Document O3N5940Z9xpLY8376JzzeJ6E1

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T echnical B u lle tin #83-3 "Asbestos Exposures". e H 1 rH 01 Vi 1 CO CwO Vl 0) XJ 00)) oc3O 4J *H c<D 3 cr iH B01 0) co Vi XJ 44 o * XJ -H rH tXo< > *o we 0) CO XJ CO o < Cl 2 O H J0Q) C0O) o XJ o .CO U co pa < o 0) * X -u c W C CO CO XJ 01 rH CO a saQi 01 Vai a 01 <ow Oo Vo u U XJ *3o 0o1 3 CL O HO C CLO XJ O XJ <D oM at -H C XJ XJ o X XJ X Cat aut O a 6 -H 0) o o 3 44 *3 XJ o OH H rH O XJ CO to o XJ CD 01 rH 03 o CO o < rH o Vi 4J 0) CO c 01 H O CO CO H .a oo CD.nO co 3 Vl 0) co C -H < o H O fH c at > 60 Vi XJ O, -H CO CO CO c/a Li rl XJ CO PO o Vi U CO CV CO o H XJ a < 3 0C 03 o CL O XJ 0a1t at >* 1 oH o ON *4* rH CO XJ 08 s o Ho H cO XJ c 4J < s o c H CO ox o 4-1 O xj Vi O C0 Vl c o < Vi e W H x> CL o 44 0.0 2 H xj s o 44 XJ w 01 . a n* a; CO X ao H CO o O a CO 01 CO U 01 X o O CD uo c o 3 (0 go E CO CO . z rH 0) 1-3 0) H H <c/> too 0) -D 01 J3 o CO CO x (X. rH hJ Vi CO > 01 O rH CO XJ -cH rH s 60 CJ w a XJ XJ co M 01 01 J3 a XJ CO o c0 /*N O XJ O3O wo z w CO o< Cl 2 O X 0) E Mc M CO rH CD < at 3 X rH O XJ M M >> MAINTENANCE DEMOLITION/RENOVATION JOBS REVIEW PROJECT - Project Engineer - Industrial Hygiene - Safety SUSPECT NO FOLLOW SAFE WORK PRACTICES Yes MAKE A DETERMINATION - Plant Files - Efftf Analysis - Other ALERT APPROPRIATE CONTACTS - Environmental - Hygiene - Safety - Others Positive No Yes Neg. 3 CONSIDER ALL MATERIALS? 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H- CL= JZ CL Ul CO z CO OJ 00 a: r-- CM JZ M O o r- O O X X Q 4J IQ OJ OJ r-- 3 IO 00 E CM <c QZ a. x: p p> CO OJ oz OJ CO O5 . .-J * ZD a CO CP UJ <c CD a: UJ a. c CD CZ 0 2 ct: 1:ROM: S. M. ANDERSON-50/ TO: MEMORANDUM 1983 April,28 -- f'rarj^yyJU. j - or RE: ASBESTOS REMOVAL During the past several years, we have replaced many of our asbestos containing products with ones that are asbestos-free. However, we still have a significant amount of asbestos insulating some of our furnaces and steamlines. This presence will con tinue to be a source of asbestos exposure for many years. To reduce employee exposure to asbestos during the removal of asbestos containing insulation, the following guidelines are being recommended. These guidelines will put us in compliance with OSHA's asbestos regulations (attached). Please review these guidelines and prepare your comments for a meeting scheduled for Thursday, May 5, at 1:00 PM in the Chem Lab Conference Room. SCOTT M. ANDERSON SMA:vie Attachments cc: (w/attachments) V. C. Adorno-301' S. R. Barr-60* J. E. Bintz-210 R. H. Hargis-204' -&7--D. - Hicks'3BB. L. Konkoski-73' Informational Copies Only W. T. Burt-201 W. J. Curtin-59 M. J. Elder, MD-22 J. R. Feeley-59A W. B. Parker-60 B. A. Schafer-301 W. K. Shinn-60 P.-T,--Woerz 25P. F. Woodward-8 R. H. Feild-8 D. E. Jackson-301 G. L. McCullough-28 G. H. Schneider-303 PRE-PLANNING Consult with the Industrial Hygienist several days prior to '" /'7 the removal of asbestos containing material. The Industrial \r Hygienist will take samples of the material and analyze it /.-/' ( for asbestos content. If asbestos is present, strict work 1 c " practices must be followed to prevent exposure to asbestos fibers. Personal and area air sampling may be conducted to document the extent of personal exposure and the effectiveness of control methods, Inform employees about the presence of asbestos; explain the hazards and control measures to be taken. No smoking or eating is to be permitted in the work area. If a lunch table is nearby, those employees who eat there must be relocated. All lunch tables near the work area must be washed following the completion of asbestos removal. All employees removing or handling asbestos must wash all exposed skin prior to eating, smoking, or leaving work. WORK PRACTICES Enclose the work area with plastic to maximum feasible extent and delineate the work area with tape or rope and the following warning signs: ASBESTOS DUST HAZARD . Avoid Breathing Dust Wear Assigned Protective Equipment Do Not Remain in Area Unless Your Work Requires It Breathing Asbestos Dust May Be Hazardous to Your Health Prohibit access to work area to all but properly trained and equipped personnel. Wet methods of removal (i.e. water spray) should be used whenever possible to prevent the emission of asbestos fibers. However, water should not be used where electrical or other hazards exist, Never dry sweep or blow asbestos material; utilize local exhaust or vacuum methods to collect fibers. All persons in a restricted area shall wear a 3M 8710 dust/mist