Document 71NOVR2p6n16Mmqnn9g9oaLgj

J-M Manufacturing Co., Inc Internal Correspondence To From Copies Subject C. G. Stelchek, Denison Date: August 1, 1986 E. E. Wang T. E. Lohman, J.T. Armstrong, Denison INDUSTRIAL HYGIENE SURVEY A comprehensive industrial hygiene survey for your plant will be conducted next month. The various airborne contaminants to be sampled/analyzed this time will be the same as those of last year (i.e., asbestos, respirable silica, VCM, organic vapors, CO, nuisance dust, and noise) The total sampling time for each airborne contaminant is around four hours. The total number of samples to be taken and the details are given below: Airborne Contaminant Total Number of Samples to-be-Taken Asbestos Respirable Silica VCM Organic Vapors CO Nuisance Dust Noise 41 16 10 23 3 1 47 Due to the change in plant operating conditions, however, you may have some new established stations that need to be sampled. If this is the case, exchange those old sampling stations having good track records for the new established stations, so that the total sampling number can be maintained at the same. To avoid unnecessary resampling caused by poor ventilation and/or improper work practice, check carefully your ventilation systems/work practices before the scheduled sampling date. Make certain that all ventilation systems are in good operating condition and established work practices are followed. This is particularly important when the new PEL for asbestos exposure has been lowered to 0.2f/cc. AUS. O 4 1986 D 001823