Document 2N2R3edV0Zmrnx9EVGB03EqYp

fermrl t 'ck/der TEXAS OPERA TIOHS ASBESTOS HAHBBOOK 8 1 /,2 2 `lOiS ASBESTOS DUST HAZARD WEAR ASSIGNED PROTECTIVE EQUIPMENT DO NOT REMAIN IN AREA UNLESS YOUR WORK REQUIRES IT IBREATHING ASBESTOS DUST| MAY BE HAZARDOUS TO YOUR HEALTH REVISEB, APRIL 1985 ST0422718 THIS MANUAL IS AN UPDATED EDITION OF THE HANDBOOK PREPARED IN 1972 AND REVISED IN 1977 AND IN 1979. THIS EDITION WAS REVISED BY THE ASBESTOS TASK FORCE DURING THE FIRST QUARTER OF 1985. ASBESTOS TASK FORCE MEMBERS RED AHLICH ROGER DANIEL NELSON HOLLIS WALT NOACK JAN SETH RANDEL SNELGROVE BILL TOMLINSON MIKE TOWN WALTER WATTS DARRELL WORMAN 6 IL 2 Z 'i0 iS ST0422719 HANDBOOK FOR HANDLING ASBESTOS MATERIALS INDEX SECTION I. Purpose II. Sumnary III. Asbestos Awareness Asbestos Do's and Don'ts Communications and Review Procedures Example Pictures of Past Asbestos Uses IV. Safe Work Procedures General Requirements and Precautions Removal of Friable Asbestos Materials (Insulation, etc.) Removal of Non-Frlable Asbestos Materials (Translte, Haveg Piping, etc.) Sawing and Drilling of Materials Containing Asbestos V. Asbestos Safety Checklist VI. Notification of Demolition or Renovation Work Involving Asbestos VII. Industrial Hygiene Standards VIII. Consequences of Overexposure IX. Data Sheet of Properties, Health Hazards, and Precautions for Safe Handling of Asbestos X. Appendix A - Recommended Equipment XI. Appendix B - Sign and Label Specifications PAGE 1 2 3 4 5 9 10 11 12 13 14 15 16 17 19 20 S JO U 2 2 1 2 0 -1ST0422720 IZ L Z Z 'lO iS SECTION I PURPOSE The purpose of this handbook Is to define safe handling procedures for asbestos materials used In Texas Operations. The Intent Is to control the exposure of people to asbestos dust through the proper use of safe work procedures, protective equipment, and by the substitution of non-asbestos containing materials. Asbestos has been widely used as Insulation, structural wallboard, roofing material, etc. Asbestos fibers are used as a mechanical reinforcing matrix in insulation, roofing paper, certain piping systems, gaskets, brake linings, clutch plates, etc. Dow Engineering Specifications were revised in 1970 to exclude asbestos-containing insulation before the enactment of Federal regulations controlling the use and handling of asbestos. It Is Dow's philosophy to eliminate all uses of asbestos where possible and as adequate substitutes can be found. The OSHA standard (1910.1001) which became effective July 7, 1972, defines the precautions, procedures and controls required for asbestos handling. This standard also defines the allowable exposure levels and the manner of determining exposure levels. The National Emission Standard for Hazardous Air Pollutants (NESHAP) also established specific requirements for removal and disposal of asbestos-containing materials. Violations of these regulations may result In a citation or fine or both. Dow is committed to complying with or doing better than government regulations, as needed, to protect the health of people. References: Additional Information can be found In Texas Operations Safety Standard No. 45 and in Texas Operations Environmental Standard ES-314. -1- ST0422721 ST0 U2 2 1 2 2 SECTION II SUMMARY The health of those who breathe asbestos dust may be seriously affected. The Injury, known as asbestosls, scars the lungs and reduces their normal function. This phenomena has been recorded since 1899. More recently (In the last several decades), overexposure to asbestos has also been associated with cancer of the lungs. Anyone handling asbestos on a regular basis Is cautioned not to smoke due to the greatly Increased cancer risk. When working with materials containing asbestos fibers, care must be taken to minimize the dust exposures. Wetting of the material prior to handling, isolation of the work areas and use of respiratory protection are some of the measures that will help to protect people from overexposure. These procedures are particularly Important In the removal of old, deteriorated Insulation and during the sawing of translte. Disposable protective coveralls provide the needed protection. Disposable clothing Is to be disposed of In polyethylene bags properly labeled. In cases where regular coveralls are used, then a double changeroom with two lockers must be used to separate work clothes from street clothes. Asbestos contaminated clothing shall be placed In labeled polyethylene bags