respirator approved for asbestos use or other suitable respir atory protective equipment. The 3M 9906, the blue potroom respirator, is not approved fon asbestos use and is not to be used. 2- - Protective disposable garments are to be worn by all employees engaged in the removal of asbestos insulation. The protective clothing shall include: white disposable coveralls, gloves, and caps. All contaminated clothing is to be disposed of as asbestos material. The coveralls should be replaced each day or when torn. Protective clothing shall be removed prior to leaving a restricted area. When removing protective clothing, the respirator should be the last piece of equip ment removed. DISPOSAL All asbestos containing waste must be disposed of in specially marked steel drums. These drums are available from Paul Perkins, 4121. Asbestos drums are labled as follows: Caution Contains Asbestos Fibers Avoid Creating Dust Breathing Asbestos Dust May Cause Serious Bodily Harm Seal full drums and contact Paul Perkins, 4121 for the disposal of full drums. OUTSIDE CONTRACTORS Any outside contractor working with or removing asbestos containing materials must meet Alcoa's practices. 1910.1000(4X2X1) STANDARDS AND INTERPRETATIONS ____ <:;al safety and health The value of Ea shall not exceed unity (1). Since Er, is less than unity (1), the expoure combination is within acceptable limits. (ii)To illustrate the formula prescribed in subdivision (i) of this subparagraph, consider the following exposures: Materia] Acetone (Table 25--1) 2-Butanone (Table Z-l) Toluene (Table Z-2) Actual concentration of 8-hour exposure 8-hour time weighted average exposure limit 500 p.p.m. 45 p.p.m. 40 p.p.m. 1,000 p.p.m. 200 p.p.m. 200 p.p.m. Substituting in the formula, we have: 500 45 40 Em --------- f~------ + 1,000 200 200 Em = 0.500 + 0.225 + 0.200 E. = 0.925 (e) To achieve compliance with paragraph (a) through (d) of this section, administrative or engineering controls must first be determined and implemented whenever feasible. When such controls are not feasible to achieve full compliance, protective equipment or any other protective measures shall be used to keep the exposure ofemployees to air contami nants within the limits prescribed in this sec tion. Any equipment and/or technical measures used for this purpose must be approved for each particular use by a compe tent industrial hygienist or other technically qualified person. Whenever respirators are used, their use shall comply with 1910.134. 1910.1001--ASBESTOS (a) Definitions. For the purpose of this section. (1) "Asbestos" includes chrysotile, amosite, crocidolite, tremolite, anthophyllite, and actinolite. (2) Standard effective July 1, 1976. The 8-hour time-weighted average airborne concentrations of asbestos fibers to which any employee may be exposed shall not exceed two fibers, longer than 5 micrometers, per cubic centimeter of air, as determined by the method prescribed in paragraph (e) of this section. (2) "Asbestos fibers" means asbestos fibers longer than 5 micrometers. (b) Permissible exposure to airborne concen trations of asbestos fibers. (1) Standard offective July 7, 1972. The 8-hour time-weighted average airborne concentra tions of asbestos fibers to which any employee may be exposed shall not exceed five fibers, longer than 5 micrometers, per cubic centimeter of air, as determined by the method prescribed in paragraph (e) of this section. (3) Ceiling concentration. No employee shall be exposed at any time to airborne concentra tions of asbestos fibers in excess of 10 fibers, longer than 5 micrometers, per cubic cen timeter of air, as determined by the method prescribed in paragraph (e) of this section. (c) Methods of compliance. (1) Engineering methods. (i) Engineering controts. Engineering con trols, such as, but not limited to, isolation, enclosure, exhaust ventilation, and dust 19I0.1001(cXlXI> 7Q2 OCCUPATIONAL SAFETY AND HEALTH i:;c.iMKcXixi> STANDARDS AKD 1 's' iI^U.'RETATIONS collection, shall be used to meet the exposure limits prescribed in paragraph (b) of this section. (ii) Local exhaust ventilation. (a) Local exhaust ventilation and dust collection systems shall be designed, constructed, installed, and maintained in accordance with the American National Standard Fundamentals Governing the Design and Operation of Local Exhaust Systems, ANSI Z9.2-1971, which is incorporated by reference herein. (b) See 1910.6 concerning the availabil ity of ANSI Z9.2-1971, and the mainte nance of a historic file in connection therewith. The address of the American National