Document G5LQXD0VMYJKBLn2VR5w9VV7v

FILE NAME: US Government Contractor Regulations Including Shipyard Regulations (GCR) DATE: 1978 DOC#: GCR009 DOCUMENT DESCRIPTION: Memos from the Navy & Johns-Manville i- M '-y/'t' ' , L /c ' \r-%I 1*T m Code 18$ Ser 116-78 6 June 1978 mmorandum' ' From: To'; . Code Code 510850 , '' ' . ' ' ' -, -, ' . ' " - Subj: Tremote Talc Containing Asbestos Fibers . Enel; 0 ) Naval Spdltr from Commander, Mare Island to Commander, Naval. Sea Systems Command of 20 ,Sh Jun `f1X97?85d " 1 ' Enclosure (1) identif ied.'subject.in use at. Mare Island Naval ^Shipyard arid procedures taken to reclaim talc'contain.!ng asbestos fibers ,for_ i posai while substituting non-asbestos talc. 2 Aeouest search of procurement documents and/or inventory 1is ts to l i c a t H u b j e ^ i p supply, points -(Shop^torcs) a t P M ladelpK .a Naval > Shipyard.;' ; ;. . ' " ;' : 3* N o tify Code 18$ o f stocking locations NLT 20 Ju ly 1978. , i d y ^ C(y J o s eph w . Kennedy opy to: i{W. ;ode` 300 : CRMC-HT-TALC-000262 UBOHAOR.Y TEST'WOJEST lf-t?M'jMS 473Q/W $E. i>~7ty 3 v..-V-;fc* 1Q:. Krt cntwtvrr t*s,cooe Q ulTAUUVC-UlAS.<:Ot!W* f--lJ MATf'iwriST^AS|,|coe'_,a_ tAC'OCKfMISTVAS,COO M-A otscsirnoNCf-auma-[ j l . C.y/; P;J! .i^... X " H e / t/ fA W C -4 A h M fim j.yfcliiSiyBdthie * Csp- ?o M`'2<**l./*0^riViK.OsA. ^SoSbSIOfwJur.jp-. i UCiCiJ!OM/rLAN tww ' /y' ^ * Jc i f V^/ i cSop2is&ta-J. LL,--, W/algTZ. ! . ' tO; NO. ... (//CtlWNlNO. _ iTYPi/AOC? '8A0S lCLfcS1 / y 72 1 s--^../ A A '/J ^ VqhO^NC 0TM5 l ^ ;rMr.-ftC*^V*Ma nHivx T |cT 3 W ^ L J fSS. riM~O~Nss I ISUMUS3 A fo c K vue , < $ / 0 L - T 9 7 e? f J . " . .' CRMC-HT-TALC-00027S 05D2/610XC/JJT 9531 - , S? 35 ' Fr5 Cmsmfer, Kmral Sas yst m s Qam m d . f@s ' Sopsgate Mare Bland Naval Shipyard . S AY B?l . . 'to to t Asbestos Content o Magnesim Sillcat Bas Materiel Cead in Mann factor of MH^P-2M&1 Eposy Coatings. . . af (a) .OVSEC Project Order H6519779PO9O620 ______ ____ . I.' I t is r e q w a tm that Mare Island 8rai Shipyard (HAPSKIPYS Mars) wlsate ssgnesiB Billcats rami . . - > . . '. &, T. Vanderbilt G Pfizer Co Minerals 6 Pigments CUftal 300) (C? 20-30) . Cyprus Miatioa ' (139) . Bssert Minerals Tale Co. (Iy~Fia 80) " .. ; ' * . -w to determine asbsatps fiber content. . . " . - 2 Aitbousb treoikta is the iSffljor mineral fiber ia asbestos, other ais^ < t t r ^ W r U t . , * 8 1 , .citoUt, anttoplyUM, * 1 - .these fibers-, ar t b identified -also sad ^ present, reported long vith crenelles. , . . , ' . ' ,, ` . 3 'The alliens pigneata f paragraph ossa ( D shall also fee ^ OTslSeJphyslcaliy and chemically. In particular, oil absorption should fea determined8and compared to.tfe material used to M k a reforanBted MIL-P-2A441 saaterialffl, ii. Pfia Cp 20-30 magnesim# silicate. . 'ib^Sha ffort is Within; th scop of footing"of'rweo (a) ; .f.sm&imi Blind copy to: ) mVSZA 05D23/6101E 534/6159C 921TH3 Prepared by: John. J, Tock/05021/6101C/20214 Typed by: L. Sendjo Hager/24 May 1979 . B109398 CRMC-HT-TALC-000156 2/\rn\rt-n . Ko' M.O. Cww june 21,r . . ,, v'-a.rtren1 has t!y- . '. +*.a* the Kavy ` ,,C,aWtwit o . lVia-rr.>cudraoe iTl .t h - t -- c c s : ' ^ esr<2 . '... '.. in r.orhcrs o* ~ ... bot-een . " * in ,,.,* incont.i ="e- ^...t o the . ..... ,s f - - n t an$ -he ^?va.; .cs havo c virta^V -- ; cente" * . ., *v v;'IP1- .-I*** vr ^ n e a tic r. $%& ' . VTAY'T^OCK' . after :?. -/.Asbestos to the r-a. apparently .' ''' '*c,` `,. , c?se cf r.---' , . 7i.li5-is * ^5-pr,-rtc - " tent na pectoris *-:r..---rvv-: :' t^ho j . r i u-i cn * r b c- * . . . a tr.ixturo of & r * & $ ,* & dif " . ... (.f .,,=,,o is *... >'.. rathe-,t-'- >>,i,,n. t.-k..rrbo-- *--J--. r ,v ;.il of., V****./ ;.laos 'ther.*4-**. . ,,uVthe tv, . ; ; -;V' ;'. '. ' .'"