Document KJV2D6d20R6OJBaDnk7pdbev0

AUG 1 $ 1980 . r:\;liS^feli^cc:.;:v,, : ^REQUEST FOR TECHNICAL SERVICE - f 4 . -,*4%8 PATEffJ^f 8August 1980; ;?&*?:*?*- * ^v-^Vfv^^V A'i-'Eschcnboch' : . ' .' fJWMJFACTURIN(^APPROYALS: A~. Csehenbaefi ^ -appr ' V. ';;' . ,'-'.' ^%;v: ; ' ' ' -;.v /'': ' 7 ^V'v-vj-: --.'i'-r/v .7 '"" ' `>"7 V ;" - >7'V ` * ' ` ' *' -'; - .' ' i ' .'* j-.;- v; ! ' - PROBLEM TITLE: Ceiling Material Evaluation --- Asbestos'Content SIGNIFICANCE: Ceiling material that contains asbestos must be removed to control any employee exposures, and to comply with OSHA regulations. SPECIFIC OBJECTIVE: Determine whether or not the ceiling material supplied from the Organic Chemical Plant, Nashua, N.H., contains any asbestos. SUGGESTED APPROACH: v-ray DEADLINE (Last day information will be of value): 2 weeks OETAILS OF PROBLEM: Sample supplied to lab in bottle identified as "OCD-NTA Plant." \ [ R000524^ ACCEPTED BY RESEARCH DEPT.: ASSIGNED TO: T~P. r--<^/ /^ DATE: V'/f /,K, ADDITIONAL COPIES: Original to Library! H.C.Dueckcr, H.A.Eschenbach 15 159353 . .. ' . REQUEST FOOEClWir . SERVICE" ^" ' '^v. .&* >hire,:was.ex ithod.andfo rMjt e. ^ ^ V'' NUWJER: 69609 GROUP: -IOV ACTUAL COST: S70.0Q DftTE: Aiigiicf^Tt;^lQfln :.V Ki<-. V " ' V'-'+ww . ? :$* iih /- ./:* 3` 1 --- --. jv . wmwiwi !>*-_io_ N^shud i ' ii'2 -'^rayjdfffractlo^iielfti^^ Ifricro-3%j W- - tEXXOPFEBRTIMVEgrNitTTAut \ K XRD Analysts :. -..v. :. '.XV;>i's .. ; - The crystalline-fibers wereidentified by x-rays as chrysotile. v:, v.-' ' : 2. Petrographic Microscopic Examination A portion of the sample was heated in an oven 9 4S0C, overnight, to bum all the organic fibers if present. Then the retaining material was wet ground lightly with ocetone in an agate mortar, and immersed in oils with R.I. 1.545, 1.520 for microscopic examination at 100X and 430X. Two kinds of fibers were identified, one was chrysotile and the other mineral wool fibers. .......... Reference: XRD Misc. - 350. JCY:mlr ; R000525 *, 1515935'* CONSTRUCT wa" mDUCTsff SEP 3 0 19& NUMBER: 69629 DIVISION -< ' REQUEST PQR TEOWlCAt SERVICE : j _ '-~U >X-.- ___ "'v. V$ t- v x >-? .'*. ,_______... PROBLEM TITLE: Jrownwntal Evaluation - Air - Fibrous Materials. SIGNIFICANCE: *'->* Jt The evaluation of workplace air on a periodic basis Is'necessary to comply with the air sampling section of the OSHA Asbestos Standard. SPECIFIC OBJECTIVE: Determine fiber counts for filter media. SUGGESTED APPKQAOi: Phase contrast microscopy. DEADLLSE (Last day information will be of value) 2 weeks. M^ } DETAILS OF PRCBLBi: Evaluate samples from 0C0 Nashua, N.H., plant -- N-l, N-2 Samples collected in area where sprayed on asbestos (chrysotile) is peeling off the ceiling. ACCEPTED BY RESEARCH DEPT, y*.^ t^ DATE: <Y/ff\ 70 , ASSIQ-.'ED TO: B. ADDITIONAL COPIES Original to Library; H. Duecker , F.W.Eaton, T.E.Hamilton kJ.U.Wolter. E.S.Wood * ti.-.vtv/j j ; u i i - { ROOOS2<s'. 15 159355 REQUEST FOR TECHNICAL SERVICE -' ' ' - ' MUfWkiulay^^ U3UC3 CROUP:***'- -*'Organic Chemical niw ACTUAtfcCOST; , Siss nnV v /" nmn^nm, w: nx-io*^ "1|.. .'^r' t&A- -f tfWbrt V 3fe. ' .J. **: Tuoenglneering saapleswere received 'fnm |BSbSZ'15c . vj-.- 'Yei^cleaal: - '- - -i V'S DATA AND ANALYSIS: . &'*% y*-J * Rea The results are as shorn on the attached Air Sailing Sheet. :' '' '*. &3&j>:?y*:.. BJO:nlr attachment >*"??Sl-^pl|(!pri,ll!pU. HIV I IJ W JUIrt m~r~- I '^0 3032? * 15 15 43 56 t' ..^S^4KYQeje*iiaic*%rk-\ i*.:7V.C- ^attr - CAMBRIDGE ^ Vr, ''\j J. McCarthy/Nashua^ ***- T. E. Hawl 1 ton : _Xx R.' P. Cronin/Mashual? date: 10 November 1980 : subject: -: Asbestos : ppfe X; -X*C' -5 I. Eschenbach and l collectedfasbestos air sampTesat^two locations at r#|?RaslHtt on 18 SEPT 80. Samples from the vermiculite chelate spray opera tion and from the third floor,HTA plant show that asbestos exposures nomally do not occuriMdfthi^area. I have aade,arrangenents to take #fjpKtOta$(hist* sanples lPw^wrfffcul 1 te operation.*-''Ue reconaend that .the asbestos be removed fromtheceiling of the NTA plant. Vermiculite Chelate Spray The asbestos fiber levels In this area are quite low when the individual sanples are averaged over the entire shift. The following calculations of Time-Weighted-.* 'erages (TWA) take into account the tine when the enployees are not exposed to any fibers, such as breaks and lunch. The present OSHA Permssible Exposure Level for fibers is 2.0 f/cc for an .8-hour TUA. OSHA also requires nedical monitoring if the TWA Is above '* 'Oil f/cc. Medical monitoring Includes annual chest x-ray and lung function tests. Employee TWA David Christopher Jim Fitzpatrick Ron Cloutier 0.02f/cc 0.02 0.01 The only problem that could change these TWA's would be if the employees were involved in trailer unloading for more than six hours. It is possible that the TWA would go above the 0.1 f/cc level and then we would be required to do the medical tests. Sanples 8 and 10, taken on Fitzpatrick while he was dunping bags into the hopper, are very low at approximately 0.03 f/cc. The only job they do that Is dusty is the unloading and I have made plans to take total dust samples on this job. NTA Plant - Asbestos Ceiling Stationery air samples were collected directly below the ceiling area where the asbestos is peeling. The levels are so low that they are below [R000529 j 'Jwiw v-V > J. McCarthy -2- the detection Halt of the fiber counting method. However, asbestos is peelingfoff the ceiling and It is possible that soae employees may be exposed to concentrations of asbestos. Herecoamend that you consider removing the material. He are available to make reconwndations on how to do this. In brief, the employees in volved* fn the removal would be required to wear airline respirators and disposable uniforms. During the clean up. no other employees would be allowed ,1a the area. For more details, contact HAE or myself. . TEH/cs attachments vs***-- T. E. Hamilton ywijff.m 5HV9'V5V'- I R000530 15 153359