Standards Institute is given in 1910.100. (iii) Particular tools. All hand-operated and power-operated tools which may produce or release asbestos fibers in excess of the exposure limits prescribed in paragraph (b) of this section, such as, but not limited to, saws, scorers, abrasive wheels, and drills, shall be provided with local exhaust ventilation systems in accordapce with subdivision (ii) of this subparagraph. (iii) Spraying, demolition, or removal. Employees engaged in the spraying of asbestos, the removal, or demolition of pipes, structures, or equipment covered or insulated with asbestos, and in the removal or demolition of asbestos insula tion or coverings shall be provided with respiratory equipment in accordance with paragraph (d)(2)(iii) of this section and with special clothing in accordance v/ith paragraph (dX3) of this section. (d) Personal protective equipment. (1) Compliance with the exposure limits pre scribed by paragraph (b) of this section may not be achieved by the use of respirators or shift rotation of employees, except: (I) During the time period necessary to install the engineering controls and to institute the work practices required by paragraph (c) of this section; (ii) In work situations in which the methods prescribed in paragraph (c) of this section are either technically not feasible or feasible to an extent insuf ficient to reduce the airborne concentra tions of asbestos fibers below the limits prescribed by paragraph (b) of this sec tion; or (2) Work practices. (iii) In emergencies. (i) Wet methods. Insofar as practicable, asbestos shall be handled, mixed, applied, removed, cut, scored, or otherwise worked in a wet state sufficient to prevent the emission of airborne libers in excess of the exposure limits prescribed in para graph (b) of this section, unless the use fulness of the product would be dimin ished thereby. (ii) Particular products and operations. No asbestos cement, mortar, coating, grout, plaster, or similar material containing asbestos shall be removed from bags, car tons, or other containers in which they are shipped, without being either wetted, or enclosed, or ventilated so as to prevent effectively the release of airborne asbes tos fibers in excess of the limits prescribed in paragraph (b) of this section. (iv) Where both respirators and personnel rotation are allowed by subdivisions (i), (ii), or (iii) of this subparagraph, and both are practicable, personnel rotation shall be preferred and used. (2) Where a respirator is permitted by subparagraph (1) of this paragraph, it shall be selected from among those approved by the Bureau of Mines, Department of the Interior, or the National Institute for Occu pational Safety and Health, Department of Health, Education, and Welfare, under the provisions of 30 CFR Part 11 (37 F.R. 6244, Mar. 25, 1972), and shall be used in accordance with subdivisions (i), (ii), (iii), and (iv) of this subparagraph. (i) Air purifying respirator*. A reusable or single use air purifying respirator, or a 703 1910.1001(dX2Xl> iri0.1031(dX2Xl) STANDARDS AND INTERPRETATIONS OCCUPATIONAL SATOT AND HEALTH respirator described in subdivision (ii) or (iii) of this subparagraph, shall be used to reduce the concentrations of airborne asbestos fibers in the respirator below the exposure limits prescribed in paragraph (b) of this section, when the ceiling or the 8-hour time-weighted average airborne concentrations of asbestos fibers are reasonably expected to exceed no more than 10 times those limits. (ii) Powered air purifying respirators. A full facepiece powered air purifying respirator, or a powered air purifying respirator, or a respirator described in subdivision (iii) of this subparagraph, shall be used to reduce the concentrations of airborne asbestos fibers in the respirator below the exposure limits pre scribed in paragraph (b) of this section, when the ceiling or the. 8-hour timeweighted average concentrations of asbestos fibers are reasonably expected to exceed 10 times, but not 100 times, those limits. (iii) Type "C" supplied-air respirators, continuous flow or pressure-demand class. A type "C" continuous flow or pressure-demand, supplied-air respirator shall be used to reduce the concentrations of airborne asbestos fibers in the respirator below the exposure limits prescribed in paragraph (b) of this section, when the ceiling or the 8-hour time-weighted average airborne concentrations of asbestos fibers are reasonably expected to exceed 100 times those limits. (iv) Establishment of a respirator program. (a) The employer