Document M4G6KydamOqBQY40g2dMBMMaL

Monsanto rmom inamf. m L J. M. Harris - Chocolate Bayou Plant OATC SUI ICCT RrrfNrNCC TO August 8, 1972 Use of Asbestos at Chocolate Bayou E. N. Brasfield cc A. W. Adams R. E. Belden^^* B. R. Bradshaw H. C. Clark P. H. Dupre C. H. McComb R. L. Miller - O.M.C Since the O.S.H.A. has been enacted, the following activities and plans are in progress at Chocolate Bayou concerning insulation. 1. A study has been completed on what types we use. It is estimated that approximately 60% of all insulation used in the plant contains asbestos. (See attached memo.) 2. A request has been issued to Engineering Services to determine the feasibility of eliminating the use of asbestos at Chocolate Bayou, in turn. Engineering Services referred the study to R. L. Miller of St. Louis. Information received indicates St. Louis is to issue a standard bulletin describing suitable alternates. 3. O.S.H.A. approved respirators have been purchased for the insulators and are in" use. 4. The fabrication saws in our insulation shop have vacuum exhausts in operation now. A dust collection system for these saws outside the buildings is in the planning stage, with completion expected September 1, 1972. The feasibility of installing a vacuum system above the saws is also being evaluated by our group. 5. A vacuum cleaner suitable for clean-up in the fabricating shop is being sought. 6. Special clothing (coveralls) requirements are to be dealt with as follows: a) Fabricating man in the shop would require clothing. b) Only major removal jobs in the field would require coveralls, such as: stripping of an exchanger head or shell. Removal of insulation on flanges or for a tie-in would not warrant the use of Special clothing. 6113 17627 BGQ2287 E. N. Brasfield August 8, 1972 c) Any large fabrication in the field where sawing and fitting is required would apply. 7. Caution signs and labels, as required by the standard, have been purchased and installed. I feel that any mechanical item or facility revision required should be provided by Monsanto. Other items required in the standard should be complied with by the contractor. Some of these are: 1. Monitoring for exposure to asbestos every six months. 2. Medical examinations at the beginning and end of employment. 3. Setting up program for maintaining respirators as per A.N.S.P.R.P. #288.2-1969. 4. Enforcing work habits as per requirements outlined in the standard. The Safety Department would appear to be the most likely source for monitoring the asbestos concentrations in our operation. Through our Purchasing Department, we have received information from the Owens-Corning sales representative (manufacturer of KayLo) that by the end of 1972 they will have an insulation on the market that will exceed KayLo in every respect. It will be asbestos free. B. R. Bradshaw is working with our Texas City plant on securing a sample of this material. Based upon corporate and Federal Government guidelines to date, I feel the approach would be as outlined. To rush into a program that would cost great sums of money to revise our facilities and methods of fabrication at this time, is not considered necessary in order to comply with the intent or spirit of the new law. Any comments or suggestions would be appreciated. JMHtlm J. M. Harris 6113 17628 BCC2288 tfpnsanta' OM |N*M| ft LOCATION * r j. M. Harris ~ Chocolate Bayou Plant tcrcftCNec June 26, 1972 Use of Asbestos a~~ Chocolate Bayou Clint 'Britt- C: A. W. Adams R. E. Beiden H. C. Clark F. H. Dupre C. H. McComb R. L. Miller - O.M.C. Please find attached a copy of the article highlighting the hazards of exposure to asbestos. I would like to request an Engineering study to determine the feasibility of eliminating the use of asbestos at*, Chocolate Bayou. The most frequent use of this material in our plant isj 1. Ethylene Furnaces - Weber #48 - contains asbestos used between brick and roof of Ethylene furnaces. Mixed up like mortar and sets up hard; Installed by J. W. Leavesley. 2. Insulation used in the plant 1. Thermo-Bestos .... Contains asbestos 2. Kaylo .............................. Contains asbestos 3. Mono-block............... Does not contain asbestos 4. Carey-temp ................. Does not contain asbestos l The Thermo and Kaylo are used for hot service (high temperatures) and all fittings no matter if temperature is hot or ambient, due to the crumbling characteristics of the Mono and Carey. It is also used on straight runs sometimes due to the same problem. If there is any assistance our group can furnish, please let me know. JMH:lm$ attachment J. M. Harris - __ 6113 17629 BGCS289 * : ^ W s ....................... ( /^D Cj'-fU' /&./Z/tZcu, r cu^ ACC- 1 && / /6m. y^-% ^O-ji^q.