Document GvVg03XKymKGGVBjvJq7e27Y
FILE NAME: Asbestos Sacks and Bags (ASB) DATE: DOC#:ASB0 DOCUMENT DESCRIPTION:E/K^,ZZZ
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Report Prepared By: R:ly M. 'Ft em i,n.9
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Envlrbnr.'.ental Invest'icstions Branch
Division of Field Studies and" Cl inical Investj~ations
National Insti~utc for Occup~tional Safety and Health
o 1014 BrOClC\.:ay
Clncinnati. Ohio 45202
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AS13ES10S nUP-LAP nAGS
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Concern over ihc use of burlap bags for wr~pping The 'bases oT rcze bushes has arison b~c.:usc the bans \':ere -initi~'lly used as c:onT:iners for Dtrr.>sita '=::'(!!:iTC!i. To c:-:'err=:ine ~ po!>siblc exp:::lsuro of as:=s'tos
fibors;o lI:orkOl'"5 \'.h:::l t.:~e ,.hoso bur la;> b,ass, 'a -i'cs", simulZlti,M; 'the-" handl in; OT the =~;S, K:!S c:c:;~:.Jc"tad in an onc I 05;:)0 recTo. For -a four
minute' s;::r.;>le, 'the avel'"ti;e ast~stos concentration ot fibe!"'s greeter
than -five microns in Ic'ngth in the \'/orker ' s breZlthinSl zone ~:ss
490 f i bers per r.-: i I1 i r iter. S!::::p I os taken wiTh i r. 1'\-:0 fC'et of 1'he worker at heights of 6 in=hes" .33 inches, end 60 inches yielded concentrations 'ot 500, -350, and 470 iibers per mi 11 i 1iter, respectively.
Conditions of the Test
One burlap b,eg ..:as used in -the ;-es;-. It ~/es taken from-1"he mjedle of a
stack of b,:!gs at the Eikner tlursory jn Tyler, Taxes, sealed in a plastic bag, () nd,'f lo\'m to Ci nc i nnt1:ti, Ch ie. The bur- I ap bag ~las kept in the
p'!astic b~; unti I the act!.;; I test. To eehieve possibly The wer-si'
exposure,' the test \-:as conc:Jcred in a sr..:!ll rOO!:1 (4' x 6' x 8') wh i ch
Iy has n:> venti I c:ticn, the burl Elp b-a.9 ":"5 turned ins i de out before shei< i:19,
and -the beg \-:35 .shaken vic~rol.!s -for 60 seconcs. Th: four rninu-:-e ' samp[ ins:! 'tir.:a ..:~s determined from renersal of the procedure for ~lrcPt>in.9
21 bush, ho',':ever, the \':orkercould probably wrap one bush in half th~t'
tim~ ii he \,:orkod quickl~,'-
Procedure
The 1-est ro:::lm \'!as Vacuu!:led and the equipr.:-ent t:as set up as in -Fisures
and 2. T\,/O four r.:inu'te s~mj:lles "lere taken at locations I end 2 befcre
the test. These fi Iters \';~re change-d, and the bur-lap bag \-Ias placed in
front of the -Chair si'i I1 in its p'!astic container. five'r.1inui"es late:--
'the \'/orker's persona I pumps were turned on Just as he enTered The rco:"" \-/earing a respi-rEltor, the workGr turned on PUr:lPS I, .2, and:3 and -ther. sat fn the chair. He took the burlap bg~ out of the pfastic beg and 'turned the burlap bag inside out,. Standing, he shook the b:!g 'for 60 seconds ~nd the~ sat down, spreading the burl~p bag on h!s lap. He then went -throuch the motions of placina a rose bush' on ,the b~9 and wrapplns:! 'the bag -around the base of the bush., After tying -the corners with c ~tirc, the worker plac~d the bush on the floor and stco::! u? 1'0 brush off his clothes. tie shut off pU::ipS I. 2, and 3_ and l~ft the room. Hi s persona I pUr:lpS ~;ere turned oH as soon as he ,':as Quts} de the room. Ouri ng th~ first three mi nutQS after the i'est~ the filters \'/ere taken off the pumps, t ....,o fi Iters \':ere installed on pumps I and 2, and the burlap bag vias soalod in tht; pfastic bag. T\'/o four minute samples were taken to rnO<lsure airbornG asbestos concentrations. The room \,/as
-thcn opened for cl ean i,ng and remova I of eQui pmenT.
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Asbestos - Bur I ap Bag
JDnunry 14. 1972 . ~"9C.2. .
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---Ceta - collected ~nd co.unt.ed on January 11, .1972
latal
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.Be fo re tes1":
floor 1eve I
chair level
'0.0
0.0
0 .0
0.0
:flve Minute Bre3k
OurinR test: iloor level
.560
,500
chair level
480
350
stand ipg I eve I
7.30
470
P~rsonal samples
640
570
.590
410
Three f.1i nute Break
After test: floor levet
.200
130
cha i r_ Jeve 1 .380
250
'Egu i pm~nt end s uoo lies
>lO~
0.0 0.0
370 230
150 410 260
80 150
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Test room
- a 4'-0" x 5'-10".x 7'7" enclosure vli1"h two
sea'l ed ~indows and a doub (e c!oor
III Burlap ~ag
- approximl3tely 3' x 2' and lined w'i1"h thin
plastic
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11 Tripod Rin9 stend
- pump' support
- pump'support
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JI.9ta I 10 ( d i,ng cha i r f.1SA portable pumps f.H 11 ipore membrane filters Comfo custom resp i rai'or
- V.odel G. part no. 456058 - AA, C.Bll 'pore size - Part no'. 66432
I Ultra fj Iter cartri.dges
- Type "H", part nO. 81051
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