Document 3NR8vbj3Z17K2ewNNqqLLbQK6

Solvents / EDO 1 Industrial Hygiene Communication # 94.10 Issue Date: September 2,1994 Return Date: Author: Mike Brown Subject: 1994 Chemical Resistant Personal Protective Equipment Written Program Please review the attached training material as quickly as possible and pass on to the next person on the list. Remember, your signature and the date are required (in ink) to document that you have reviewed this material. Please return this entire package to the Industrial Hygiene Coordinator. C/D Shift Personnel Rachal, G.W. 432421 SOS Bourgeois, Jr., E.O. Daiele, J.L. Duck, W.C. Hearns, S.A. Jackson,J. Theriot, J.J. Thibodeaux J.G. OS Cooper, J.L. Jackson, A.L. Landry, M.D. Landry, R.W. Lee, Jr., E. McCray, B.E. McQuarter, J.L. Prestonback, S.K. /> Young, H.P. Master# Signature 431530 0 432627 (fo/hJ; 1" 433122 432873 43351i V s' 7 9T')1 1 7 431763 432959 rn / ___L6 A- / A/ Date 1 13-1`Y 77j3j3 JjAjJli 713-19(1 __________ Master# 434258 433106 ^ ,, r~ Signature TSnS^241688 434061 432722 lr r,y-,4 'TSf 241426 ^2 rrj> J1TJ2 ^--- 433944 433945 \ 432824 Industrial Hygiene Training Document Date / AuAjAA f / z i?r TJaJI? SjAj51 1J2J2Z D0 A OA04SF' CONFTDFNT1AI Solvents / EDC 1 Chemical Resistant Personal Protective Equipment Written Program I. Introduction The primary objective of an Industrial Hygiene Program is to control health hazards. The control of health hazards can be accomplished through education and training, engineering technology, administrative measures and/or though the use of personal protective equipment (PPE). Selection of proper PPE requires consideration of intended use, toxicology database, chemical compatibility and service life, (i.e., how often the glove, suit or boot should be discarded). The PPE is first approved by the Division PPE Committee and then by plant/department supervision and the I.H. or Safety Contact before it is used in the block. The Safety section of job procedures and/or reference on the Safe Work Permit indicate the required PPE for the job task. These requirements apply to Dow employees and any contractors working in the area. Decontamination procedures, in-use storage conditions and disposal frequency are documented in this written program. IT, List of Chemical Resistant Protective Equipment A. Gloves Manufacturer's Name & Description Model Number Material Of Construction Chemicals handled with gloves Pioneer StanSolv* Silver Shield* Vallen Leather Driver Cotton Vinyl Impregnated LabCraft AK-22 SS504 TGD-258-L Nitrile Rubber Norfoil Laminate Leather Cotton PVC All All (liner for EDC liquid) Petroleum Based Oils and Dirt Petroleum Based Oils and Din Petroleum Based Oils and Din All (lab gloves, incidental contact) B. Boots Manufacturer's Name & Description Servus 12" Tingley Overshoe Tingley Model Number 22148 1302 98243 Material Of Constmction Neoprene Neoprene Nitrile Blend Boots used to protect against these chemicals All All All The Silver Shield glove is used as a liner in the Stansolv glove when prolonged exposure (>15 minutes) to liquid EDC is expected. Page 1 DO A 04045^ CONFTDFNTTAI B. Boots Issued for personal use. As soon as heavy soiling (contamination) is evident during the course of the workday the boots may be discarded if they cannot be decontaminated. At the end of the workday, the boots are placed on the boot rack in the locker room where they are purged with plant air until the next time they are worn. Normal lifespan is 6 months to one year. C. General Service Weight Suits Issued for personal use. Rainsuits and Nomex are removed for laundering as soon as heavy soiling (contamination) is evident during the course of the workday. The Nomex suits (each employee is issued at least two pair) are stored in personal lockers. The Rainsuits or Nomex may be discarded if they cannot be decontaminated. Other one-time-use PPE is discarded at the end of the work day or sooner. These items are used on a per-day basis and in-use storage is normally not required. D. Heavy-Duty Suits Storage and re-use of these items is evaluated on an individual (per job) basis, Heavy-Duty suits may require frequent cleanings during the course of the job, and will be cleaned as per manufacturers instructions before storage. These suits are normally discarded dependent on contamination and/or wear. V. Disposal Frequency A. - Gloves As needed dependent on contamination, usually at least once a shift or at the end of the shift. B. Boots As needed dependent on contamination, usually at least once every 6 months to a year. C. General Service Weight Suits As needed dependent on contamination and wear, usually at least once every 6 months to a year. Some suits are intended for disposal immediately after use. D. Heavy-Duty Suits As needed dependent on contamination and wear (disposal is evaluated on an individual (per job) basis). VI. Attachments The performance data for the chemical resistant equipment listed is attached. Date : 9 / *2. / 94" Plant Superintendent Next Review : 3/95 Page 3 DO