--l t^-duyt^, ^) ^fx> S*<^-*-r^33Cw - &/XU-. (fJ (?) dds-j/P* s~11 *-> /!**$ &&*dc*d!tr~L-. C4$ndrd~1 '0r&*-J (o~f t<^\ ^ ^-J^i&4A*st~ c*4sry&&-torr"^ S*j**fi C&^^^JUisirJLil^u. # ^ /* CH^C< aMd> C^u/ ~dt LAAjlM' Jui Li>Wi" j2l*'-4LtU*| O^L/uC~*~. -- UmJJ tyS >$--> ^ -H t <^c u/~t do CL^-^--y Ad-Ct-*vf~ f* sjJ^L-O s tZLfr^jJdl &s2'dz'2-dtr^--^ t******` >J-d,P --.<.dl^_ ~d<oiVl. SdUszdd <d-r^ * *^r**>Xr***x`j G*~P <^s-df^idd df {Jajl 'jydd /dfc^ho Uttyl/JU o* ^ - . ri>?e*t_ RCC2230 6113 17630 cc /$p*u3&4/*y, S?S^lrsJar... /) Us& 6*SrtAz<L/ y/4^ &!.+/ CAfrtms *"*/$**<& /fc****^ <.-jrx^, __________ &u<n __ J3/SScL-e* C* ~ ________________________ ___ _ ~) jne^uf*~Jo,,-po,*+tSs/ tS J&Z-//*-*- ~7Z T-+tJ____ /`^W/k: ^_________ __j&* K*^iA..... 4'**? 7% J&fT *44jj4,/*'<S0 <>A? _ ______________________________ _ .3). -/2?yysA-f <&<er -/t*J Co*5> . 7A/L*-e 4*r*.Ct /*? tPo /&/&&/~z-'S- --- . J7s/f 6113 17631 ' *Il32p RULES AND REGULATIONS . 1910.93 Air contaminants. Taui O-S--MrxuiAi Btffl Mwhn Mppct U|AI> HIU-.i: 0utlliir Viuni iro|i<niMr).......... MS' MugAI* QtuiK lloUl lu.t) *SI0H- *<>+ CibU'alil*: P*MUif falur nlnitftlrU trwa Ik* ruoiil *r ana fermatet hr nuru. Tnil-iH*r r**Klk*v*la* nUculaiAd Iran Che hr. niukir hr quart*. Intturttnj Miami lUaiimuama* MrIk........... . %SJO,+3 Ei!knl<* Orwllan Id r IjIIIii.- ultra): Aina......................................... *m|lnur.......................... n i Virtbnii SrafMi* tnatcrun. i*au Uuti fractiou k-* itan k; K>i>............... Vvr rntff lhatt if; *K>;.......... Iih ri or N'nfaunff T)u*t: SntCtHMI. Tt*u!Uurt.................... . a ias Si Mm&M* or lOnifcM* f;siu.*+a IS Aments id UmfcM' si St t*c(nA: ifAii-mirtriiwiiitKovntla|KriirotKrs*H--i per et:Mc partM** jvrre.e. Milit'ifi* W pamd* p*r cut-ic lor.: ef air. un >amp:i-5 cmmtrti by lu:h:*fKt<! irrhuio. * Tin* prrrrutocf of crystalline l*ra tn (hr for;:u*a fc tin* Aitiooiit ri*t'rn:tiH*d from air-tv*!'* fianip***, tn tho* iit5tumnt tu which otb*r iut*t!io*l% tuv Im^i >h*w n u I* nppliciblf. * As iM'Tiimn-t! |gr tin* tttrnit>mne fii*T untUi at 43" X |4.:w cmitr;v*i rua*:iiincution. > li.uli coumiirutiufl ami rM*rr.*nt niurtr for t! RIHlU':iiniti of lbi> built un* U> !*r 4|.*i**r:niiwl from tin frji'Uuii pa*MU|; a litr^'klur w:ih ii*r fviwu'iii rlhir.K'ttt!>tHrs: riwiyttuiuir uuil ilriwit)* *% &I'.SS t.tf lv yrfei.'tur A75il 13 V *1l* !:o*.iur*ni*itts umliT tills 0*11* T fiT to t!*e ti* *f o:i AK<` If Um* r*<j*ir.iW* fraction of uu Iti-1 i- with fl MUK tb* ficmrcnrri^ioNolini; tu il.ai 4 J.4 ill I lie Liblv (urcvul liiul U M*. 2. A new 11910.93a is added to Part 1910. reading as follows: 1910.93a Abe*to*. a) Definitions. Per the purpose of this section, il) "Asbestos" Includes chtysotilc. amosite. crocidolite. tremolite. anthophjlllte, and actinolite. <2i "Asbestos fibers" means asbestos fibers longer than S micrometers. Permissible exposure to airborne concetitrations of asbestos fibers--(1) Standard effective July 7. 1972. The 8-hour time-weighted average airborne concentrations 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 pre scribed in paragraph <e) of this section. 2> Standard effective July 1. 1976. The 8-hour time-weighted average air borne concentrations of asbestos fibers to which any employee may be exposed shall not exceed two libers, longer than ft micrometers, per cubic centimeter of air, as determined by the method pre scribed in paragraph (e> of this section. (3) Coiling concentration. Mo em ployee shall be exposed al any time to airborne cencentrations of asbestos fibers in excass of 10 fibers, longer than ft micrometers, per cubic centimeter of air. as determined by the method pre scribed in paragraph <e> of this section. <c> Uethods of compliance--(1) En gineering methods. (1) Engineering con trols. Engineering controls, such as. but not limited to. isolation, enclosure, ex haust ventilation, and dust collection, shall be used to meet the exposure limits prescribed In paragraph (b) of this section. Mil Local exhaust ventilation, (a) Local exhaust ventilation and dust col lection systems shall be designed, con structed. 