Document 8V8OzQ7mJygdabRebkVDn6zby

12/14/2001 14:21 330-467-4493 SEVAN AND ASSOCIATES PAGE 02/07 INDUSTRIAL RELATIONS BULLETIN p TP j SL'LLdTfN HTL 1 Industrial Hygiene Subject Asbe stoa RESPONSIBLE agpi | BUU.STII Employee Health Services ; 4 SUPERSEDES SATED Same ' 7/18/75 Asbestos 1b a generic term that describes a variety of naturally occurring fibrous, incombustible silicate minerals. Although tremendously valuable to industry, these minerals have been closely linked to asbesto3is, a degenerative lung-scarring disease, and to lung cancer. The Occupational Safety and Health Administration (OSEA), therefc has regulated employee exposure to asbestos since shortly after the agency's inceptior CSHA has defined asbestos, established standards for its use, and set permissible expc sure limits. The initial airborne asbestos fiber limits have been revised downward. Regulations under the OSHA asbestos standard are covered in 29 CFR, 1910.1001. Asbestc exposure in Ontario is regulated under the Occupational Health and Safety Act (Revised Statutes of Ontario, I960, Chapter 321, August 1962). Exposure limits presently diffe under the two regulations; however, industrial hygiene work practices to control dust and fiber in air are the same. Six fibrous minerals, members of a family called silicates, are recognized as asbestos chryaotile (white asbeatoB), actinolite, amosite (brown asbestos), anthophyllite, crocidolite (blue asbestos)1 and tremclite. Commercdally, ckryBotile is the most impcr taut form of asbestos, accounting for approximately 95% of the asbestos used in North America. Soma talc contains various amounts of asbestos. Asbestos has about 3000 different uses, with approximately two-thirds being used in th construction industry in building products, insulation, friction materials, and textil Manufactured products have included reinforced asbestos cement sheets and pipes, patch: and taping compounds, floor and ceiling tiles as well as paintB, coatings and sealants containing asbestos as reinforcing fillers, pipe linings and fillers for various liquit A variety of other uses are known including theater curtains, fire blankets and other thermal protection, filtration materials and, until recently, dry wall patch compounds and imitation fireplace aahes. Cnee incorporated into manufactured items, hazards resulting from asbestos are less probable, as long as the subBtsnce is not disrupted. However, the fibere are nearly indestructible, and a potential health risk arises whenever asbestos fibers axe set free, resulting in airborne aBbestos dust. Aabestosis is a diffuse fibrotic lung disease caused by exposure to high concentrations of asosstoB dust and fiber, usually after several years of exposure. The onset of aabestosis appears to depend on dust and fiber concentration, fiber shapes, type of asbestos, *Tid length of exposure. Usually, the disease becomes evident 20 or more year after the first exposure to asbestos. Once established, however, a highly disabling pneumoconiosis can progress even after exposure has ceased. . Bronchogenic carcinoma (lung cancer) and agothelioma of the pleura and peritoneum (cancer of membranous lining of the chest and abdominal cavities) are also associated with asbestos exposure. Excesses of cancer of the larynx, stomach, colon, and rectum have also been observed. Some forms of asbestos appear far more hazardous than others. As with aabestosi3, there can be a long latent period, generally more than 25 years for mesothelioma. The mechanism of action is not currently known. Asbestos i3 different from most chemical carcinogens because it is hot metabolized. over CRNi 0552 12/14/2001 14:21 330-467-4493 Bulletin No, if BEVAN AND ASSOCIATES -a- PAGE 03/07 8/22/83 .. .. The issue of risk of disease from asbestos exposure is further complicated in that smokers who have had asbestos exposure clearly have markedly increased risk of developing lung disease related to asfcestos. Asbestos exposures within Ford Motor Company may occur from: . Insulated pipe covering for parts washers and cleaners, 'steam and hot water lines. . insulated coverings for boilers and associated parts in powerhouses. Drying oven and furnace insulation. Asbestos blocks, bricks, sheets, and sleeves. . High temperature gasket materials for manifolds, pipes. . High temperature blankets, gloves. . Asbestos-containing parting compounds, certain talcs. Filtration media. Employee Exposure Since we do not manufacture asbestos materials, exposures are primarily limited to those who work with, asbestos-containing products. However, these exposures are no less significant. ] ''_ ' Demolition, removal, and repair of asbestos coverings and coatings offer other sources of worker exposure. Insulation removal or repair and brake and clutch servicing can he especially hazardous. Permissible Occupational Exposure Limits (PEL) -- Breathing Zone Concentrations Eight-hour time-weighted average exposure: 2 fibers longer than > micrometers per cubic centimeter of air (2 f/cc >5 ;ia). Ceiling concentration: 10 f/cc >5 ;am. Ontario TWAE PEL for amosite, crocidclite, and other forms.of asbestos are Go, 0.2, and 1.0 f/cc >5 Jim, respectively. The Ontario ceiling PEL for amosite, crocidolite, and other forma are 2.5, 1.0, and 5*0 f/cc >5 respectively. ' Methods of Compliance . Engineering controls, such ae isolation, enclosure, local exhaust ventilation, and dust collection are required and should be used to meet the FEL. . Compliance with the PEL may not be achieved by sole use of respirators or shift rotation except under special conditions approved 'ey Industrial Hygiene. . All hand and power operated tools, which may produce or release asbestos fibers in excess of the PEL, must be provided with local exhaust ventilation. . Insofar as practicable or unless the usefulness of the product would be diminished, asbestos must be handled, mixed, applied, removed, cut, scored, or otherwise worked in a wet state. Vet methods of control are very effective in suppressing airborne asbestos fiber and duat in pipe and furnace insulation repair and demolition. 