Document G6aQy9g8997nKL8xxRgXV0GZr
May 19, 1975
/
cc: JM Gilmore / DJ Snyder
M Trowbridj^e RF Mitchell
J Bollock
To: Mr. S. H, Karaaghan Technical Superiatendent
Subject* VCM in Air at the Welex.
Samples were :ak.an at the same time and same ro that O.S.H.A. sampled on Ma;;' 16, 1975 c,
S Hour Carbon Tube
< 0o5 PF*a (Very Little Interference)
II. 10 Minute Carbon Tubes Han for One (1) Hour or More
1st Sample
< 0o5 pjm
2nd Sample
* 0,5 ppn
3rd Sample
< 0.5 ppm
The pump flow rate and carbon tubas lot number was the same
as O.S.H.A. Values are based on peak height but considerable
irterferonco
ir- VC p=mic a-raa: break-thru section showed
no VC peak- ___
Submitted for typing 5/19/75.
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