Document evx6b0Rp0gngV0DZO8DG9Oq8G

A Interoffice Communication To A1 Sather From Tom Grumbles Date October 26, 1983 hf&3 Subject IH SAMPLE QC; NIOSH PUBLICATION This note is to update the subject items. 1. I have talked to several labs about developing a QC program for us, specifically for vinyl chloride. The labs I've talked to all use a liquid injection procedure as specified by NIOSH methods and do not routinely do head space analysis for industrial hygiene samples. This difference in methods would create uncertainties in analyzing matched samples. I'm not sure which direction we should go in at this point. That may be determined by your evaluation of other methods. 1 p 2. The NIOSH publication on manual lifting is out of print. Hovyever, we're getting a "loaner" from a local library for review. I should have it in a week. Thomas G. Grumbles a jo VAB.0001033963