**-*-**^" . - ' / . ... . ` CRMC-HT-TALC-000213 m**^v V I''***'?? * j oelk: DEPARTMENT OF THE NAVY MARK ISLAND NAVAL SHIPYARD YAU.JQ. CAUPQSNIA &43S2, S JPUf RSI'S TO: I34.G5~Sr 376 9651 U 7 1330 From: Commander, Mare Island Naval Shipyard To: " Commander, Naval Sea Systems Command (05D21), Subj: Asbestos content of taie suitable for use in MIL-P-24441 paint . ' ' , &ef: (a) NAVSEA Itr 05D2/6101C/JJT 9631 Ser 55 of 30 Hay 1979. Enel: (!) Project Proposal, Evaluating the Airborne -Asbestos Released by ' ' . Grinding, Sanding, and Blasting Asbestos Containing. Paints . 1. Reference (a) requested Hare Island Naval Shipyard to examine four tal.E for asbestos content and for comparability .to the Pfizer Microtale CP 20-30 talc usad to cake reformulated MIL-P-24441 paints. 2. ' The asbestos content of the talcs was determined by microscopic analy sis using dispersion-staining. ;The o i l a b sorp tion s are based on data reported by the National Faint and Coatings Association and by the ualc .suppliers. The oil absorptions were determined according to ASTM D-281 which has a reproducibility of + 25%. The results are as follows: .. SourceCyprus Histron 139 . Oil Absorntion . .. 33 Asbestos Content Slight ..amount of fibrous t.re.molite in one V> tvo samples, ' . Desert Minerals Talc. Co., Hi-Fine 80 : . Pfizer Hicrotalc CP 20-3D ' 36 . 29 ' " Large amounts of fibrous tremolite present. Slight amount of fibrous . tresaolite in one of two samples tested. , K. X.. Vanderbilt,-Ny.tal 300 29 , Large amounts of fibrous tremolite and a small amount of anthophyllite 3. The airborne dust- hazards of asbestos in paint are unknown. Asbestos fibers that are tightly bound into a .paint should not be a problem. However, when paints are removed by dust, generating methods, such as sanding or abrasive blasting, asbestos fibers could be released. Dried paints are brittle and the chattering action of abrasive removal could break the paint vehicle away from the asbestos and release the fibers. . fK- Z' U_ c~ / / CRMC-HT -TALC-000203 . '' . . 13'4. OS-Set 376 . . . . _ ' : -9631 . ' . s,,tJi teV . . . e M tat of Mlc.iuit" f 1 W ^ ' sold to the Ma^ * _S;"e,K*1;vfcSt0S; Hence! It is safe to assumethat- all may contain from 20 to u ^ a<5bestos containing paints. The poteo- * " * * M T " i r w i n c asbesto'.- policies burins grinding, sanding tialfor generating . . i vith asbestos containing paints will or abrasive, blasting of s -P in\ h c dried paint being removed, depend on the a.ount of *'b'J J |d an'aiytIcai method for measuring the Unfortunately, 'hef / `.""b L n t ,,,,j the act3l amount of airoome asbestos ;:.*s 15 , *; The potential problem of .surface preparationcan 1b e ( b ) requiring-the e asbestos content talc i W * However, this approach will not Navy formula paints vnene.er pra tica*. 0 * under TI-E-490 . work for proprietary fortsulas au.h a, thos p ,,tbods for measuring U i l i c o n e - a l M topside p.i - J ^ tbere ,, ,, accepted U n i t the asbestos content of paint, do n a therc is no way to ^ L S i sr i : r : : f"ce';i.c^:i".SW . t o S Unit.tlono .for proprietary paints. . - ' . . it is recommended that: 5. Based on these observ,--io..s., it i, t av The airborne a , s b e , st o r Hu'-r-inf' the ^Such `ansurface preparation of invert:! gitiou will high asbestos content pciavs ertos^dusting hararcJ posed by using if" coutslin-ese amprojesct to accomplish such a ,tudy. i ;y ^ .* * " " * Approve paints. 1 * * *3 * * ~ 1 . * * * * * * * ' . ... - ' 6. hare- Island Havs.l -'S h i 1 to accomplish the recommended tash.^ ^ ^ tiBe. ^SoTiti^l- are potential airborne available for assignment uo -th V containing paints should be. asbestos problem associated ^ *to supporC such a project to the ' investigated. Mate Is lan ' v tha lead on such a task un,il fullest extent possible bu c.nn^ t he ^ 12 mouths for FY 81. It Is estimated the project ca ' $75s000. ' ` . " M."L. PITTJ5Ali By direction n-j.r , ^ T CRMC-HT-T ALC-000204