Document JJJkmejYQkG472E78wNkaM8k2

A and &ie*ncca& CALVERT CITY PLANT INTEROFFICE MEMORANDUM t0. R. C. Lietzau From: B. D. Helms Personnel Monitoring Vinyl Chloride Data: 18 February 1982 G. N. Boyd has completed the field comparison of Reiszner badges versus the pump method for determining employee exposure to VC1. The results (attached) show excellent agreement. I recommend we change to the badge method of monitoring for VC1. The accuracy will be rechecked in three months with standard gas. Also area field comparisons with the pump method should be made every three months. Your approval Is requested. B. D. Helms AP00040027