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 in corporated by reference herein. See 11910.6 concerning the avail ability of ANSI Z9.2-1971, and the maintenance of a historic file in connec tion therewith. The address of the Amer ican National Standards Institute is given in i 1910.100. (iil) Particular tools. All hand-op erated ar.d power-operated tools which may produce or release asbestos fibers in excess of the exposure limits pre scribed in paragraph of this section, such as. but not limited to. sans, scorers, abrasive wheels, and drills, shall be pro vided with local exhaust ventilation sys tems in accordance with subdivision (ii> of this subparagraph. (2) Work practices--(U 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 fibers in excess of the ex posure limits prescribed In paragraph (b) of this section, unless the usefulness of the product would be diminished thereby. lii) Particular products and opera tions. No asbestos cement, mortar, coat ing. grout, plaster, or similar material containing asbestos sliall be removed from bags, cartons, 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 asbestos fibers in excess of the limits prescribed in paragraph (b) of this section. ilii) 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 in sulation or jroverings shall be provided with respiratory equipment tn accord ance with paragraph <d)(2)(Ui> of this section and with special clothing in ac cordance with paragraph (d) (3) of this section. <d) Personal protective equipment-- (1) Compliance with the exposure limits/ prescribed by paragraph (b) of this sec tion may not be achieved by the use of respirators or shift rotation ef em ployees, except: ti) During the time period necessary to install the engineering controls and to' Institute the work practices required by paragraph <c) of this section; fill In work situations in which the methods prescribed in paragraph (e) of this section are either technically not feasible or feasible to an extent Insuffi cient to reduce the airborne concentra tions of asbestos fibers below the limits prescribed by rermgraph (b) of this section: or till) In emergencies. (lv) Where both respirators and per sonnel rotation are allowed by subdivi sions (i). fill, or fill) of this subpara graph. and both are practicable, person nel 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 ap proved by the Bureau of Mines. Depart ment of the Interior, or the National In stitute for Occupational Safety and Health. Department of Health, Educa tion. and Welfare, und-r the provisions of ' 30 CFR Part 11 (37 FJL 6244, Mar. S3. 1972). and shall be used in accordance with subdivisions M'. ill), (ill), and (iv) of this subparagraph. #i) Air purifrna resp'rators. A reusa ble or single ue air rurifving respirator, or a respirator described In subdivision lii) or iiii) of this subparagraph, shall be used to reduce the concentrations of airborne asbestos fibers in the respirator below the exposure limits prescribed in paragraph of this section, when the ceiling or the 8-hour time-weighted aver age airborne concentrations of asbestos fibersarq reasonable exr'ected to exceed no more than !0 time? those limits. Mi) Powered air purifying respirators. A full facepiece powered air purifying respirator, or a powered air purifying respirator, or a respirator described in subdivision iiii) of this subparagraph, shall be used to reduce the concentra tions of airborne asbestos fibers in the respirator below the exposure limits pre scribed in paragraph tb> 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. (iiii Type "C" supplied-air respirators, continuous flow or pressure-demand class. A type "C" continuous flow or pres sure-demand. supplied-air respirator shall be used to reduce the concentra tions of airborne asbestos fibers in the respirator below the exposure limits pre scribed in paragraph tb) of this section, when the ceiling or the 8-hour timeweighted average airborne concentra tions of asbestos fibers are reasonably expected to exceeJ 100 times those limits. Uv> Establishment of a respirator pro gram. (a) The employer shall establish a respirator procram in accordance with EEOUAl tECISTEt, VOL 37, NO. 110--WEDNESDAY, JUNE 7. 1973 6113 17632 BGC2232 $1:8504 REFERENCE FILE Table Z-2 (c) Methods of compliance--(1) en gineering methods, <i) Engineering con Acceptable maximum peak abort trols. Engineering controls, such as. but Malarial 8-hettr ttma v-elghted average Acceptable ceding eoocaotrauon tba acceptable ceiling concentre* tlon (or an S-tuxir atallt. ------------------------ Coocaotimtion Maximum duration. not limited to. isolation, enclosure, ex haust ventilation, and dust collection, shall be used to meet the exposure limits prescribed in paragraph (b) of this section. Brunt (ZT.4-1965)........................ ............. 10 p.pjn...............28 p.pjn............SO p.pjn.. beryllium and brrrlUum compounds 2*Al-------------- ti*JUK________28n7M*.. (Z37.29-I970). .