Document By1o19X2OZ5nEpvr5pxqKX8dk

FILE NAME: Z/ZZZZ/ DATE: D DOC#: / DOCUMENT DESCRIPTION:/ZZZZtZW ZZZ' " 'A ~ " ,- .. ,_ . ~ode 1515 04 64 80 ASBESTOS INFORMATION ASSOCIATION 1745 Jaeftferson Davlis H,lghway Arllington. Virginia' 22202 0888 ~.o C CJl . Recommended Work Practices. I I ! I for i Asbestos- I Containing I , I Gaskets r-.1ARCH 15, 1985 Coatems Introcluc:tiOD ............................... 3 .Asbestos and Health 4 Summary of OSHA .Asbestos Standard" 4 Products and Opera.tioDS ..................... 5 Recommended Work Practices S Stor.age ~ S Fabri~oD ~ S Qrisi,DalIDstallatiOIl .. ... ... .. .. .... 6- Gasket Replacement .............................6- HousekeepiDs and vvaae~ ................... 7 Appendix Federal Waste' Disposal Standard .......'... .. .. .. .. .. .. .. .. ... .... 9 lntroductioD The Occ:upational Safety and Health Act (OSH Act) iDn the United States and similar laws iDn Canada and other countries were enacted to ensure every I worker a safe and healthy workpJace. This legisJation is far-reaching. It covers millions" of employees and nearly every employer. j I The information and guidance iDn this booklet I have been developed to assist iDn assuring compliance with the OSH Act and the Occupational 1 Safety and Health Administration's (OSHA) standard for occupational exposure to asbestos dust en .t (29 CPR Part 1910.1001). Because state or lC)C8.( regulations may differ" from the OSHA ~ they should be reviewed to ensure total compliailce-. I The usec of good work practices is recopized as onec" of the- means of reducing heAlth hazards associated with exposure to asbestos dust. The- recollllllCDdations. that appear OD the fonowing 1 pages were developed through experience. study, 'I 1 and field safer and testing. They were more healthful job designed to" achiever site conditions when working with asbestos-contaiaiag gasket material. MaIdl 15. 198.S Asbestos and Health Exposure to asbestos fibers can increase the risk ofdeveloping certaindiseases overa period ofyears Diacascs uaociated with inhalation ofasbestos fiber ate: asbestosis, a non-malipant scarring lung condition; cancer of the lung; mesothelioma - a rare cancer 9f the lining of the chest or abdominal cavities; _ possiblyt cancer ofthe dipstive tract. It should be empbasized that the evideJlClt of adverse health effects (malignantand nonmalignant lung disease) due to the combined action ofcigarette smoking and exposure in the workplace is- well established. Workers who handle asbestos greatly reduce their health risks by not smoking cigaIettes. We win continue to sec cases of asbcstos-rdated disease for some years because of the unfortunate lcpcy of ~ past exposures. However, the present state of scientif'w knowledge- shows dearly that minimizing expGSUIe to airborne asbestos dust reduces the risks of asbestos-related disease. Good work practices. ant one means of significantly redudngpmmationofdust. SuJnmarr of' OSHSA AIbestos Staadard Under the current OSHA standard for occupational exposure- to asbestos dust, it is the employer's respoDSibility to assure that exposure of employees. to airborne concentrations of asbestos fibers does not exceed the following permissible exposure levels: a. Bight-hour time-weighted average (TWA): Two flibcers longer than S micrometers, per cubic centimeter (2 f/cec). b. CeiliDg concentrations: Ten fibers, longer than Smicrometers, per cubic centimeter (10 f/cec). OSHA Instruction CPL 2-221A of February 18, 1981 states that the medical examination requirements of the asbestos standard will be required where the 7 to 8-hour TWA fiber G~on is 0.1 fla:. or greater. 