Document YDq3VEakb8q9Dvep9kzBm27w0

FILE NAME: Asbestos Cement Pipe and Sheet (ACPS) DATE: 1977 Mar 16 DOC#: ACPS022 DOCUMENT DESCRIPTION: Unpublished Report - Dust Exposures During the Cutting and Machining of Asbestos/Cement Pipe ASBESTOS EXPOSURES DURING THE CUTTING AND MACHINING OF ASBESTOS CEMENT PIPE Prepared for The A/C Pipe Producers Association 1600 Wilson Boulevard , Suite 1308 Ar lington, Virginia 22209 Prepared by Wesley M, Noble, B.S. Barbara L. iiawahara, M.P.H. W. Clark Cooper, M.l), Equitable Environmental Health, Inc, 2180 Mil via Streep Berkeley, C a lif o r n ia 94704 March 16, 1977 W1TB004052 ( ( i--i En a m r m m f~ j r~i mm r r j U- n p - * Table 3 4" I Data Obt ained in P r e l i m i n a r y Survey o f C u t t in g and Machining Oper ation s on A/C Sev/er Pipe ------------------------------------ -- ---------- ----- -------- Operation Sampled Abrasive disc Sample No, 3 Dur a t i o n (Hin.) a Vol. of Air Samp!ed (Liters) 14.9 Operator Peak Fibers/ML Air 14.7 Integrated Exposure Fibers/ML Ai r Total Dust iriq/m3 Pilot pipe cutter* 5 10 18.6 0.086 Manual l a t h e 6 15 27.9 0.12 Power l a t h e 7 17 31 .6 .05 Operator integrated 4 67 113 4 .3 Area in te g rate d 2 58 109 2.9 . Total dust 101 58 105 ______________ ____ i 16.8 A s p e c i a l tool n o t in cl u d e d in main survey p r o t o c o l . Mote: Background sample taken fo r 49 minutes b e f o r e pipe c u t t i n g began c o nt a in ed 0.017 f i b e r s / '. a i r . MTB004069 rIi n H~1 Dp n 7 Vol. of Ai r Sampled {Li t e r s ) 24.2 22 .3 37.2 37.2 31 .6 27.9 33.5 26.0 33.5 13.9 9.9 13,9 23.9 27.9 19.9 7.4 3 Fi bers p e r ML of Air 0.72 0.64 0.17 av. 3.51 0.34 0.09 0.57 av. 0.33 1 .47 1 .82 1.66 a v . 1.65 19.8 23.9 17. av. 20.3 3.71 1.70 0.56 av. '.99 0.65  - I t *1 1 n wm iable 3 H e l p e r 's Peak Exposures To Asbestos ( ( ! j r r ~ i lH r / n ^ h -- f Ti re i r--i m Table 4 -i Asbestos Levels in O p e r a t o r , Helper and Area I n t e g r a t e d Samples and in Background Samples Operations O p e r a to r I n t e g r a t e d Samp i e i' voir of Fibers f Ai r per Il Dura- Sam- ML (Sampi e t \ on pled of \ No. {Min.) li te rs i Air Help e r I n t e g r a t e d Sample Voi . of Fi bers i Air per Oura- Sam- Mb Sample t i on pled of ! No. _ (MiJUl. i b i t e r s i Air Area In teg rated Sample vor i of Fi bers i Air per Cura- Sam- ML Samp!e t i o n pled of fio. {Mi n .1 f Li t e r s 1 Ai r .-eb. 8, a.m, Sevier 4 pipe: power lathe, hole cutter, manual l a t h e , chisel and rasp. 184 366 0.09 3 181 246 0.10 6 j 184 342 0.04 Feb, 8, p.fn. Sevier 31 p i p e : c h i s e l and r a s p , abrasive di: c Pressure pipe: abrasive disc c h i s e l and rasp. 112 221 3.94 29 113 154 7.07 ! 32 i| 115 214 4.90 Feb. 9, a.m. 1 P r e s s u r e p i p e : ] 54 182 power l a th e , <i hole cutter, manual l a t h e . ! -- --- -- --------- - 248 0.76 56 : 185 368 : 0.17 58 194 j ______________________ 3B6 0.44 1t Background> Feb, 8, a.m. i 97 Background, S3 83 Feb. 8 , p.m. g H Background, 67 68 Feb, 9, a.m. o Background, 78 130 Feb - 9, p.m. 175 0.01 , 150 0.02 ' i 135 0.01 1 ; 1; 259 <0.01 I ( Tool used for Cutting or Machining Manual l a t h e Tower l a t h e Power hole c u t t e r Abrasive disc Chisel and rasp ( irac m Table 5 Total Oust From C u t t i n g and Machining O p e r a ti o n s r* n btb 1 Sample No. 104 102 103 107 A/C Sewer P i p e 2 Duration (Min.) 3 Vo 1. o f Air Sampled {Li t e r s ) 37 67.0 S3 95.9 42 76.0 15 34.4 4 DT outsat.lj (mg/tnJ } 51.5* 5.74 1 .84 37.5 5 Sample No. 113 no in 108 A/C P r e s s u r e Pipe G Duration (Min.) 7 Voi. of Air Sampled (Liters) 51 95.9 57 107 50 94.0 13 23.5 106 39 70.6 <0.1 109 42 76.0 r K 8 Total Dust., (mq/nr ) 8.13 2.59 0.21 34.0 2.89 This s i n g l e v a lu e was much g r e a t e r than would have been e x p e ct e d froni the a p p a r e n t d u s t i n e s s o f the o p e r a t i o n we have no e x p l a n a t i o n . MTB004073 L L. MTB04074 ( Type of A/C Pipe Sewer pipe Pressure pipe -s w m m m r a r ^ i Ta u*- ^ E^i r r-- 3 r a r r ^ Summary of Data Ob t ai ne d i n Survey o f A/C Pi pe C u t t i n g and ^'achni ng Op er at i! Tool In Operation Power l a t h e O p e r a t o r 1s Exposure F i b e r s / c c , Ai_r_ nte- Peak grated av ,08 Helper's Exposure Fibers/cc Air IntePeak q^ated av .09 J. r ...... ... " Area integrated Fibers/ cc Ai r . Total Dust mg/in 5.74 Hole c u t t e r av.44 0.09 a v. 23 0. 10 0. 04 1.04 Manual l a t h e av.15 a V. 13 51 .5 Wheeler c u t t e r Chisel and rasp Abrasive disc <0.06 a v . 30 av35.5 <0,05 av .25 r ) av64,0 Abrasive disc av2Q.3 3.94 av59,7 7.07 Chisel and rasp a v i .99 av.90 ! t Power l a t h e av. 33 j av.55 f Hole c u t t e r Wheeler c u t t e r Manual l a t h e a v i .65 0.85 av.51 0. 7 5 a v . 38 0J7 o.'ad i1 av.22 .V 4.90 0.44 29.0 <0.1 37.5 34.0 2.89 2.99 0.21 < 0.1 8.13 Background* F i ber 5/ cc Air 0.1 0.02 0.1 <0.1 iber concentrati oris in these are only approximate and indicate only that trie background was extreme ly low.