** Cadmium fume (Z374-1970)................ 0.1 mg./M>___... 2 my./IP______ ____________ Cadmium dust (Z37.8-1970)................. 0.2 mf./M1.--.__ 0.8 mi/U1_________ ____ .... Carbon disulfide (Z3T4-1968) 20 p.p.m---------- 30 p.pjn____ __ 100 p.pjn. Carbon tatraehlonds (747.17-1987)________ 10 p.pjn...............28 p.pjn.._____ 309 p.pjn. Ethylene dlbromlda (ZJ741-1970)_________ 20 p.p.m._____ JO p.pjn........ *0p.pjn.. Ethylene dlehloridt (Z3T.21-1969)_________ 80 p.pjn..___ _ 100 p.pjn._____ 300 p.pjn. . lOmlnutaa. . SOmlaataa. . Do. 8 mlnutra in any hoots. . 8 mlnntas. . 8 mlnutas la (ii) Local exhaust ventilation, (a) Local exhaust ventilation and dust col lection systems shall be designed, con structed, installed, and maintained in accordance with the American National Standard Fundamentals Governing the Design and Operation of local Exhaust any J hours. Formaldehyde (ZS7.I6-19ST)-............. 3 p-pju________ < p.pjn.......... .... 18 p.pjn_______ JOmloutee. Hydrogen fluoride (Z37.2S-1969) i....do......................... Systems, ANSI Z9.2-1971, which is in corporated by reference herein. Fluoride an dujt (747.53-1969)_____ ______ "224 mgs./M>__ _______ ....._._._._...... Land and Its Inorcanlc compounds (ZS7.11- 0.2 mg./M1_____________ ________ ___ ______________ 1989). Mathyl chlorlda (Z37.1S-1969)....................... IX p.p.m........ 200p.pjs...___ _ 300 p.pjnI mlnutas In my S hours. Methylene Chlorlda (ZI74-1989).................. 800 p.pjn........ 1,000 p.pjn...__ _ 2,000 p.pjn......... 8mlnutas In my 2 hours. (b> See 11910.8 concerning the avail ability of ANSI Z9.2-1971, and the maintenance of a historic file in connec tion therewith. The address of the Amer ican National Standards Institute is Orjano (alkyl) marcury (Z3740-1999). Slyrana (ZJ7.1S-1969)............................. lOOp.pjD........ . 200p.|im........ . 1 mlnutM In -nr 3 hours. given in 11910.100. (ill) Particular tools. All hand-op Trichloroethylene (ZJ7.19-1967).... Tatrachloroathylaoa (Z3742-1987). Toluans (ZJ7.12-1967)................ Hydrogen sulflds (Z37A-1S66).. 200 p.p.m......... 300p,pjn_____ . 20 p.pjn......... 8 minutes in any 2 hours. uirlboon. 10 mlnutas* 10 mlnutas one* only If no other measursabla axpotura occur*. erated and power-operated tools which may produce or release asbestos fibers in excess of the exposure limits pre scribed in paragraph (b) of this section, such as, but not limited to, saws, scorers, abrasive wheels, and drills, shall be pro vided with local exhaust ventilation sys Marcury (747.8-1971).................................... Chromic acid and chromalaa (Z37.7-1971) . ... ImtJlW................ ........do s............. tems in accordance with subdivision (11) of this subparagraph. (2) Work practices--(i) Wet methods. Table O-t--Mineiui Dusts Aerodynamic diameter (unit density sphere) Percent passing selector Insofar as practicable, asbestos shall be handled, mixed, applied, removed, cut. Substance Mppcf Mg/M> scored, or otherwise worked in a wet Ullca: ICrystalUne: f Quarts trupirable). Quarts (total dun) 250 < 10ms,'M' 7iS10i+S a^oSs1m0t;jMJ*>. 2 90 ZS 75 U 00 &0 28 10 0 The measurements under this note refer to the usa of state sufficient to prevent the emission of airborne fibers in excess of the ex posure limits prescribed in paragraph (b) of this section, unless the usefulness of the product would be diminished thereby. Crlstobalile: Use X the value calculated from iha %S,Ori-2 an A EC instrument. If the respirable fraction of coal dust Is determined with a 31 RE the figure corresponding to that of 2.4 Mg/M1 in the table lor coal dust is 44 Mg/M>. (ii) Particular products and opera tions. No asbestos cement, mortar, coat count or mass formulae (or quarts. Tndymite: Use 15 the value calculated from the for mulae for qusrrx. Amorphous. Including natural diatomeceous earth................ ^ta^T^Sli^nS^For the purpose of ing, grout, plaster, or similar material containing asbestos shall be removed from bags, cartons, or other containers this section. (1) "Asbestos" includes in which they are shipped, without being 20 ang/M chrysotile, amosite, crocidolite, tremo- either wetted, or enclosed, or ventilated %S10i lite, anthophyllite, and actlnollte. (2) "Asbestos flbezs" means asbestos so as to prevent effectively the release of airborne asbestos fibers in excess of the Silicates (less than 1% crys talline silica): Mica............................. 20 Soapstone................... 20 Tslc(non-asbostos-form)... 