A 040457 CONFTDFNTTAl C. General Service Weight Suits [i.e., rainsuits, disposables (such Tyvek, Saranex)] Manufacturer's Name& Description Neese 2 Piece Rainsuit WorkRite Coveralls Kappler Disposable Coveralls Kappler Saranex 23P Coveralls Model Number Type 45 1681040 77417 Material Of Construction PVC/Nylon/PVC Nomex III' Tyvek Paper Saranex-Tyvek Suits used to protect against these chemicals All / Splash Protection None None - Clean Body Covering All / Splash Protection D. Heavy-Duty Suits [i.e., Acid Suits, Level A, Suits] Manufacturer's Name & Description LifeGuard Responder (Level A) LifeGuard Responder (Level B) StaSafe Gralite Accordion Suit Model Number M-104-DYM LJ-105 Material Of Construction Multi-Film Multi-Film PVC Suits used to protect against these chemicals All All HCL, AHCL III. Decontamination or Laundering Procedures A. Gloves Gloves are not decontaminated or laundered. B. Boots Boots are decontaminated by water washing or scrubbing with water and detergent. C. General Service Weight Suits PPE issued for splash protection must be decontaminated immediately after contamination occurs. Items issued for splash protection do not afford the necessary permeation resistance for prolonged contact with chemicals. Other equipment intended for re-use must be decontaminated before removal. Decontamination is accomplished by water washing or water and detergent washing. In some instances, a scrub brush will be needed to clean heavily soiled areas. Some of the equipment is used on a one time basis and is discarded after use. Nomex clothing must-be laundered at the end of every work day. Nomex clothing that is too contaminated for laundering will be discarded. D. Heavy-Duty Suits Decontamination is accomplished by water washing or water and detergent washing. In some instances, a scrub brush will be needed to clean heavily soiled areas. IV. Tn-Use Storage Practices A. Gloves Issued for personal use. As soon as heavy soiling (contamination) is evident during the course of the workday the gloves are discarded. Normally discarded at the end of the work day or sooner and not placed into storage. Page 2 Dn A 04045R CONFIDFNTTAl Personal Protective Equipment Program Permeation Resistance Data Chemical Protective Gloves Nitrile Gloves: The Edmont Solvex 37-175 Nitrile Glove (13" length, 15 mils thickness, with flock lining, cost 1/pair) is the primary chemical resistant glove used in the Louisiana Division. The Pioneer Stansol AK-22 Nitrile Glove (12" length, ~ 15 mil thickness, with knit lining, cost ~$4/pair) is also used in those plants where gloves are worn for extended periods. Under these situations the knit lining is more comfortable because it absorbs hand perspiration and that is the reason for the higher cost. The nitrile gloves generally range in thickness from 11 mils to 22 mils. The thicker the glove the better the chemical resistance and physical strength, but finger dexterity decreases as the thickness increases. The 22 mil glove has 4 times the breakthrough time and 1/2 the permeation rate as the 11 mil. The 15 mil glove provides a good balance between chemical resistance and finger dexterity. Flat Film Gloves: Additional chemical protection is achievable with the use of the Edmont 4H or Silver Shield Glove. These ambidextrous gloves have superior chemical resistance to a wide variety of chemicals, and are very thin and light weight. Constructed using "Flat Film" technology (a film layer construction of polyethylene (PE)/Ethylene vinyl alcoholTPE, cost $ 1/pair), they may serve as a liner for other gloves, or, can be used alone. Neoprene: The Edmont Scorpio 8-354 Neonrene Glove (14" length, heavy weight, knit lined, cost $3/pair) is designed for heavier duty work, provides some thermal protection, has a knit liner to absorb hand perspiration and is easy on and off, but has less finger dexterity than the Edmont Solvex 37-175 gloves. The chemical resistance performance is similar to the nitrile, but should noi be used with certain chlorinated solvents (i.e.; carbon tetrachlorine, chloroform, 1, 1, 1- trichloroethane, and perchloroethylene). Polyvinyl Chloride: The Best Hustler 725R PVC Glove (12" length, heavy weight, flock lined, cost $3/pair) is designed for heavier work duty, provides some thermal protection, and is easy on and off but again has less finger dexterity than the Edmont Solvex 37-175 glove. This glove has acceptable chemical resistance performance for 50% caustic and 10% hydrochloric or sulfuric acid (but not for high concentrated acids). It is generally not good for chlorinated solvents because it will remove the plasticizer from the glove and accelerates degradation. The Caustic Plant uses this glove to catch hot caustic samples because of the thermal protection. Permeation Data: The PPE Glove Permeation Table (attached) provides the approval status of the above gloves based upon information supplied by the manufacturer's of the gloves and the approval of the LAD Industrial Hygiene Department. This information is