Document ppzbJexDa48Eb2p5z547NeEX

xlos-3'X.j.S'd PB89-122980 "1................... " SPECIAL ASBESTOS DUST $ PRELIMINARY INDUSTRIAL HYGIENE SURVEY ABEX CORPORATION American Brakeblok Division Winchester, Virginia WS-^3Z-2.ScL Survey Conducted By: John Dement Patrick Shuler Ralph Zumwalde Report Prepared By: John Dement Patrick Shuler Environmental Investigations Branch Division of Held Studies and Clinical Investigations National Institute for Occupational Safety and Health, 1014 Broacfoay Cincinnati, Ohio 45202 ______ _____ February 7-H, 1972 REPRODUCED BY U.S. DEPARTMENT OF COMMERCE NATIONAL TECHNICAL INFORMATION SERVICE SPRINGFIELD. VA 22161 _________ .__ ' 'v J