12/14/2001 14:21 330-467-4493 Bulletin No. i BEVAN AND ASSOCIATES -3- PAGE 04/07 8/22/83 , Employees who may be exposed to asbestos should be trained in safe work practice and informed of the provisions in the OSHA asbestos standard and in this bullet! . Every employee engaged in the spraying, demolition, or removal of asbestoscontaining material shall be provided appropriate respiratory protection and special clothing (coveralls, hood and foot coverings, and gloves). . Only approved respiratory protection, statable for the concentration of asbestos expected, is to he provided. A respiratory protection program is mandatory for certain operations. . Double lockers and special laundering procedures far asbestos-contaminated clothi are required. . Special change rooms ar9 required for exposures exceeding the PEL. .Monitoring Initial and periodic monitoring are required. Sampling frequency shall not exceed every six months for employees whose exposure to asbestos my be foreseen to exceed the FSLs for the TWAE or ceiling concentrations. Medical Examinations Preplacement, annual, and termination'Of-eDiployiiient medical examinations are requirefor employees who are exposed to, or were in excess of, 0.1 f/cc seven to eight-hour time-weighted average exposure. Medical examinations should include as a tri-ina medical history to elicit symptomatology of respiratory disease, chest 2-ray, and pulmonary function testa, Recordkeeping Exposure and medical records or any personal, environmental, and/or medical monitorir must be maintained for at least 20 years. Affected employees, their designated representatives, and OSHA and NIOSH representatives, upon request, would have access to these records. Any employee found to have been exposed to concentrations in excess of permissible exposure limits ahall be notified of this in writing within five days of the finding. The employee shall also he timely notified of corrective action being taken. Signs and Labels Caution signs ahall be provided and displayed in areas where airborne asbestos concen trations may be in excess of the HEL. Signs shall be posted at such a distance to permit an individual to take the necessary protective measures before entering the contaminated area. Housekeeping Surfaces should be kept free of accumulations of asbestos if, with their dispersion, there would be excessive airborne concentrations. Additionally, asbestos waste, scrap, debris, clothing, and/or other items contaminated with asbestos should be handled, collected, and disposed in sealed labeled imperosable bags. Asbestoscontaining waste must not be incinerated or discharged into community water supplies. Soecific information regarding waste disposal should be obtained from the Stationary Source Environmsntal Control Office (SSECO). Enrolovee Trainine over CflNl B662 PRODUCED BY FORD 12/14/2001 14:21 330-467-4493 Gulletin No. k BEVAN AND ASSOCIATES PAGE 05/07 3/22/63 Information and Industrial Hygiene Services Further information regarding the OSHA asbestos standard may be obtained from Industrial Hygiene Services, 33-78955. Assistance can be provided, regarding employes exposure monitoring and analysis, appropriate respirators, approved vacuum sweepers, engineering controls, and other eleaents of the OSHA asbestos exposure standard. It is recommended that materials suspected of containing asbestos be submitted to the Industrial Hygiene Laboratory far analysis prior to any handling that could generate airborne fiber and dust, A check list to help identify products containing asbestos is available from Plant Engineering Office, Manufacturing Staff (Manufacturing Practice Ho. 303, December 1981, "Employee Exposure to Asbestos Containing Non-Production Materials"). Manufacturers of washers and industrial vacuums equipped with high efficiency filters and approved for asbestos dust control include: . "Tornado ToxVac" Brsuar Electric Manufacturing Company 7h01 Vest Lawrence Avenue Chicago, Illinois 60656 (312) 867-5100 . "HaJco MinuteiDann Halo Minutemsn . - Ifl South Houte 53 Addison, Illinois 60101 (312) 627-6900 . "Nilfiak" Nilfiafc of America, Incorporated 201 King Ifanor Drive Sing of Prussia, Pennsylvania 19i*G6 (215) 277-3900 Other vacuums would be acceptable provided they meet filtration efficiency specified in the OSHA asbestos standard. 12/14/2001 14:21 330-467-4493 Bulletin No. BEVAN AND ASSOCIATES PAGE 07/07 6/22/83 (continued.) All asbestos waste must be disposed in accordance with. OSHA asbestos regulations and the appropriate sections of Subpart B- National Emission Standard for Asbestos, Title hO- Protection of the Shvironment, Chapter 1, Environmental Protection Agency. Asbestos-containing waste must not be incinerated or discharged into community water supplies. Specific information regarding waste disposal should be obtained from the Stationary Source Environmental Control Office (SSECQ). 7 All floor cleaning in areas where brakes and clutches are repaired should be done with the high efficiency industrial vacuum cleaner as described in (h) above. Grinding (arcing)maahines shall also be cleaned with this vacuum cleaner and any remaining dust wiped with a damp cloth. An approved respirator, as described in (3) above, shall be used during this cleaning. 3. Although adherence to above procedures should minimize contamination of work clothing, it is recommended that the appropriate portions of OSEA regulations on asbestos concerning special'clothing, change roams, etc. be followed. duPont "Tyvek*1 disposable coveralls are acceptable for these asbestos-product maintenance operations. 9* Industrial hygiene work practices in this bulletin and the OSHA asbestos exposure standard should be provided to all employees with potential exposure to asbestos at brake and clutch servicing and reviewed with their designated representatives. produced by ford