4 Extensive field monitoring hbas demonstrated that the proper use of asbestos-c6ntaining gaskets can result in dust levels which are less than an 8-hour TWA of 0.1 f/cec. By following the work practices recommended in this booklet when using such products, dust levels can be minimized. Prod._ad OperadoDl These work practices apply to the- use of non- friable asbestos-contaiuing compressed, beateraddition, and gasket millboard material when furnished as precut gaskets or in sheets and roUse Operations to which these work practices apply include: A. Storage B. Fabrication C. Installation D. Replacement E. Housekeeping and Waste Disposal ReeccooDmUmD__ddld Work PractIces A. Sttaonn..p. Gaskets materials are typicaBy received.in three forms: sheets, rolls, and prceCut gaskets. Storage areas should be kept clean. and dust free, either by wet sweepingorwith the use of a vacuum cleaner fitted with a high efficiency particulate aerosol (BEPA) filter. Any information provided by the manufacturer, such as health wamings and handling requirements, should be retained. B~ Fabrication 1~ HandpllllCbing Bolt holes are often made with the use of a band punch and mallet. If feasible, the material should be dampened while it is being worked. All areas where hand punching takes place should be kept clean and dust free. Scraps of waste from hand puncbins should be dispoKG ooCf in the proper manner. S 2. Hand SbapiD. such as a wood chisel, in order to remove it Hand shaping of gaskets is carried out with the use ofa scribe, pocket knife, or scisson. Gasket sizes are scribed onto a Oat sheet of asbestos gasket material and then cut by the use of scissors or a pocket knife. The gasket material shoulcl be dampened during in the largest possible pieces. Where practicable. surfaces to be ground, scraped or brushed should be wetted. Work areas should be cleaned promptly. Unless airborne concentrations are known,. respiratory protection is advisable. secnriDbing and cutting, if feasible. In this Note: Some gaskets may be coated or surface- opcraUon, as iDll. others involving asbestos, trcatecl with a parting. agent so that when work an:as should be kept dean and dm gaskets are rmeImlOovveedd,, there is no anceecdl for excess free- and waste scraps. should be promptly disposed of in the proper manner. 3. DIe Cutdna - IIaIul Operated Press Gaskets are somcUmes.cut to size and shape grinding, scraping or brushing. t E. HollllkeeplDllIId Waste Disposal 1 Housekeeping is an essential part ofany safe operation. Airborne asbestos dust created on bancl operated mechanical cutting by the lack of good housekeeping has- the pxesses. The surfaces of these machines and potential for harm to employees and others.. the surrounding: work area. should be ICeep work areas clean by wet wiping or wet maintained to be cleanand dustfree. Gasket. sweeping, or by vacuuming with a unit scrapsshould bepromptly disposed ofiDthe . ; proper maDDer. equipped with Iai high efficiency particulaW aerosol (HEPA) ruler. NEVER. DRY 4i.. Die Cuttflla'" Power .... Power-operated presses used in gasket fabrication: should: be provided with local exhaust ventilation- u needed. Maintain sharp dies to reduce burrs that will increase the potential fot dust and require further budling. ~work area should be k . ina clean and dust tice condition. Note: Large pieces of gasket material left after the fabric:ati~n operation may be mumecl to storage for futUle usct. SWEEP' OR BLOW ASBESTOS WITH COMPRESSED AIR. The scrap- offcuts and webs. from. theseOperatiODS are not coDSiderecl a ~01JS. ~ under the Resource CoascrvatioD and Recovery Act (RCRA) and c:&n be sbipped to local landfiDs for disposal Consult the Appendix for the federal regulations covering asbestos waste disposal AVOID CREATING DUST. C. OJi&IuIlneteu.... No special controls are required. D. Gullet RepllCemeat ... R.emoYali a_add ,,-WOD Replacing worn orscheduled service gaskets often requires the use of a scraper or a wire brush to remove an of the old gasket material from the flange surface before a new gasket is put into place. Begin by prying or 1evermS off the old suket with a scraper. 8- 7 _....... - _. - - - ..... - - ~- ..-.-.;.. , .. : .. ::-~ " ...... , . ,-+-- .. - . ,. . J:1 Ui III ;"EJ.,h. Ii ;t:~q!Jt]18IIts!sl-Iu..If I ~fl!qi:1J18lirsldl/lIt.~Jth~iIl-lrll B~ fr II'M 1ai .. 1U8Ji!Usr fJ fir'll~sI.Ittl I~.,. 1s1 If l;~1.11lIi~lI""ldi.: i..,If II,I 1I 1~ .:1tUH i!~!tllfl!1i11!.J1I1I1 IIll:ullilii:~flftljl!f!ili'I!Ill' !~ I~ i Ula 1 1ft If sI. f filII! hUlt I J f Q .... '. . . .....__-..:'_.:.,4.:,. ~ ..~~ . 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