Document p293M07peMpbJkabV3pnqnLxB

FILE NAME Owens Corning OC DATE 0000 DOC OC207 DOCUMENT DESCRIPTION Hygienic Guide Services on Asbestos (A s a) ~ act aatesten Peestse tases Le The The The Perr yercrys HYGIENIC GUIDE SEIRES .-' Hygient Guide Series e + Asbestos Asbestos / 1. Hygienic Standards A. RECOMMENDED MAXIMUM AT- MOSPHERIC CONCENTRATION S hours 5 million particles per cubic foot of air MPPCF 1 Basis for Recommendation Experi- ence in industry 41 and an- mal % experiments B. SEVERITY OF HAZARDS 1 Health Long continued inhalaton of asbestos dust results in a form of pneumocomosis known as bes- tosis The primary effect of al- WO 15 an interstitial pulmonary fibrosis The disease is characterized by asbestos bodies in the lungs and sputum Based on roentgenological examinations asbestosis can be class sified as minimal moderate and advanced It is a serious disease in some instances but more frequently it remains nordisabling for many years even without appreciable symptoms as long as some other senous disesse does not supervene to cause death Chief symptoms of advanced asbestos are variable cough dyspnea pas decreased absternal chest chest expansion weakness emaciation clubbed finger tips and curved fingernails Any appreciable decrease in the amount of asbestos dust in the breathing atmosphere w cause a decrease in the incidence and severity of asbestos Individual suceptibility vanes There have been reports of an increased incidence of lung can- cer in persons with asbestosis 2 Fire None C. SHORT EXPOSURE TOLERANCE Not applicable II Significant Properties A brousmagnesium calcium silicate which occurs in vanous combinations as white greyish or greenish masses either compact or of long silky fibers like and readily separated About 95 of commence asbes tos is chrysotile which is derived from serpentine and is a bydrous magnesium subcate containing from 12 to 14 per cent Pater of crystallization III Industrial Hygiene Pracuce A RECOGNITION The spinning and weaving of asbestos in combinator combinator with other textiles for fire proof and beat remstant cloth results in dust exposure It may be used by itself or combined with other materials for valve packings gaskets boiler lagging and pipe cover- ing protective clothing shelding mawhals and as automouve brake linings In the building industry it is used in the manufacture of asbestos cement products best insulating and fire- proofing matenals . B. EVALUATION OF EXPOSURES A- bestos dust may be sampled with the electrostatic precipitator or by the impinger impinger methed using alcobol or alcobol * and water as the collecung medium and dust counts made by the standard light feld technique The recommended maximum albospheric concentration of 5 MPPCF is based upon the impinger sampling procedure C. RECOMMENDED CONTROL PRO- CEDURES Prevezuot of asbestos depends entirely upon preventing ex- posure to concentrations of dust mafi ~ (C - C ( IY UCCED Hogokh tp Produce the Characes. Yezrsesueouogng. Exclosire Or logs! 2. Crnrien, are the characteris eCrheust Petr: AM Arch. CAS. high produce produce characteris characteris characteris of Canrieb Patz AMA Arch of of Zand, ciently to Enclosure characteris 4. Patz AMA Arch Arch Enclosure TV. ventilation the principal local exhaust OD as 11 of , ye. 8 ventilation Br dust control control respirators means respirators , Ind et al: Health B protection No. Bupt Bupt Public Public Health some protection Bulleur Doc W'a b- Procedures operations 1938 AID Cunoca! and radi D. . asp Industrial Industrial Node ina HATCH SPECIAL MEDICAL MEDICAL PROCEDURES PROCEDURES to Industrial 1 Preplacement Dust New 1954 Industrial LAWRENCE graphic chest examinations prior examinations its id LAWRENCE WilkinIndsustrial Indus: rig) should Williams Toncology Toncology Balumore 1957 Wilkins Wilkins Wiss * have periodic periodic symptoms of E. 1946 Md 1957 Thorax 188 Thorax , P. 265, E. asbes .: AMA K. (3) should include examj asbestosis Health .: 1855 AArrcchh Ind of Ind. MCPHEETERE nation chest rays quality and th- good Treatment Treatment satisfactory treat treat MCPHEETERE MCPHEETERE Ind 1936 Hyg Hyg 0 0 Toz 16 229 AND Ind satisfactory satisfactory from Treatment then ex- R. Repts BLOOMFIELD BLOOMFIELD Pub 62 0 0 Vv. posure Health FRANI .: 1713 Hygiene 1937 Industrial Toxicology posure J. phesung PATTY 1. Hygiene Interscience Interscience References menia Toxicology Literature References of > New York 1946 Ind References 1. Amencas Conference Governmental Governmental Hygienists AMA VORWALD J. al Med AMA Arch Ind Med S 1951 C of "Pace 2 he Sele Chons space Aimitenone, oi im limitations limitations imposible to bat 1951 2, 165), Wi have it is impossible of all methods exposure The | industrial type current current applicability basis Any specific usage rehability control applicability exposure can be evoluation professional problem professional industrial industrial hygiene bc personnel Kespiratory commercially industrial hygiene should of Kespiratory protective confined protective intermittent intermittent comercialy available upon relative used 4 confined control <strn control control for rating exposures and not relied as primary means upon a, high and severity of hazards nil low. . 2 ! rf | Wirt WILLIAM MCCORMICK MCCORMICKBYGENIC GUIDES Envty WILLIAM ELEVEY ELging Chairman Davy ELEVEY Ciror BW W. FALSETT CLYDE BEERY W. SPEICHER CONXITTEE HAWT MELVIN W FIRST HE STOKINGEE PAUL STOKINGEE Ph.D. EDWARD EDWARD V. HINBON Ed genie Hygienic CIATION, Hygienic be ciatio1n41p2r5epaid Mest Guide may sheets sheets Prevost of Discount Discount Michigan Michigan at Eowyn for y INDUSTRIAL HYGIENE may j t f | - , C) { . .