20* Talc (fibrous). Use asbestos limit .................................. Tremolitefsce tale, fibrous) Portland cement.... 80 Graphite (natural).................. 18 Coal dust (respirable fraction leu than 8% SiOi)..................................... For more than SlO_________________ 2.4mgfH> or 10m*/M> Inert or Nuisance Dust: Respirable fraction___ Total dust................... . %S10r+2 IS 5mgfM> 80 18m/M> Note: Conversion fartors-- mppelxMJ-mil!ion panicles per cubic meter --particles per c.c. * Millions of particles per cuble foot of air, based on implnjter samples counted by llrht-field technics. ' The percentage of crystalline silica in ins formula Is the amount dele-mined from air-bornt samples, eaccpl in those instances in which other meiboda have been shown to be applicable. `As determined by the membrane filter method at t30Xpnaso contrast magnification. " Roth concentration and percent quarts for the appli cation of this limn are to be determined from the fraction massti.f. a sixe<seiectnr with the following characteristlca: B* Containing < 1% quarts; l( > V/, quarts, uso quarti fibers longer than 5 micrometers. (b) Permissible exposure to airborne concentrations of asbestos fibers--(1) Standard etective July 7, 1972. The 8-hour time-weighted average airborne concentrations 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 pre scribed in paragraph (e) of this section. 12). Standard effective July 1. 1976. The 8-hour time-weighted average air borne concentrations of asbestos fibers to which any e&fita(9MS!!&r be exposed shall not exceec^^^^^g longer than 5 micrometers, (W*CUDIc centimeter of air. as determined by the method pre scribed in paragraph (e) of this section. (3) Ceiling concentration. No em ployee shall be exposed at any time to airborne concentrations of asbestos fibers in excess of 10 fibers, longer than 5 micrometers, per cubic centimeter of air. as determined by the method pre limits prescribed in paragraph (b> of this section. (ill) 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 of demolition of asbestos in sulation or coverings shall be provided with respiratory equipment in accord ance with paragraph (d) (2) (ill) of this section and with special clothing in ac cordance with paragraph (d> (3) of this section. (d) Personal protective equipment-- (1) Compliance with the exposure limits prescribed by paragraph (b) of this sec tion may nqt be achieved by the use of respirators or shift rotation of em ployees, 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; (11) In work situations in which the Halt. scribed in paragraph (e) of this section. methods prescribed in paragraph (c) of g^!3 17633 Occupational Safety & Health Reporter [Sec. ju'L# TOXIC SUBSTANCES 31:8305 this section in either technically not the safety or health of the employee or (ii) Sampling frequency and patterns. feasible or feasible to an extent insuffi other employees will be impaired by his* After the initial determinations required cient to reduce the airborne concentra tions of asbestos fibers below the limits prescribed by paragraph (b) of this section; or (lii) In emergencies. (iv) Where both respirators and per use of a respirator. Such employee shall be rotated to another job or given the opportunity to transfer to a different po sition whose duties he is able to perform with the same employer, in the same geo graphical area and with the same senior by subparagraph tl) of this paragraph, samples shall be of such frequency and pattern as to represent with reasonable accuracy the levels of exposure of em ployees. In no case shall the sampling be done at intervals greater than 6 months sonnel rotation are allowed by subdivi ity, status, and rate of pay he had just for employees whose exposure to asbestos sions (1), (11). or (lif) of this subpara prior to such transfer, if such a different may reasonably be foreseen to exceed graph, and both are practicable, person position is available. the limits prescribed by paragraph (b) nel 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 ap proved by the Bureau of Mines, Depart ment of the Interior,'or the Nation^ In stitute for Occupational Safety and Health, Department of Health, Educa tion. and Welfare, under the provisions of 30 CFR Part 11 (37 F.K. 6244, Mar. 25. 