Document wr6a9qM78a9oy3nqDm4D7m08d

DOW CHEMICAL U.S.A. LOCATION - CHLOR-ALKALI, 36Q1 BUTLDTNG ENVIRONMENTAL HEALTH REPORT LOUISIANA DIVISION PLAQUE MINE. LOUISIANA 7070* B04 087-4321 ASBESTOS SURVEY CHLOR-ALKALI II FILE NO. 107-98-? DATE February 24, 1975 AUTHOR Dannie Kennedy CHECKED__ Char-Hi* Balphan _________ DATE February 22, 197S SUMMARY -itored operator exposure to asbestos while making rounds and pulping cells. The results .e all well below the OSHA Standard of 5 fibers per cubic centimeter greater than 5 microns in length and Dow's goal of 2 fibers per cubic centimeter. The two samples recorded while making the rounds were.07 and .01 fibers per cc greater than 5 microns in length. The two samples collected while pulping cells registered .06 and .40 fibers per cubic centimeter. The operators must be informed of the monitoring, results and the hazards involved in handling asbestos. The need for wearing and maintaining proper respiratory equipment must be reemphasized. The importance of safe work procedures and continued good housekeeping should also be recognized. DISTRIBUTION J. W. Bristol G. W. Daigre E. D. Campbell E. P. Edwards P. C. Robert T G. Witty C. Howard B. 2304 B. .2501 B. 2601 B. 3701 B. 3601 B. 3601 E. 3601 H. R. Hoyle - 1707 Bldg. - Midland F. D. Axe - Pittsburg C. E. Caldwell - OCD R. R. Langner - 607 Bldg. - Midland C. L. Sercu - Cleveland R. L. Daniel - B. 101 - Freeport File (2) AN OPERATING UNIT OF THE DOW CHEMICAL COMPANY DC W.5 o0 CD -- ---: .---\ O' FILE NO. 107-28-2 2- - INTRODUCTION Made required 8ix month asbestos survey to update status of asbestos levels in the block. METHODOLOGY Caught four samples using the Bendix pump (Model C-115) and the millipone filter mounted in an open face filter holder. The sampler was attached to the operators lapel so that the area sampled would be in the breathing zone of the operator. Two samples were caught a3 the operators were making their routine rounds through the plant (These two samples were of thirty-five and eighty-five minutes duration.) The other two samples were collected while the operators were pulping cells. (To pulp a cell the operators make up an asbestos-water slurry and pour it into the cells to plug leaks.) These samples were of eighty and forty minutes duration. RESULTS The two samples monitoring the operators making their rounds measured .07 and .01 fibers per cubic centimeter greater than 5 microns in length. The two samples which monitored the operators pulping cells measured .06 and .40 fibers per cubic centimeter. co --1 -- CONCLUSIONS These levels of asbestos remain well within the 0SHA time weighted average of 5 fibers per cubic centimeter greater than 5 microns in length and Dow's goal of 2 fibers per cubic centimeter. Sampling will continue on a six month basis. " RECOMMENDATIONS Since the operators must handle dry asbestos to form the pulping slurry there are several precautions that must be followed. The operators are required to wear the MSA Comfo Respirator (type BM 2301) with the asbestos dust cover (type BM 2301), rubber gloves and paper suits. The asbestos should always be handled wet (the sack should be wet down even before cutting open). Practice good handling techniques to avoid spilling asbestos. All efforts should be made to prevent asbestos from becoming airborne when handling. Wet asbestos on tools and clothing should not be allowed to dry and eventually become airborne. After the job is completed asbestos waste and empty asbestos sacks should be sealed and labeled in impermeable bags and containers. The asbestos should never be blown or shook off the contaminated suits. It should be vacuumed and placed in the proper designated containers. Always wash hands after handling asbestos and never carry cigarettes or candy in pockets while working with asbestos. The last point is to always be on the alert for problem areas, report them to supervision and have the area monitored if it is suspect. f)fC(L l^^ilci /Uasiz, /0 -/ - /?73 s+J. 77 7 - CjuuL' <o "V*0 <: <: 77 OO' ^t&! c. < 0' >t- /K y* 2fi/ ^4/i, A<-.A* "* /'*,, 6M (XAS-u P OlLi^i - 6~f n CL^\JL4~ Oljut4JL> dbAJLA. [P* / '<1<_C_0'U CtSK.^3. - 3 cZ / / t . 