Pat C _

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FILE NAME: Asbestos Cement Pipe and Sheet (ACPS) DATE: DOC#: ACPS0 KhMENT DESCRIPTION:hZZ - Dust Exposures During the Cutting and Machining of Asbestos/Cement Pipe - Additional Studies OUST EXPOSURES DURH;G THE CUTTING AND MACHINING OF ASBESTOS/CEMENT PIPE ADDITIONAL STUDIES - DUST EXPOSURES DURING THE CUTTING AND MACHINING OF ASBESTOS/CEMENT PIPE ADDITIONAL STUDIES Prepared for The A/C Pipe Producers Association 1600 Wilson Boulevard Suite 1308 Arlington, Virginia 22209 Prepared by Equitable Environmental Health, Inc. 2020 Milvia Street Berkeley, California 94704 December 15, 1977 INTRODUCTION On March 16, 1977, Equitable Environmental Health, Inc., submitted a draft report to the A/C Pipe Producers Association which provided quantitative data on dust exposures during field operations in which sewer and pressure pipe were subjected to a number of typical field cutting and machining operations.

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