Document MoJx1GnVL8VXQvMNGodZR4eD9

f Mr. K. I. Blackwell Rone and Automotive Products P. 0. Box 698 Ottawa, nilnols 61350 May 6, 1976 Medical Department Mr. R. C. Andrevs/w. Clevenger Mr. R. Reward Mr. R, Poster Mr. P. McBabb Mr. R. D. Todd Or. J. J. Welsh/Dr. K. 8. lane Dear Mr. Blackwell: An Industrial hygiene survey was made at Ottawa on February 25-26, 1976. The lateness In this report Is due to an extended delay In getting analytical results from the laboratory, the results for vinyl chloride and dust are shown on the attached tables. With regards to vinyl chloride It is recoenended that the Banbury operator on line 5 be rechecked since the level found was essentially at the Unit. In the silo area leakage was noted et the covers, and doors were open so that exhaust ventilation patterns were not normal. The other locations checked were well below the limit for vinyl chloride. Busts in the vinyl production areas were quite noticeable and house keeping could be considerably improved. Uae limits for total dust are based on the cristobalite content of the filler materials such as 8ilver Frost. It is expected that additional sampling will be performed *0 ascertain better exposure evaluation to lead and tin dust in air since we were not able to use the data obtained on this survey. In other plant areas, there were seme noise problems noted and current UCC 067880 Hr. K. E. Biackmeil May t>, 1970 practices to reduce overall noise levels should be continued since It Is probable that 85 dBA will be the limit before the year is out. In extruder areas, if reduced ventilation rates are considered. It should be pointed out that ozone generated from treating could be a problem. Also, exhaust gases front a process area should not be exhausted to another work area. Hie possible use of catalytic converters on fork trucks to reduce carbon monoxide In building areas was also discussed. The probable restriction of use of various chrome containing compounds as colorants for various products was also discussed. If adequate control were possible, these materials continued to be used. Thanking yourJfor thecourtesles extended, we remain Very truly yours, Z. G. Brown Industrial Hygienist L. J. LaTmnee Industrial Hygienist LJl/*8 Knc. ucc 067881 Dust Concentrations UHIOH CARBHE CORPOBATION Bone and Automotive Products Ottawa, Illinois February 29-26, 1976 Location Total Dust - ng/M^ Banbury operator Lina 1 0.01^ " Line 1 1.00 " " Une 5 0.45 Composite Blender Operator 3rd Floor 0.46 Blender Operator 3rd Floor (Rowe) 1.50 Bladder Operator 3rd Floor (Rowe) 1.30 Fedd Operator VO Line Oround Floor 4.74 Fedd Operator VO Line Ground Floor 7.50 Demerits 2/25 Personnel Sampler 2/26 " f 2/25 " 2/26 " tt VI 2/25 " 2/25 " 2/25 " n A.M t P.M w 2/26 " ^ Operating problems were present during this sampling period and very little Material was processed. The Unit For total dusts In this area would be 1.7 ng/M^ based on cristobalite content. The Unit for tin is O.tO mg/M? and for lead 0.15 ng/M^. All of these samples were analysed for lead and tin, but doe to apparent laboratory problems, they are not being reported. ucc 067882 Vinyl Chloride in Air tlHIOH CARBIDE CORPORATIOH Bone and Automotive Products Ottawa, Illinois February 25-26. 1976 location Calendar operator Line 1 Calendar operator Line 5 Banbury operator Line 5 Stationery Sampler Tap of silo Stationery Stapler Airreyor Room Vinyl Chloride wa z.0.0005 O0.0005 0.9U 1.60 0.0005 Remarks 2/25 Personnel Saaple 2/25 Personnel Saaple 2/26 Personnel Saaple 2/25 Pusping resin to silo 2/26 Pmping resin to silo Limitffor vinyl chloride Is 1 part per Billion. UCO 067883