based on immersion of the glove into the chemical or heavy contact to the chemical and work experience. Chemicals for which the gloves are un-acceptable for use or for which data is not available may present a problem in determining the appropriate glove for the task. In most cases, the problem can be resolved by examining: 1) the potential type of contact during the task (brief, splash, immersion, etc.), 2) the characteristics of the chemical itself (corrosive to the skin, absorbed through the skin in toxic amounts), 3) the historical experience with the glove usage in the plant. Many times, gloves are worn for jobs only as a precaution, or to protect against the possibility of incidental contact for a short duration. In these cases, the gloves selected should provide protection similar to their normal capabilities (if more than incidental contact occurs, the gloves would be removed immediately and decontaminated or replaced). The Safety Section of the Operating Procedures should specifically state the type of gloves needed for the job. Page 1 ^ A 040459 CONFTOFNTTAi. Chemical Protective Clothing-General Service Suits Kappler Disposable Tyvek: The Kappler Disposable Tvvek coveralls are made of non-woven polyolefin filaments. They are primarily used in the Louisiana division when handling or working with various types of dusts, powders, dirt, oils and greases and other non corrosive, viscous liquids which will not penetrate the garment. Because of the economics ($2.44 ea.), these coveralls shall be disposed at the end of the work day. These coveralls k> have a protective barrier to liquids or gases. Kappler Polyethylene Coated Tyvek: The Kappler Polyethylene Coated Tyvek coveralls are made of a 1.25 mil polyethylene coating (yellow) applied to a Tyvek substrate. The protective barrier is good for inorganic acids and bases (i.e., chlorine gas, sodium hydroxide, sulfuric and hydrochloric acid), and heavy contact with oils and greases. It is not to be used with most organic chemicals although it would provide some splash protection. The garment has sewn seams that allow liquid penetration. Again because of economics ($4.44 ea.), these coveralls shall be disposed at the end of the work day. Kappler Saranex 23-P Laminated Tyvek: The Kappler Saranex 23-P Laminated Tvvek coveralls are made of a multi-layered barrier film (made by Dow Chemical) which is laminated to the Tyvek substrate. The barrier film is 2.0 mil thick and is composed of low density polyethylene (outer layer), ethylene vinyl acetate (glue layer), Saran (resin-based polymer barrier film) and finally glued with EVA to the substrate. It offers very good barrier protection to several chemicals typically used in the Louisiana Division (see attached list). The garment has a strapped overlay seam which is strong and prevents any liquid penetration. A storm flap over the zipper also prevents liquid penetration. In addition there is high tensile and tear strength and good puncture and abrasion resistance. It provides good splash protection and liquid holdout for those chemicals for which it is approved. Because of the cost of the overalls (~$20/ea.), it is used for selected jobs and then disposed of. It is considered "limited-use" clothing and not to be laundered for re-use. Neese Rainsuits: The Neese Rainsuits (2 piece suit or raincoat) are made of PVC/nylon/PVC layered construction which is 12 mils thick. The material does provide some chemical resistance but is not intended to be a protective barrier. The garment has water proof seams and the jacket/coat has a storm flap. They are available with or without a hood. The primary use of this item is rain protection and would provide some protection for dirt, grime, oil, greases and incidental contact with chemicals. The suits can be laundered for reuse. Chemical Protection-Heavy Duty Suils The chemical performance data base for the following suits is available from the Division PPE Committee or the Industrial Hygiene Department. Sta-Safe Gralite 20 and Hi-Glo Acid Suits: The Sta-Safe Gralite 20 (gray) and Hi-Glo (yellow) Suits are made of a special polyvinyl chloride compound that gives protection to severe corrosive and abrasive conditions. The Gralite 20 fabric is 30 mils thick and the Hi-Glo is 20 mils thick and consequently somewhat lighter in weight. The 2 piece suit consists of a jacket and bib overall (with polypropylene webbing shoulder straps). The seams are reinforced and the flexibility of the material permits general ease of movement. The jacket sleeve is designed to provide a liquid-tight seal when properly used with the rigid plastic inset placed inside a glove gauntlet. An accessory is a chemical hood made of the Gralite 20 material with hard hat insert and a large permanent inner window and replaceable cover window. A full face air-line respirator can be used inside the hood. Page 2 There is limited chemical resistant data on the Gralite 20 (see attached list) and no data on the HiGlo. The protective barrier is good for inorganic