1872), and shall be used in accordance with subdivisions (1), (ii), (ill), and (iv) of this subparagraph. (1) Air purifying respirators. A reusa ble or single use air purifying respirator, or a respirator described in subdiyision (11) 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 aver age 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 (lii) of this subparagraph, shall be used to reduce the concentra tions of airborne asbestos fibers*in the respirator below the exposure limits pre scribed in paragraph (b> of this section, (3> Special clothing; The employer shall provide, and require the use of. spe cial clothing, such as coveralls or similar whole body clothing, head coverings, gloves, and foot coverings for any em ployee exposed to airborne concentra tions 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 ex cess of the exposure limits prescribed in paragraph (b) of this section, the em ployer shall provide change rooms for employees working regularly 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. (lii) Laundering: (a) Laundering of asbestos contaminated clothing shall be done so as to prevent the release of'air borne asbestos fibers in excess of the ex posure limits prescribed in paragraph (b) of this section. Any employer who gives asbestoscontaminated clothing to another person for laundering shall inform such person of the requirement in la) of this.subdi vision to effectively prevent the release of airborne asbestos fibers in excess of of this section. (3) Environmental monitoring--(1) samples shall be collected from areas of a work environment which are represent ative of the airborne concentrations 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 8hour time-weighted average airborne concentrations and of the ceiling con centrations of asbestos fibers. (U) 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 reasonably be foreseen to exceed the exposure limits prescribed in para graph (b) of this section. (4) Employee observation of monitor ing. Affected employees, or their rep resentatives, 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) Cau when the ceiling or the 8-hour timeweighted average concentrations of the exposure limits prescribed In para graph (b) of this section. tion signs. (i> Posting. Caution signs shall be provided and displayed at each asbestos fibers are reasonably expected to exceed 10 times, but not 100 .times, those limits. (ill) Type "C" supplied-air respirators, continuous flow or pressure-demand (c) Contaminated clothing shall be transported in sealed impermeable bags, or other closed, impermeable containers, and labeled in accordance with para graph (g) of this section. location where airborne 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 class. A type "C" continuous flow or pres (e) Method of measurement. All de so that an employee may read the signs sure-demand, supplied-air respirator terminations of airborne concentrations and take necessary protective steps be shall be used to reduce the concentra of asbestos fibers shall be made by the fore entering the area marked by the tions 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 time- membrane filter method at 400-450 X (magnification) (4 millimeter objective) with phase contrast illumination. (f) Monitoring--(1) Initial determi signs. Signs shall be posted at all ap proaches to areas containing excessive concentrations of airborne asbestos fibers. weighted average airborne concentra nations. Within 6 months of the publi (il) Sign specifications. The warning tions of asbestos fibers are reasonably cation of this section, every employer signs required by subdivision d) of this expected to exceed 100 times those limits. shall cause every place of employment subparagraph shall conform to the re (iv) Establishment of a respirator pro where asbestos fibers are released to be quirements of 20" x 14" vertical format gram. la) The employer shall establish monitored in such a way as to determine signs specified in {1910.145(d)(4), and a respirator program in accordance with whether every employee's exposure to to this subdivision. The signs shall dis the requirements of the American na asbestos fibers is below the limits pre play the following legend in the lower tional Standards Practices for Respira tory Protection, ANSI Z88.2-1969, which scribed in paragraph <b) of this sec tion. If the limits are exceeded, the em panel, with letter sizes and styles of a visibility at least equal to that specified is incorporated by reference herein. ployer shall immediately undertake a in this subdivision. b. See f 1910.6 concerning the avail ability of ANSI Z88.2-1969 and the main tenance of an historic file in connection therewith. The address of the American compliance program in accordance with paragraphic) of this section. (2) Personal monitoring--(i) Sam ples shall be collected from within the legend Asbestos ______________ Notation V Sant Serif. Gothic