06 f -- . <5 <5 , do f- * <5 <3 >f" A/o/ A/d A/d AjJ O o3Al -_ J CH10R-ALKALI II Caught two samples while operators were pulping cells with the Bendix puap set at 2 liters per minute. The samples were collected from the breathing zone, with the sampler pinned on the operators lapel. To pulp a cell the operators make up an asbestos-water slurry and pour it into the cell to plug leaks. The operators mix dry asbestos with water in a box to form the slurry. The asbestos should always be handled wet from the time the bag is opened until the slurry is completed. The operators wore required MSA Comfo Respirators with the asbestos dust covers (Type BM 2301) The two samples varied from .046 to .79 fibers per cc greater than 5 microns in length. This is well below the O.S.H.A. standard of 5 fibers per cc and Dow's guideline of 2 fibers per cc. The notable difference between the two samples could be due to the different procedures employed by the operators. Operators must be informed of the sample results and must also be made very conscious of the hazards involved with handling asbestos. Safe operating procedures should be emphasized to keep exposure to a minimum. Wetting the asbestos thoroughly and wearing the proper breathing equipment when mixing the slurry also is most important. When using the respirator it is imperative that the asbestos dust cover be fitted on it. Another important precaution is the necessity for being extremely careful not to get slurry on clothing which will dry out and give off airborne asbestos particles. Partially used bags of asbestos should also be handled with caution and kept sealed in plastic to prevent airborne asbestos particles. ZO CJ'\ c. 'Jj DOW CHEMICAL U.S.A. GHLCR-ALKALI - 3o01 3LEG. ASBESTOS SURVEY CHLOR-ALKALI II - LOUISIANA DIVISION PLAQUEMINe, LOUISIANA 70704. 504 637-4321 HRATJTH REPORT FILE MO. 101-13-1 DATE 1-13-75 AUTHOR Dannie Kennedy CHECKED Charles E. Halpher. DATE o. -- Operator exposure to asbestos fibers while pulping cells have been monitored. The results were within the O-S.H.A- time weighted average limits for an eight-hour shift of 5 fibers per cc greater than 5 microns in length and also below Dow's goal of 2 fibers per cc. The two samples recorded were .046 and .79 fibers per cc. Operators must be kept informed of the test results and the hazards involved in handling asbestos. Proper handling procedure and the wearing of proper respiratory equipment must also be re-emphasized. The MSA Comfo Respirator (Type BM 2301) with the dust filter is required. CO DISTRIBUTION : J. W. Bristol G. W. Daigre E. D. Campbell E. ?. Edwards P. C. Robert L. G. Nitty File (2) 3. 2304 B. 2501 B. 2601 B. 3701 3. 3601 3. 3601 AN H. R. Hoyle - 1707 Bldg. - Midland F. D. Axe - Pittsburg C. E. Caldwell - 0CD R. R. Langner - 607 Bldg . - Midland C. L. Sercu - Cleveland -TH^D^W1 d&;riCea?pL oCrOtMPANY Sc>' iy -1 / rw ,o ,~i DOW CHEMICAL U.S.A. LOCATION: Chlor-Alkali II - 3601 Building LOUISIANA DIVISION PLAOUEMINE. LOUISIANA 70784 S04 687-4321 INDUSTRIAL HYGIENE REPORT PlbY.t C Orr i" 'Ti ASBESTOS SURVEY FILE NO. 112-15-9 DATE Sept. 15, 1975 /Oz-AUTHOR CHLOR-ALKALI II CHECKED. jfl.A: 7AM. DATE <? -- /f -- 7^___________ SUMMARY Conducted second asbestos survey for 1975 at Chlor-Alkali II. Monitored three operators for asbestos exposure while performing routine duties in the cell area and obtained a stationary sample in the asbestos storage area. Results were favorable and ranged from .01 to .03 fibers (greater than 5 microns in length) per cubic centimeter. Dow TLV is 2 fibers/cc. - (greater than 5 microns in length) Good housekeeping and wearing proper respiratory equipment are necessary considerations whenever asbestos is handled. DISTRIBUTION Ed Edwards Ronnie Cardinal Flash Howard Medical Dept. - 3701 3601 3601 2303 G. W. Daigre - 2501 R. Langner - 1803 Bldg. - Midland R. Daniels - B. 101 - Freeport AN OPERATING UNIT OF THE OOW CHEMICAL COMPANY GO CO cn CO R DOW CHEMICAL U.S.A. 10 TAT TOM - Cttt.OR-AT.KAT.T. 3601 BUILDING ENVIRONMENTAL health report LOUISIANA DIVISION PLAQUEMINE. LOUISIANA 70784 504 887-4321 A53EST0S SURVEY CHLOR-ALKALI II FILE NO. 107-28-2 DATE February 24, 1975 AUTHOR Dannie Kennedy CHECKED rharl-fo fTalphon DATE SUMMARY Monitored operator exposure to asbestos while making rounds and pulping cells. The results e all well below the OSHA Standard of 5 fibers per cubic centimeter greater than 5 microns j.,, length and Dow's goal of 2 fibers per cubic centimeter. The two samples recorded while making the rounds were.07 and .01 fibers per cc greater than 5 microns in length. The two samples collected while pulping cells registered .06 and .40 fibers per cubic centimeter. The operators must be informed of the monitoring, results and the hazards involved in handling asbestos. The need for wearing and maintaining proper respiratory equipment must be reemphasized. The importance of safe work procedures and continued good housekeeping should also be recognized. DISTRIBUTION JT W. Bristol G w. Daigre z. D. Campbell w P. Edwards p^ C. Robert L. G. Witty - Howard 3. 