acids and bases i.e., chlorine gas, sulfuric acid (98%) and sodium hydroxide (50%) and should not be used with chlorinated solvents although it would provide some splash protection. These suits can be laundered and reused. The price of the Gralite 20 jacket/bib overalls is $118/$66, Hi-Glo jacket/bib overalls is $91/$48 and the Gralite 20 chemical hood is $ 180 respectively. Since there is limited chemical performance data, another very important factor is the plant's historical experience with the acid suit usage in that there have been no problems with suit deterioration or skin burns etc. Wheeler Aluminized PBI/Kevlar Suit: The Wheeler Aluminized PBI/Kevlar 2-piece suit is made of an aluminized film laminated to a PBI/Kevlar knit fabric. The 2-piece suit consists of a jacket and pants. The use of this suit is restricted for handling alkyl catalysts in the polyethylene plants because of the pyrophoric nature of the catalyst. The suit was recommended by Ethyl Corporation who is the supplier of the alkyl materials. The price of the 2 piece suit is $175. ^..In-house laboratory screening tests were performed by direct contact of the suit material with heptane and isopentane for 15 mins. There was no visual evidence of deterioration or liquid penetration through the material. Responder Life Guard Level A Suit: The Responder Life Guard Level A totally encapsulated suit is made of a multi-film construction which provides excellent chemical resistance to a broad range of chemicals. This material exhibits no permeation breakthrough after 8 hours of exposure to the ASTM F1001 chemical test battery using the ASTM F739 permeation test protocol. An additional 100 chemicals have been tested with successful results other key features include light weight, ease of mobility, durable seams, double over-lapping storm flaps and excellent physical strength. The 40 mil PVC window comes with a 5 mil FEP Teflon overlay. The suit comes with a replaceable butyl gloves and silver shield glove liners. The price of the suit is $450 and is classified as a "limited use" apparel to be discarded when it becomes contaminated or show-s signs of wear. Chemron Chemrel Max: The Chemron Chemrel Max Level A suit or coveralls are made of multi-film construction which provides excellent chemical resistance to a broad range of chemicals (similar as described in the Responder section and are also "limited use" apparel). The Chemrel Max 102 Level A suit is approved for the materials which are used-in the Vinyl II plant. The Chemrel Max 203 coveralls are approved for the materials which are used in the Vector SBC plant. MSA Blue Max Level A Suit: The MSA Blue Max Level A totally encapsulated suit is made of a multi-film construction which provides excellent chemical resistance to a broad range of chemicals (similar as described in the Responder section and are also "limited use" apparel). The MSA Blue Max Level A Suit is approved for the materials which are used in the Glycol II plant with emphasis on ethylene oxide. The suit window has a 5 mil FEP Teflon overly to the 40 mil PVC underlens which provide protection against liquid EO. Page 3 DO A 040461 CONFIDENTIAL Kappler Saranex 23-P/Tyvek Typical chemicals handled in LAD for which suit is approved AChemicals not approved A Vendor Data not available A methyl chloride * + epichlorohydrin * + meneral spirits styrene * + butadiene + methanol * ethylene glycol chlorine gas hydrogen chloride gas * hydrochloric acid (37%) * nitric acid (70%) * phosphoric acit (85%) * sulfur acid cone. * ammonium hydroxide (28%) * sodium hydroxide (50%) * ethylene glycol monobutyl ether (Dowanol EB) 1,1,2,2 tetrachloroethane * + carbon tetrachloride * + chloroform + perchloroethylene + ethylene oxide + toluene * methylene chloride + ammonia anhydrous * ethylene dichloride + 1,1,1 trichloroethane 1,2 propylene oxide + cyclohexane benzene + xylene propylene dichloride + propylene chlorodydrin * vinyl chloride + misc. oil and grease * Corrosive to skin and/or toxic by absorption + Known or suspect carcinogen A Based on Chemical Resistance Performance Data from the Vendor Pane 4 DO A 04046? C ONFTDFNTTAI Sta-Safe Gralite 20 Acid Suit Typical chemicals handled in LAD for which suit is approved AChemicals not approved A Vendor Data not available A chlorine gas sodium hydroxide (50%) * cell effluent * sulfuric acid (98%) * methylene chloride + perchloroethylene + toluene * isopentane sec-Butyl Lithium * phopshoric acid * silicon tetrachloride * propylene oxide + propylene dichloride + hydrochloric acid * propylene chlorohydrin * formic acid * * Corrosive to skin and/or toxic by absorption + Known or suspect carcinogen A Based on Chemical Resistance Performance Data from the Vendor A 0404^3 CONFTDFNTTAt DO A 0 4 0 4 A 4 CONFTDFNTTAt PPE Glove PertcaUoM Table * Corrosive to skin and/or Toxic through absorption. + Known or suspected human carcinogen. Rev:0894/MSB Acceptable for use with this chemical. Un acceptable for use with this chemical. lJ Data not avaiable.