shall establish a respirator program in accordance with the requirements of the American National Standard .Practices for Res piratory Protection, ANSI Z88.2-1969, which is incorporated by reference herein. (b) See 1910.6 concerning the availabil ity of ANSI Z88.2-1969 and the mainte nance of an historic file in connection therewith. The address of the American National Standards Institute is given in 1910.100. (c) No employee shall be assigned to tasks requiring the use of respirators if, based upon his most recent examina tion, an examining physician deter mines that the employee will be unable to function normally wearing a respirator, or that the safety or health of the employee or other employees will be impaired by his use of a respirator. Such employee shall be rotated to another job or given the opportunity to transfer to a different position whose duties he is able to perform with the same employer, in the same geographi cal area and with the same seniority, status, and rate of pay he had just prior to such transfer, if such a different posi tion is available. (3) Special clothing: The employer shall pro vide, and require the use of, special clothing, such as coveralls or similar whole body clothing, head coverings, gloves, and foot coverings for any employee exposed to air borne concentrations of asbestos fibers, which exceed the ceiling level prescribed in paragraph (b) of this section. (4) Change rooms: (i) At any fixed place of employment exposed to airborne concentrations of asbestos fibers in excess of the exposure limits prescribed in paragraph (b) of this section, the employer shall provide change rooms for employees working reg ularly at the place. (ii) Clothes lockers: The employer shall provide two separate lockers or con tainers for each employee, so separated or isolated as to prevent contamination of the employee's street clothes from his work clothes. (iii) Laundering: (a) Laundering of asbestos con taminated clothing shall be done so as to prevent the release of airborne asbes tos fibers in excess ofthe exposure limits prescribed in paragraph (b) of this sec tion. (b) Any employer who gives asbestoscontaminated clothing to another per- isio.iooiwx4xmxb) 704 occur-at; oval tat-tty and health i9io.ic:K^;:;a:ixb) STANDARDS AND INTERPRETATIONS son for laundering shall inform such person of the requirement in (a) of this subdivision to effectively prevent the release of airborne asbestos fibers.in excess of the exposure limits prescribed in paragraph (b) of this section. intervals greater then 6 months for employees whose exposure to asbestos may reasonably be foreseen to exceed the limits prescribed by paragraph (b) of this section. (3) Environmental monitoring. (c) Contaminated clothing shall be transported in sealed impermeable bags, or other closed, impermeable con- . tainers, and labeled in accordance with paragraph (g) of this section. (e) Method of measurement. All determinations of airborne concentra tions of asbestos fibers shall be made by the membrane filter method at 400-450 x (mag nification) (4 millimeter objective) with phase contrast illumination. (i) Samples shall be collected from areas of a work environment which are rep resentative of the airborne concentra tions of asbestos fibers which may reach the breathing zone of employees. Samples shall be collected on a membrane filter of 0.8 micrometer porosity mounted in an open-face filter holder. Samples shall be taken for the determination of the 8-hour time-weighted average airborne concen trations and of the ceiling concentrations of asbestos fibers. (f) Monitoring. (1) Initial dterminations. Within 6 months of the publication of this section, every employer shall cause every place of employ ment where asbestos fibers are released to be monitored in such a way as to determine whether every employee's exposure to asbestos fibers is below the limits prescribed in paragraph (b) of this section. If the limits are exceeded, the employer shall immediately undertake a compliance pro gram in accordance with paragraph (c) of this section. (2) Personal monitoring. (i) Samples shall be collected from within the breathing zone of the employees, on membrane filters of 0.8 m icrometer poros ity mounted in an open-face filter holder. Samples shall be taken for the determina tion of the 8-hour time-weighted average airborne concentrations and ofthe ceiling concentrations of asbestos fibers. (ii) Sampling frequency and patterns. After the initial determinations required by subparagraph (1) of this paragraph, samples shall be of