Document ezNvb9k9vpjyDpMXr4mnNx4M

FILE NAME: Asbestos Cement Pipe and Sheet (ACPS) DATE: D DOC#: ACPS0 KhMENT DESCRIPTION:Unpublished Report - Dust Exposures During the Cutting and Machining of Asbestos/Cement Pipe /... /_, L., '-4. ., L,.. ' ; .I, j .J '---'' ,~ I r r.._ f} [ [ I f .. .._ .._..,, L L ~ C C s f I ,..__,, f l ASBESTOS EXPOSURES DUR ING THE CUTTING AND MACHINU:G OF ASBESTOS crnrn f PIP Prepi:!red for The A/C Pipe Producers Associatio~ 1600 Wilson Bcu1evard SuHe 1308 A.rlington, Virgfrlia ?2209 Prepared by Wesley M. Noble, 8.S. Barbara L. Kawahara, M.P.H. W. Clark Cooper, M.D. fquital.i 7~ Environment.al Hea 1th, Irie. 2180 Milvia Street Berkeley> Ca1ifornia 94704 March 16, 1977 MTB004052 ( ( ,-J' ::I 1 Table Data Obtained in Prelimtnar~ Survey of Cutting and Machining Operatlnns on A/C Sewer Pipe -; 7 Vol. of Operator Integrated I Air Peak Exrost1re To tel 1 Operation Sample Duration I Sampled Fibers/ML - Fibers/ML D1Jst I Samp1ed No. (Min') ( LHers) Air liir mo/m 3 I Abrasive disc 3 8 l 14.9 14. 7 Pilot pipe cutter* I 5 rn j i 18.6 0.086 Manual lathe 6 15 27.9 0 .12 Power 1athe 7 17 31.6 .05 Operator lntegratcd 4 57 113 4.3 Area integrated 2 58 109 2.9 t Total dust 101 58 l 05 - I 16.8 I *A special tool not included in main survey protoccl. :!1: Note: --i OJ 0 0 .;:,.. 0 a> U) DackrJround sample taken for 49 mi:11Jtes before pipe cutting begar co!1tai1ed 0.017 fibers/:n1 air. ( ::! n I' ssure Pf pe 7 Vo 1 . of Air Sarnp 1ed Liters B fibers per ML of Air 24.2 22.3 37.2 0. 72 0.64 0.17 av. G.51 37.2 31 . 6 27.9 0. 34 0.09 0.57 av. 0.33 33.5 26.0 33.5 l.47 1 .82 1. 66 av. 1 .65 13. 9 9.9 13,9 19.8 23.9 17. 1 av. 20.3 23. 9 3 .71 27.9 1. 70 19. 9 G.S6 av. 1 99 _,j 7.4 O.bS C ( ( ~ ~ Tnblc J 'J 1-- - ~elp~rs Peak Exposures To Asbestos Q' .:. A./C Sewer Pipe 1\/C Pressure Pl pe z 3 4 5 Vol. of 6 7 8 \lol. of Tool used for .11.ir Fibers Air fibers Cutting or Sample IJuration Sampled per ML Sa1nple UtJratior, 'Samr1ed per if,L Machinin tfo. Mfo. l {Liters of Air th. (Min. 'Liters\ of Afr ---------'...."'-------,c----=----4-----'-'--'-'-',;...:..,.--+->.e:::..C...C..C..---'--f-----'--'---+t---'-;_,:_--l----''--'-'-.:-;:...L--+--.....LC:C..C.-::.:::~_._------'--- i~,rnua1 1athe 18 12 23.9 0.13 21 12 23.9 0.07 22 10 19.9 0.20 av. 0.13 16 29.0 0.55 12 21. 7 <0.07 20 36 .2 0.04 av. 0.22 Pm;er 1aU1e 2 14 27 .9 0.06 57 18 32.6 0.55 7 15 29.B 0 .16 60 78 32.6 0.39 10 16 31.8 <0.05 62 74 25.3 0.75 av. 0.09 clV. 0.56 Power hole cutter 12 14 16 l1 21. 9 0.29 6f+ 14 27.9 0.28 56 13 25.9 0. l 2 69 av. 0.23 18 32.6 0.29 14 25. 3 0.44 19 34.4 0.41 av. O.J8 f,brasive disc 35 37 39 4 8.0 58.2 5 9.9 52.6 5 9.9 81.2 av. 64.0 5 9.9 62.a s 9.9 62.0 7 13.9 55.2 av. 59.7 Chisel and rasp 26 :?8 33 ~OJ 0 0 ~H-1ee 1er p 1pe 0 cutter 25 ""--.J ~ 14 27.9 <0.06 48 1? 21. 9 D.13 10 19.9 0.56 av. 0.25 73 25.9 71 11 21.9 1. 37 14 27.9 0. 40 11 ll. Y 0.94 av. O.SO 5 9.0 (; .87 ( ( ( r '-:Z r1 n t_-7 r~ ,~ -~ r ~ ~ r -1 r-i r-n Tab1c 4 Asbestos Levels in Operator, Helper and Area lntegrated Samples and in Ba-c-kg-ro-un-d-S-am-p-le-s ---------- - I'--- 'l Operator Integrated Sample ~elper Integrated Sample Area Integrated Sample Ii !