2304 3. .2501 B. 2601 B. 3701 B. 3601 B. 3601 B. 3601 H. R. Hoyle - 1707 Bldg. - Midland F. D. Axe - Pittsburg C. E. Caldwell - OCD R. R. Langner - 607 Bldg. - Midland C. L. Sercu - Cleveland R. L. Daniel - 3. 101 - Freeport rile (2) AN OPERATING UNIT OP THE DOW CHEMICAL COMPANY FRAG/# Ul Ui S 2 *OlE CO CTi G~> fo FILE NO. 107-28-2 2- - INTRODUCTION Made required six month asbestos survey to update status of asbestos levels In the block. METHODOLOGY Caught four samples using the Bendix pump (Model C-115) and the millipone filter mounted in an open face filter holder. The sampler was attached to the operators lapel so that the area sampled would be in the breathing zone of the operator. Two samples were caught as the operators were making their routine rounds through the plant (These two samples were of thirty-five and eighty-five minutes duration.) The other two samples were collected while the operators were pulping cells. (To pulp a cell the operators make up an asbestos-water slurry and pour it into the cells to plug leaks.) These samples were of eighty and forty minutes duration. RESULTS The two samples monitoring the operators making their rounds measured .07 and .01 fibers per cubic centimeter greater than 5 microns in length. The two samples which monitored the operators pulping cells measured .06 and .40 fibers per cubic centimeter. CONCLUSIONS These levels of asbestos remain well within the 0SHA time weighted average of 5 fibers per cubic centimeter greater than 5 microns in length and Dow's goal of 2 fibers per cubic centimeter. Sampling will continue on a six month basis. RECOMMENDATIONS Since the operators must handle dry asbestos to form the pulping slurry there are several precautions that must be followed. The operators are required to wear the MSA Comfo Respirator (type BM 2301) with the asbestos dust cover (type BM 2301), rubber gloves and paper suits. The asbestos should always be handled wet (the sack should be wet down even before cutting open). Practice good handling techniques to avoid spilling asbestos. All efforts should be made to prevent asbestos from becoming airborne when handling. Wet asbestos on tools and clothing should not be allowed to dry and eventually become airborne. After the job is completed asbestos waste and empty asbestos sacks should be sealed and labeled in impermeable bags and containers. The asbestos should never be blown or shook off the contaminated suits. It should be vacuumed and placed in the proper designated containers. Always wash hands after handling asbestos and never carry cigarettes or candy in pockets while working with asbestos. The last point is to always be on the alert for problem areas, report them to supervision and have the area monitored if it is suspect. DOW CHEMICAL U.S.A. LOCATION: LOUISIANA DIVISION PLAQUE MINE. LOUISIANA 70764 504 667-4321 Chlor-Alkali II - 3601 Building________________________________________________ INDUSTRIAL HYGIENE REPORT Conducted second asbestos survey for 1975 at Chlor-Alkali II. Monitored three operators for asbestos exposure while performing routine duties in the cell area and obtained a -.ationary sample in the asbestos storage area. Results were favorable and ranged from .01 to .03 fibers (greater than 5 microns in length) per cubic centimeter. Dow TLV is 2 fibers/cc. - (greater than 5 microns in length) Good housekeeping and wearing proper respiratory equipment are necessary considerations whenever asbestos is handled. DISTRIBUTION Ed Edwards Ronnie Cardinal Flash Howard Medical Dept. 3701 3601 3601 2303 G. W. Daigre - 2501 R. Langner - 1803 Bldg. - Midland R. Daniels - 3. 101 - Freeport AN OPERATING UNIT OF THE DOW CHEMICAL COMPANY CO cn cn JC 2 3 S UBJ E SpU p\^ the. sZf- ____________________________ _______ SHEET / OF AU TH . NO FILC NO. 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