such frequency and pattern as to represent with reasonable accuracy the levels of exposure of employees. In no case shall the sampling be done at (ii) Sampling frequency and patterns. After the initial determinations required by subparagraph (1) of this paragraph, samples ; shall be of such frequency and pattern as to represent with reasonable accuracy the levels of exposure of the employees. In no case shall sampling be at intervals greater than 6 months for employees whose exposures to asbestos may reason ably be foreseen to exceed the exposure limits prescribed in paragraph (b) of this section. (4) Employes observation cf monitoring. Affected employees, or their representatives, shall be given a reasonable opportunity to observe any monitoring required by this paragraph and shall have access to the records thereof. (g) Caution signs and labels. (1) Caution signs. (i) Posting. Caution signs shall be provided and displayed at each location where air borne concentrations of asbestos fibers^ may be in excess of the exposure limits ^ prescribed in paragraph (b) of this section. Signs shall be posted at such a distance from such a location so that an employee may read the signs and take necessary protective steps before entering the area marked by the signs. Signs shall be posted 705 i9]0.i00i(tXiX) ,r , ir-!T':}!lXl> r.TA.\*DAPJ>S AND INTERPRETATIONS OCCUPATIONAL SAFETY AND HEALTH at all approaches to areas containing excessive concentrations of airborne asbestos fibers. ily visible and legible. The label shall state: Caution (ii) Sign specifications. The warning signs required by subdivision (i) of this subparagraph shall conform to the require ments of 20* x 14* vertical format signs specified in 1910.145(d)(4), and to this subdivision. The signs shall display the following legend in the lower panel, with letter sizes and styles of a visibility at least equal to that specified in this sub division. Legtnd Asbestos----------------------------------------- Dust Hazard VI" Sans Avoid Breathing Dust--------------------Wear Assigned ProtectiveEquip- ment. Do Not Remain In Area Unless Your Work Requires It Breathing Asbestos Dust May Be Hazardous To Your Health. Notation 1" Sans Serif, Gothic or Block. Serif, Gothic or Block. V4" Gothic. V4" Gothic, VI' Gothic. 14 point Gothic. Contains Asbestos Fibers Avoid Creating Dust Breathing Asbestos Dust May Cause Serious Bodily Harm (h) Housekeeping. (1) Cleaning. All external surfaces in any place of employment shall be maintained free of accumulations of asbestos fibers if, with their dispersion, there would be an excessive concentration. (2) Waste disposal. Asbestos waste, scrap, debris, bags, containers, equipment, and asbestos-contaminated clothing, consigned for disposal, which may produce in any reasonably foreseeable use, handling, storage, processing, disposal, or transportation airborne concentrations of asbestos fibers in excess of the exposure limits prescribed in paragraph (b) of this section shall be col lected and disposed of in sealed imperme able bags, or other closed, impermeable con tainers. Spacing between lines shall be at least equal to the height of the upper of any two lines. (2) Coution labels. (i) labeling. Caution labels shall be affixed to all raw materials, mixtures, scrap, waste,debris, and other products contain ing asbestos fibers, or to their containers, except that no label is required where asbestos fibers have been modified by a botiding agent, coating, binder, or other material so that during any reasonably foreseeable use, handling, storage, dis posal, processing, or transportation, no airborne concentrations of asbestos fibers in excess of the exposure limits pre scribed in paragraph (b) of this section will be released. (i) Recordkeeping. (1) Exposure records. Every employer shall maintain records of any personal or environ mental monitoring required by this section. Records shall be maintained for a period of at least 20 years and shall be made available upon request to the Assistant Secretary of Labor for Occupational Safety and Health, the Director of the National Institute for Occupational Safety and Health, and to au thorized representatives of either. [41 F.R. 11504, March 19, 1976.] (2) Employee access. Every employee and former employee shall have reasonable access to any record required to be main tained by subparagraph (1) of this para graph, which indicates the employee's own exposure to asbestos fibers. (ii) Label specifications. The caution labels required by subdivision (i) of this subparagraph shall be printed