or Block. National Standards Institute is given in breathing zone of the employees, on Dust Bszard. V4" Sana Serif. i 1910.100. (c) No employee shall be assigned to tasks requiring the use of respirators if, based upon his most recent examination, membrane filters of 0.8 micrometer po rosity mounted in an open-face filter holder. Samples shall be taken for the determination of the 8-hour time- Avoid Breathing Dust___ Wear Assigned Protective Equipment. Gothic Block. Vi" Gothic. >4" Gothic. or an examining physician determines that weighted average airborne concentra Do Not Remain In Area V4" Gothic. the employee will be unable to function tions and of the ceiling concentrations of Unless Tour Work Re normally wearing a respirator, or that asbestos fibers. quires It. 4-29-76 / 6113 17634 Copyright C 1976 by The Bureau of National Affairs, Inc. [Sec. 1S10.1001(g)(1)(ii)] 13 3CE306 Terence file Legend notation -(1) Oen- *|thlg AibMtoi Dust 14 point Gothic. ,, ay jb Hazardous To Tour.HMlth. Spacing between lines shall be at least equal to the height ol the upper of any two lines. (3) Caution label*--(1) Labelftjp. Cau tion labels shall be affixed to* all raw materials, mixtures, scrap, waste, debris, and other products containing asbestos fibers, or to their containers, except that no label is required where asbestos fibers have been-modified by a bonding agent, coating, binder, or other material so that during any reasonably foreseeable use, handling, storage,disposal, processing, or transportation, no airborne concentretlona of asbestos fibers in excess of the 'employer shall provide or make available at his cost, medical examina tions relative to exposure to asbestos remtli--hwhla MHirr.i'h employer snail provide or make available to each of*hls employees, within 30 calendar days fol lowing his first employment in an occupation exposed to rJrbome con centrations of asbestos fibers, a compre hensive medical examination, which shall include, as a minimum, a chest roent genogram (posterior-anterior 14 x 1? inches), a history to elicit symptom atology of respiratory . disease, and pulmonary function tests to include forced vital capacity (FVC) and forced expirator^jguhigae.at A-secend _<FEV,.,). exposure limits prescribed in paragraph (b) of this section will be released. (ii> Label specifications. The caution labels required by subdivision (i) of this subparagraph shall be printed in letters of sufficient size and contrast an to be readily visible and legible. The label shall state: CumoR Contains Asbestos Fibers Avoid Creating Dust Breathing Asbsstos Dust May Cause Serious Bodily Harm (h) Housekeeping--<i) Cleaning. All external surfaces in any place of employ ment shall be maintained free of accu mulations of asbestos fibers if,- with their dispersion, there would be an excessive entratton. ) Waite disposal. Asbestos waste, a, debris, bags, containers, equip ment, and asbestos-contaminated cloth ing, consigned for disposal, which may produce in any reasonably foreseeable use, handling, storage,-processing, dis posal, or transportation airborne concen trations of asbestos fibers in excess of the exposure limits prescribed in paragraph (b) of this section shall be collected and disposed of in sealed impermeable bags, or other closed; impermeable containers. (i) Recordkeeping--(1) Exposure rec fore JAnuarr Si" 1873, and at least an nually thereafter,- every employer shall provide, or make available, comprehen sive medical examinations to each of his employees engaged in occupations ex posed to airborne concentrations of as bestos fibers. Such annual examination shall include,- as a minimum, a chest roentgenogram (posterior-anterior 14 x 1? inches), a history-to elicit symptom atology of respiratory disease, and pulmonary function tests to include forced vital capacity (FVC) and forced expiratory volume at 1 second (FEV,..). (4) Termination of employment. The employer shall provide, or make avail able, within 30 calendar days before or after the termination of employment of any employee engaged in an occupation exposed' to airborne concentrations of asbestos fibers, a comprehensive medical examination which shall include, as a minimum, a chest roentgenogram (pos terior-anterior 14 x 17 inches), a history to elicit symptomatology of respiratory disease, and pulmonary function tests to include forced vital capacity (FVC) and forced expiratory volume at 1 second (FEV,.). _ (5) Recent'examinations. 