---r,---~.,-~~~,o~l-.-----~~------.---~~,-~~c-..-1._;._~,--- --ror:--,- if s:,~~ fit s!i1~ s:~1~ I ~~r ~~r jt Operations bampl e J No. l I I ::eb. 8, a.m Se\,er 11I 4 ?,pe: power lathe,i hole cutter, I manual lathe, chi5e1 and rasp. I I i ~eb. 8, p.m. Sewer I 31 pipe: chisel and ! Duration {Min.~ I I 184 t 1 112 1 of fibers pled i (Liters)/ ' 366 !l of Air! O 09 Samp1e No. 3 I l I 221 3.94 29 : of Fibers Duration fMin.) 181 pled (LHers)1 ' 246 of Air O 10 [ J Sarnple 111 No. 1 1 6 113 ' l54 7.07 32 of 1 fibers Cura- tion p1ed l (Min.) (Liters)i 1 ! 184 342 j 1 i I I of Air O 04 115 214 / 4.90 rasp, abrasive di ~ Pressure pipe: abrasive. disc chise1 and rasp. !='eb. 9, a .m. Pressure p"ipe: 54 power lathe, I I i 182 248 I O. 75 56 [ 185 368 I' O. 17 ! I ' I 58 191'1 I 386 0.44 hole cutter, rnanua l la the. ---'----'~----'I'---__ L____ 1 I ,_ : !_____ I L __ _ ---- ________j___ --- ~i- - Background, Feo. 8, a.m. 97 175 0.01 Gackground, 83 s FelJ _ 8l p.m. -l Bad.ground, OJ 67 0 68 Feb. 9, a.m. 0 ..:,. 0 Bi.lctgicun,.i, ....... N 78 1 3(1 Fc>!' . 9 , ;, ..,, . 150 I 0.02 135 0.01 <O.U1 ( ( ( \_ :.11 r - ' r7 Tab1e 5 Total Oust From Cutting and Machining Operations j' Too1 used for Cutting orMac hf n i riri Marn.Ja t lathe 'Power 1athe I 1 I 1 Sample No. 104 102 -" A/C Sewer Pipe 2 Duration (Min.) 3 Vo 1. of Air Sampled {Liters) 37 67.0 . 53 95.9 -" - 4 Totar t Oust, (mg/rn...,) ! t 51.5* 5.74 5 Samp1e No. 113 110 --~~- - A/C Pressure Pipe -- (, 7 Vo 1. of Air Duration Samplec (Min.) (Liters) 8 Tota1 Oust3 ( fTICl/111 } 51 95.9 I 8.13 I I l 57 107 2.99 Pm~er ho1e cutter 103 42 76.0 i.84 111 50 94.0 -0.21 I l_ I ' Abrasive disc 107 19 34.4 37.5 108 )3 23.5 34.0 I ! Chisel and rasp I 106 39 70.6 I <O. l 109 42 I 76.0 2.89 --I----~--...~ --- " ! l l *This slngle value was much greater than would have been expected from the apr1arenl dustiness of the operation we hav0 no P~planAtion . .. r, ~ -I a:J r 0 I 0 ~ --,l w ( ( ( -, I r-1 ~ Summary of Oat.a Obtained in Survey of 1'1/C Pipe Cutting and lbchinins Operuhons Type of A/C Pipe Sewer pipe Pressure pipe _,~ -t CD 0 0 .p,. 0 Tool In Operation Po~1er 1athe Hole cutter Operator 1 s He1per's Exposu,-e [x.posc.1re Fiber-s/-c- c l-\i-r-~-'!nte- _ f i b e r s / c c J /\i nte r - - - Peak crated I Peak g~ated l av.08 i I av.09 -1I i I av.44 0.09 av. 23 0.10 Manual 1athe av. 15 a11.13 ;.Jhee1er c:.1tter <0.06 Chisel and rasp av.30 Ai:>rasive disc Abrasive disc I av35.5 av20.3 f 3.94 I Chisel and rasp avl.99 i 1 Pm-Jer lathe Ho1e cutter Hreeler cutter Manual 1athe I av.33 av1 .65 0.85 av.51 t 0.75 i I ' I l'f <0.06 I av.25 t i av64.0 i l I i av59.7 7.07 t av.90 I I t l I i av .56 I av.38 Cl. 17 I I I 0.87 ! I i I av.22 II t ArE>a tegrci ted Total Dust Ba ck ground* Fibers/ 3 Fibers/ cc hir ---:------m'g-/m'------------c-c-'A-i-r ---- t 5. 7,1 0.1 0Jl4 1 .84 51 .5 29.0 <O. 1 37.5 4.90 3'1.0 y 2.M 0,02 f- 2.99 0. 1 l 0.44 0.21 <O. l 8.13 <O .1 _l 'ksh iber conc(:t1tratim1s in these N-5% are only approximate and indicate only that t.i1P background 11ta<.; extremely low.