in letters of sufficient size and contrast as to he read (3) Employee notification. Any employee found to have been exposed at any time to airborne concentrations of asbestos fibers in excess of the limits prescribed in paragraph (b) of 1910.1001(1X3) 706 OCCUrAI 1GNAI. Vi / . ilHALTH 1910.10010X3) STANDARDS AND INTERPRETATIONS this section sli:i|| he notified in writing of the exposure ns soon as practicahle hut not later than f> days of the finding. The employee shall also be timely notified of the corrective action being taken. (j) Medical examinations. (1) General. The employer shall provide or make available at his cost, medical examina tions relative to exposure to asbestos, required by this paragraph. (2) Preplacement. The employer shall provide or make available to each of his employees, within 30 calendar days following his first employment in an occupation exposed to air borne concentrations of asbestos fibers, a comprehensive medical examination, which shall include, as a minimum, a chest roent genogram (posterior-anterior 14 x 17 inches), a history to elicit symptomatology of respiratory disease, and pulmonary func tion tests to include forced vital capacity (FVC) and forced expiratory volume at 1 sec ond (FEV1.0). (3) Annual examinations. On or before January 31, 1973, and at least annually thereafter, every employer shall provide, or make avail able, comprehensive medical examinations to each of his employees engaged in occupa tions exposed to airborne concentrations of asbestos fibers. Such annual examination shall include, as a minimum, a chest roent genogram (posterior-anterior 14 x 17 inches), a history to elicit symptomatology of respiratory disease, and pulmonary func tion tests to include forced vital capacity (FVC) and forced expiratory volume at 1 sec ond (FEV1.0). (<) Termination of employment. The employer shall provide, or make available, within 30 calendar days before or after_the termina tion of employment of any employee engaged in an occupation exposed to air borne concentrations of asbestos fibers, a comprehensive medical examination which shall include, as a minimum, a chest roent genogram (posterior-anterior 14 x 17 inches), a history to elicit symptomatology of respiratory disease, and pulmonary func tion tests to include forced vital capacity (FVC) and forced expiratory volume at 1 sec ond (FEV1.0). (5) Recent examinations. \To medical exnminat ion is required of any employee, if adequate records show that the employee has been examined in accordance with this para graph within the past 1-year period. (6) Medical records. (i) Maintenance. Employers of employees examined pursuant to this paragraph shall cause to be maintained complete and accurate records of all such medical examinations. Records shall be retained by employers for at least 20 years. (ii) Access. The contents of the records of the medical examinations required by this paragraph shall be made available, for inspection and copying, to the Assistant Secretary of Labor for Occupa tional Safety and Health, the Director of NIOSH, to authorized physicians and medical consultants of either of them, and, upon the request of an employee or former employee, to his physician. Any physician who conducts a medical exami nation required by this paragraph shall furnish to the employer of the examined employee all the information specifically required by this paragraph, and any other medical information related to occupa tional exposure to asbestos fibers. 1910.1002--COAL TAR PITCH VOLATILES; INTERPRETATION OF TERM As used in 8 1910.1002 (Table Z-l). coal tar pitch volatiles include the fused polycyclic hydrocarbons which volatilize from the distillation residues ofcoal, jx-troleum, wood , and other organic matter. Change 6 707 1910.1002 se 01 ^ rH C Oc' p c r--1 -HO rH O P P-H flj cH ap id id i--1 HOOP H P E N pPp p a a -H P o E 3 P o E O P P TJ 3 43 OP PP C3 0) o H p p 3 -H O' p 43 -H p O P C rH -<W 4H -H Ep o __ 3 (1) 2 sa e > a P-H 01 ca >,43 p X p C E PU a S 4H O rH O O *H *H tP O' P rH 01 ai 3 oi id P < a OP ^ c ao id *o 3 O' X rH X x c P -H o c id id QM.HP id X p CHP V o o PU P GC P a -h -h 43 a o p n3 5 > -H 43 P o 5 xp a id >i-i O < -H -H Q p OG - E G a O' a o Eh n 43 P Vi 3 P-H 0 O G *o X (0 ft P O P-H 01 0 rH p a a o 43 H O P X X Id < 3 O JH ap xj 3 o i a a 43 oa P O'P 01 p H P 01 p SO 03 f P O C oi O a 43 P 3 G CM X ft 01 X P H X M o >, a o n 0 *h S E 0) 43 D a XI Q >0 G 03 03 O rH P OOCP ap 43 o p at c O' nl p H *0 -H P ft 3 rH O 43 rH >1 3 0) p rH He 0 id o o >CE2 0**0 pa rH HOG 0 PrlQPaS P 3 a 03 01 O O < 01 43 < O' G P xj p c p > -H 43 0 O-H 01 p H 01 G H X -H id n 43 N h a o 43 03 pc P P 43 P O > p p o a H X o U 01 O' aP P O p P o Pa >i o H P xG O-H a oi P <O X P X P P3 u ax) a p 43 3 P G > a SEUOOE < D CO <L> XH aO X S CM ' 03 3 a iH < CM Xo a X H < XQ > H as ts n e .r)m -gAa IdV inate (See m a .t en < a oa P 3 a o h >. 