'No medical examination is required of any em ployee, if- adequate records show that ords. Every employer shall maintain rec the employee has been examined in ac ords of any personal or environmental cordance with this paragraph within the monitoring required by this section. Rec past 1-year period. ords shall be maintained for a period of at least 20 years and shall be made avail able upon request to the Assistant Sec retary of Labor for Occupational Safety and Health, the Director of the National institute lor Occupational Safety and Health, and to authorized representa tives of either. (8) Medical recoras--(1) Mainte nance. Employers of employees examined pursuant to this paragraph shall cause to be maintained complete and accurate records of all such medical examina tions. Records- shall be retained by employers for at least 20 years. [1910.1001(0(1) smended st 41 FR 11505, March 19, 1916) (2) Employee access. Every employee and former employee shall have reason (li) Access. The contents of the rec ords of the medical examinations required by this paragraph shall be made available, for inspection and copying, able access to any record required to be to the Assistant Secretary of Labor tor maintained by subparagraph >1) of this Occupational Safety and Health, the paragraph, which Indicates the em Director of NIOSH, to authorized physi ployee's own exposure to asbestos fibers. cians and medical consultants of either '(3) 'Employee notification. Any em of them, and, upon the request of an em ployee found to have been exposed at any ployee or former employee, to his physi time to airborne concentrations of asbes cian. Any physician who conducts - a tos 'fibers In excess of the limits pre medical examination required by this scribed in paragraph (b) of this section paragraph shall furnish to the' employer be notified in writing of the expo- of the examined employee all the infor as soon as practicable but not later mation specifically required by this fi days of the finding. The employee paragraph, and any other medical in shall also be timely notified of the cofro rmation related to occupational ex rective action being taken. posure to asbestos fiber*. Occupational Safety & Health Raportar I 1910.1002 'tu pitch voUtUaai fetafpretab t tans. As used in Sfc 1910.1000 (Table Z-l, coal tar pitch volatiles include the fused poly cyclic hydrocarbons which volatilize from the (distillation residues of coal, petroleum! wood, and other organic mat ter. [37 FR 247*^Effective November 21, 1972] (Editor's Notc:>>^pr the following carcin ogens' standards, nwdical examination provi sions were remandea\by the Third Circuit Court of Appeals. Provisions regarding re search laboratories wfre vacated by the court.] i 19HM003 4-Nit (a) Scope application. (1) This section at to any area in which 4-Nltrobiphe Chemical Abstract* Servipe: Number 93933 is manu- factored, repackaged. re- leased, hancj or stored, but shall not apply to ment tn sealed con tainers, fer the labeling require- mental phs (e) (3), (3). and (4) of this i .on. . (3) This seci shall not apply to solid or liquid containing less than 0.1 percent by it or volume of 4-NitrobiphenyL (b) Definitions. For Yhe purposes of this section: (1) "Absolute filter" is one capable of retaining 99J7 percent of a mono disperse aerosol oJTO.3 pm particles. (2) "Authorized emmoyee" means an employee whose duties require him to be in the regulated who has been specifically y the employer, (3) "Clean room" means a room when ioyees put on clean clothing and/or itective equipment in an environment of 4-NltroblphenyL The clean chi room shall be con- tlguous to and ve an entry from a shower room, the shower room facilities an o required In this section. (4) "Closed sysi means an opera- tlon Involving 4-: dphenyl where containment prove release of 4- Nltroblphenyl into areas, non- regulated areas, or the mal environ- ment. (5) "Decontamination1 eans the in- activation of 4-Nltrobiphi 1 or Its safe disposal. (6) "Director" the Director, National `Institute Occupational Safety and Health, any person di rocted by him or the etary of Health, Education, and Wi to act for the Director. (7) "Disposal' the safe re- moval of 4-Nil 1 from the work environment. (8) "Emergency'1means an unforoeen circumstance or setpf circumstances re sulting in the relearn of 4-Nltrobiphenyl which may result Inexposure to or con tact with 4-Ni (9) "External eni mment" means any environment to regulated and nonregulated (10) "Isolated systei means a fully enclosed structure othej than the vessel of containment of -Nltroblphenyl, which is impervious to .e passage of 4- Nltroblphenyl, and w) h would prevent (Sac. 1910.1<W3W(lglQQ2J285 I ro | n pH |Vn.Of; H rS V>