Document 2Ygrn5MjVko5awxRN1kMKqBb

ETHYL CORPORATION INTEH-OFF1CE To D. F. Couvillion/H. G. Olson Address BRP From Subject T. J. Harbourt Address BRP VC1 Monitoring Date February 15, 1983 In January, personnel samples for vinyl chloride monomer (VCM) were collected for jobs on the 1983 annual schedule. A total of 36 jobs were monitored, 20 in the PVC unit and 16 in the VC1 process of the hydrocarbon area. The attached tables show the results of all jobs monitored. The OSHA permissible exposure limit (PEL) for VCM is 1 ppm as a time weighted average. In the PVC area, two of the 20 jobs- monitored exceeded the PEL of 1 ppm. The reactor foreman had an exposure of 1.7 ppm. His exposure occurred while supervising the repair of a plugged vent line on a slurry stripper and a leaking valve on B-16 autoclave. He wore a negative pressure respira tor during these activities. The cleaner operator had an exposure of 7.3 ppm. His exposure occurred while cleaning inside four of the large GJ6 autoclaves. VCM readings were taken at three different levels inside each autoclave using the H-Nu analyzer before entry for cleaning was made. The readings in ppm VCM were as follows: Autoclave No.TopMiddleBottom 18 180 200 210 17 120 130 140 19 90 90 100 18 120 130 130 The levels inside the autoclaves must be below 1,000 ppm before they can be entered for cleaning. If the levels exceed 1,000 ppm, the autoclaves must be water purged or evacuated using the auto-vac until the VCM level is below 1,000 ppm. Air sup plied respirators are used at all times while inside autoclaves. In the VC1 (hydrocarbon) area, two of the 16 jobs monitored exceeded 1 ppm. The compressor house operator had an exposure of 1.6 ppm. His exposure most likely occurred while in the area of a pipefitter changing a safety relief valve. An air supplied respirator was used. The tower operator had an exposure of 1.9 ppm. He was involved in the changing of a scrubber on the C-5 feed. No obvious exposure and no alarms were noted during the . shift. No respiratory protection was used. FO A2'?.'1- The overall low exposures found during this monitoring period show the continued effectiveness of engineering and work practice controls of vinyl chloride exposures in the PVC and VC1 areas. TJII :bto Attachments T. J. Harbourt cc: F. M. Buckingham/J. R. Heap R. Herzog J. A. Jacoby D. E. Johnson M. M. Koenecke G. B. Meyers/W. C. Hulon G. Mills L. A. Mitchell R. A. Moser D. E. Park J. D. Spearman G. L. Ter Haar File: IH (PC) Baton Rouge Plant (Vinyl Chloride) VINYL CHLORIDE PERSONNEL MONITORING I DATE AREA NAME 1/14/83 PVC Hopkins 1/14/83 PVC Mehl 1/14/83 PVC 1/14/83 PVC Ballard Lee 1/14/83 PVC Borne BADGE if .JOB Finishing Area 8769 Supervisor 7729 Reactor Area Supervisor PPM EXPOSURE 0.06 0.08 7404 8994 412 Reactor Foreman Maintenance Supervisor Maintenance Foreman 1.7 N.D. 0.06 O" ------------------------------------------------------------------ <\ ccrwENrs ,, tv B-16 autoclave leaking. Plugged vent plirnoeeoonnrosvlu-ororpyl stripper. Wore reqular 1/14/83 PVC. 1/14/83 PVC Lemoine ...... 6241 Kralemann 7539 E&I General Foreman 0.14 .07 1/19/83 PVC JL/lfl/li PVC Guillory____________ 1164 Vicknair 1207 Charuer Cleaner 0.2 7.3 Cleaned 4 large autoclaves, wore supplied air respirator U19J83 PVC Newchurch 6232 P/F 0.2 1/18/83 PVC 1/18/81 PVC Lande McCoy 533 843 Utility 1st Floor Operator 0.3 0.4 1/19/83 PVC 1/19/83 PVC 1/21/83 PVC 1/21/83 PVC 1/21/83 1 PVC Hunt Guerin Humphrey Olinde Gaines 844 523 984 3600 1206 Dryer 0.1 Warehouse 0.1 Mechnaic 0.07 Hygiene Utility Finishing 0.1 0.07 1 1 | ----------------------- r 1 NOTE: All exposures represent full shift samp]es unless otherwise noted. DATE Al^EA 1/26/83 VC1 1/26/83 VC1 NAME McLean Stokes VINYL CHLORIDE PERSONNEL MONITORING BADGE # GOB 4176 Machinist 5457 Auxiliary PPM EXPOSURE 0.2 <0.1 3 COtM-NTS 1 j u i i ---------r !1 NOTE: All exposures represent full shift sarrples unless otherwise noted. i* i ---------------------------------------------------------------1t i -----------------------------ji i