43 X a PP o P EH 43 p < oP o OP o> a-a xc o EP G -O a p o PP G a X G O'-H o h a a u HE P HpG 6 43*0 Ha > HP a-H > p o P a o P tO o o H P PO o 0 43 <M O -n 43 > -H B-H43 3 43 a P O' Pa a X X X a p a P O P OiP a a p\ c a a X) c C -H -H 043 > H P O Q a cp 43X3 P p O' PG G 43 O O C C3 43 O -H O -H -H P HP P X oX H Eh X X O H X oX o c 1 1c aE pP o a <4H > O' *ao a p p rH rH 3 3.-H O' a a H a: G o E P a H O' P .* -H P 43 43 0 H 5 i--1 sx O oC P 43 ap a aa 3 P >tO rH 43 - O' O' 3C O -H PX OO 43 E Eh a O X-H > 3 a -h a a p o 43 43 o a p o>i-H ? xaE po x rH P O' a*o a c E -h P U] rH rH O rH E -h P C O p O oo a o a p p Ox X > w Eh CJ X Eh O X a h3 P O P >i 3G arH-H PPG OP a O' rH G -rl 43-H O' O 0 p G P >i G P P o p O Gaa O'-H -H -H P 43 O' a 0 raH -aH a ao p a 3 a >i a E a p H D '-"0 X x 3 p a a O' c H 43 P O P a rH X) o ap oa -3H a O' H ap >H X <; >i C XEO oC P *M cju n P a rH CM <H a 43 P C < a Gaao h ao Xo X rH O rH CM CJ rH <N X ;/> M X X X a< a u Q a< X * M acsot of w s e o D is p o s asbest CM O CM w u< CU co a H<os w O 2 H 2 M < Eh 2 O 01 CoQ Eh CKO to (0 < Ob P So*-> s tz H2O EH H .O4 2 wa f I m o pn n =ro*o1o* CO P0n irHidl M 0 Pid s DC" id Pc o 01 M O-H P id ra P 0) C po au id rr--HI TraH3) id Pa) 0 id o rH riHd C a. -h ca > <W o +a0> 0 on c0 E id P 0 tn 0 PH 3W cIOQuPeId *0cH t|H tJ> 0 a p p 3a 0 a oo 0 o cu c H 0 Si p c. << S to o f<ugu CPPyid -4hOPi pid Oo Oc -pQw| o . o_ op pto Pid cId Qa,.C A lc o a conta mu cts s t( i .kee e. ,p dnooct iu f imcean tt ia toion n o pr f o EPA cedu r e s e t c .) made by o u ts id e c o n tr a c to r s . J. E. SANDER PITTSBURGH OFFICE - 6 MR. E. E. RUMBERGER PITTSBURGH OFFICE --6 1982 October 15 RE: REMOVAL OF ASBESTOS CONTAINING PRODUCTS I have attached a rough draft outlining control procedures for removal of asbestos containing products. I thought this might organize our thoughts for the upcoming meeting with the Materials and Standards group next week. The Asbestos Information Association is sending me some literature concerning encapsulation of fibers via application of a spray coating to existing material. I want to review this material before incorpor ating it into the draft. I welcome all comments. It might be beneficial for us to sit down and discuss the draft prior to meeting with the engineers. 3^0.7u 3. E. SANDER JES:sc f'/lcsCtunJt' REMOVAL OF ASBESTOS CONTAINING PRODUCTS General S Various forms of asbestos products were previously used extensively as thermal insulation in duct work, high temperature wiring, furnace lining and general fireproofing. Because of the potential health hazards involved with excessive exposures to asbestos fibers, special precautions must be followed to prevent asbestos exposure of either the worker or of non-involved employees. Prior to renovation or demolition, every project should be reviewed / y for potential asbestos containing products. If asbestos products are suspected, a sample of material should be tested for positive rwH- li&idU-r- Lab identification. is capable of making this determination. If the test confirms the presence of asbestos, the precautions out Jf ' /h lined for asbestos removal should be followed. AC&IH aJS2 o'" in / r. diScuSCio/! c* coosr'n' -to cnc<3 oC qc oJi'! o.s a. c a.boix.f .or mart r\a_i- ha <zcoc{ <U1\ (V; re t r, o v ^ < i/ |W. iwc'ivdv: c /c ii Permissible Exposure Levels ^OSHA 1910.1001 states) that no employee shall be exposed at any time to airborne asbestos fibers in excess of 10 fibers, longer than 5 micrometers, per cubic centimeter of air. The 8 hour time weighted average airborne asbestos concentrations of asbestos fibers to which any employee may be exposed shall not exceed 2 fibers, longer than 5 micrometers per cubic centimeter of air. (Refer to Alcoa Material Safety Data Sheet #40 for additional information.) Air monitoring for asbestos fibers should be performed by an Industrial Hygiene representative to assure that Alcoa employees are not overexposed as defined above. . ^ At III Personal Protective Equipment That employees engaged in the removal or demolition of structures or equipment covered or insulated with sUW- asbestos, 4j&SUk. be provided with respiratory equipment and special 4Aju 4Ajl l (J > clothing. Employees should be instructed in