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INTERNAL CORRESPONDENCE
i CHEMICALS AND PLASTICS
To;1 (Name); Division Location .'V--
Mr*0,S.0ee Mr. N. H. Ketcham
Mr. $* t. Murray y
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P. O. BOX 8361, SOUTH CHARLESTON, WEST
NowmUrS, 1572
Originating Dept. Subject
Your memcrandum#TAsbe^ Guideline Cbrincatlon^^Pct^er^Vll^?,
wearing respiratory protocHcjn.
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To d^, according to
of the' recentrevistoh
October 18, 1972/wa havo had noconditio* that requlrod wearing Typ "Cf rp|rotot*
with supplied air# Tfc demolition of insulation in the Technical Center t uwoHydene
4*such small scc^s that proper precautions can controithe amount ofcsbeshttlnthe a!r
to welt below the 1Q fibers per cubic centimeter limit*
*
The foilowing is reccwwmndedto protect personnel from inhallngcsbestas fibers
. IritheTechnicaLCenter^ . '
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exposure* to asbestos; keep records
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2. Jobs# location and planning for olfsampling of operations Involving
3. 0ffloiitiQo is usually of short duration; personnel are required TeTtake
necessary precautions to control dust and wees respirators fitted wftti^^
approved filters* Previous air sampling or lodgment will he mode to :-0M.
dotermine vrfrothor additional respiratory protection is required. All
asbestos wastes are to be put in plastic bags for burial* Truck loads of
asbestos Inflation-pipingmay be wet down and hauled to site for burial <
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4, Personnel are required fo wear respirators fitted with approved filters
per co (longer than five microns In length), or If previous oir sampling for similar operations Has shown results to be greater than two fibers per ca time-weighted average.
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UCC 008782
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fee cleaned %et* or wtth on approved vocuura eteoaer.
6 In^ilcitotsi. |^j|Fnt)^MKi 4^ov9f(k2|^ They ore retired to wear these dr
7. Thr ore situations when controls are not feasible* If# for any reason#
'*&% keeplng# personnel mast wear protective clothing end supplied aIr#Type *C#* respiratory protection. Air sampling must also b done to evaluate airborne
SHA#whlle at the same time avoid collecting numerous olr samples# whlch are tlasr
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