the potential health effects of asbestos, and the control methods to be utilized to circumvent such consequences. CS^ Av AAs&jl- Q/JLAO A. Respirators A NIOSH approved air purifying or type "C" supplied air respirator (shall be provide^ to reduce the concentration of airborne asbestos fibers in the respirator below the exposure limits prescribed in ,x Section II. Respirator usage is governed by(0SHA 29 CFR 1910.134) ijl which details the components of an acceptable respirator program. B. Clothing (S- * i The employer shall provide, and require the use of, special clothing, such as coveralls or similar whole body clothing, head coverings, gloves, and foot coverings for any employee exposed to air-borne concentrations of asbestos fibers, 10 &hjur(c_c, which exceed the eeil-rng leva! prescribed in Section II. cX1 \ M Disposable coveralls, gloves, hair covering (under hard hats) and respirators approved for asbestos shall be worn at all times when work is in progress The coveralls are to be taped at the ankles and wrists. All disposable clothing is to be removed and discarded each time a workman leaves the work area. Shoes must be wiped with a damp rag or vacuumed so that the area outside the enclosure is not contamina ted. Before leaving the contaminated area for any reason, the workmen shall vacuum the protective clothing, remove the head covering, unzip the coveralls and carefully peel them off, with gloves and shoe coverings remaining attached. The respirator is removed last. The disposable clothing and used filter cartridges shall be disposed of in plastic bags, appropriately labeled for asbestos waste. Respirators shall be cleaned and sanitized at the end of every shift. Workers must wash all skin surfaces that have been exposed to asbestos before eating, drinking, smoking or leaving work. Any water that is used for these purposes must be placed in plastic bags and then into the drums with the contaminated clothing. No smoking or eating is permitted while irv. OL/VCjO_ . fn tho enclosure. Work Practice Controls A. Restricted Area The asbestos work area should be delineated with tape.or rope \n Mkl, U-Sv -nLcS*. Si<3yn.<; and warning signs(conferming-to-the requirements of 1910.1001 p (1) (ii) should be posed at the work entrance. Entry should be restricted to authorized personnel only wearing the protective clothing prescribed in Section III A & B. i Plastic curtains draped to enclose the work area, should be used to contain the asbestos fibers jjdasfn B. Wet Methods Asbestos should be handled in a wet state: insofar ass. possible . ) (-r&\ to prevent the emission of air-borne fibers.yj Asbestos must <* YL c^nMx-<fU^} never be dry swept. Local exhaust or wet methods should be " ', employed in collection of fibers. C. rt-bz^cAoT-lj Tools 1',/yJsrUtSTTl*^ [\tkjfWJJL -b YMurid- d ' . fijf* y^ted and power-o^grat^--t^ols used in the operation which may result in^^^Fwoetion or release of asbestos fibers in exces^^f^-The limits prescribed in Secti-an. 1I, should be provided with local exhaust ventilation systems. VII. Outside Contractors It is imperative that the outside contractor know he is dealing with asbestos. It is recommended that a copy of Alcpa Material ct' pi-a/y^J-a^rd Safety Data Sheet No. 40 (asbestos^be included with either the specifications or the order, as well as verbally calling the contractor's attention to the hazard. ^ oJlurtucy (Xsb^<re^^rirvJl' While Alcoa has no direct responsibility under the asbestos section of OShA 1910.1001 for contractor employeeSy/(t is Alcoa's respons ibility to^see that the contractor furnishes appropriate personal protective equipitioqt as outlined inaction III. he contractor shall be requ.rr^d to post caution signs around the area as outlined in 0SHA/1910.100lYdl(i)(i) and (ii). f pieces and particles that may contain asbestos If4*ai~dtsposi t+on-of-tb e~mat e r i a 1 ~sfi'aT1~"be-a5-co v ered -by -RG RA-} -- Alcoa jshould monitor nearby Alcoa-work stations duri lor renovation to ini iefineain Section INTER-OFFICE COMMUNICATION OFFICE Is*- VI J J /} /' M s~~\ / / / 'rSs/JjllvCerfdLi J /H-A&CJ2 '/2dejJ& A~w*J MESSAGEt office /Jy^Un^ ?f-f i. ~ ' /-- .......iifrnr-.r s-/r 'AtL&LfaA^ .pjp__ 4l$uJ~ fj&t-k--'jb f&tn--.J&y-'--^ Jia* fUiit___ J&. ^ ~ 40&lA___. V ^IaA. ^4^- UL&.____d2^lr ____ yg?--- Jt kJ?____ AcM&e Mat uii&_____ i(.oiJP @ Pi/nd lX i)&tr W4c /him. t>/?fl Q7UtjcJL /7*<0-lQ. XifcuLj , ORIGINAL SENDER DO NOT WRITE BELOW THIS LINE ry REPLY* DATE SF 2848 SIGNED . ORIGINATOR: DETACH THIS COPY, SEND REMAINING SET, CARBON INTACT, FOR USE OF REPLIER.