for special laundering. Do not wear home or take home for laundering asbestos contaminated clothing. Rubber boots must be worn and washed off before leaving the asbestos work area. There are a number of dust respirators which have been approved for asbestos handling (see Appendix A). Special protective clothing, such as coveralls, head covering, and gloves may be required on some jobs. These requirements should be determined In the prejob planning prior to starting the work. (See Appendix A for advise on recommended equipment.) All asbestos waste (old insulation, dust collector solids, disposable clothing, gaskets, packings, etc.) must be put In approved containers (polyethylene bags are available In Dow Stock) for disposal. The bags must be properly labeled to warn of the asbestos hazard. The Safe Work'Procedures outlined In this handbook are minimum guidelines for various type asbestos jobs. The project supervisor must provide specific procedures for each job that are based on the guidance from this handbook'to assure the protection of people. The "Asbestos Safety Checklist" should be utilized for each asbestos handling job regardless of size. -2- ST0422722 e z L Z Z 'iQ is SECTION III ASBESTOS AWARENESS SUBJECT: ASBESTOS DO'S AND DON'TS This section Is provided as general guidance when working with or near asbestos-containing materials. DO'S 1. Get positive Identification by sampling and analysis at Analytical Services, phone 1075. 2. Take sufficient samples. Some vessels, equipment, etc. may contain more than one type of Insulation. Asbestos materials may be covered by refractory, siding, or Insulation. 3. Remember that materials other than Insulation, fireproofing, and translte siding may contain asbestos (shingles, Haveg piping, furnace refractories, pump packing, pipe gaskets, brake shoes, etc.) These materials should be disposed of In an approved container and sent to the designated asbestos landfill. 4. If asbestos Is present, consult the appropriate section of this handbook. Friable materials containing more than 1% by weight must be handled as asbestos. 5. All asbestos waste (old Insulation, dust collector solids, disposable clothing, gaskets, packing, etc.) must be put In approved containers (polyethylene bags are available In Dow Stock) for disposal. The bags must be properly labeled to warn of the asbestos hazard. DON'TS 1. Do not sandblast materials containing asbestos. When sandblasting adjacent areas, protect the asbestos materials from overblast. Examples of Items to be protected are translte walls, pipe Insulation, fireproofing, etc. 2. Do not juse new materials containing asbestos where an adequate alternate exists, such as Insulation, fireproofing, translte siding, Haveg piping, weatherproofing, and cooling tower materials. Major Manager approval Is required when using new asbestos materials for matching replacement/repair of existing asbestos covered structures or equipment If a suitable alternate Is known. 3. Do not clean brake drum and clutch housings with compressed air. This procedure may fill the surrounding atmsophere with asbestos fibers. An acceptable method Is to use an approved vacuum. Dispose of the debris In approved containers and send to the designated asbestos landfill. -3- ST0422723 ST0 l . 2 2 1 ?Ji SECTION III ASBESTOS AWARENESS SUBJECT: COMMUNICATIONS/REVIEW PROCEDURES It Is the responsibility of the plant superintendent/owner of the area that has the asbestos removal work to be done to notify Environmental Services at extension 1505 a minimum of 25 days prior to starting the actual removal work, and to specify who the project supervisor Is that will be handling the job. Environmental Services has the responsibility for notifying the Texas Air Control Board of applicable jobs In writing 20 days prior to any work starting. Environmental Services has the responsibility of notifying Industrial Hygiene and the Safety Department of the jobs. The Safety Department will in turn notify the Safety Director of the area Involved of the planned asbestos removal work. The project supervisor is responsible for setting up a meeting with the Industrial hygienist and the Safety Director for his area to discuss the job, arrange for audit of the job and decide If industrial hygiene monitoring Is needed. The Safety Director and the Industrial hygienist are responsible for doing the auditing and industrial hygiene monitoring during the job as needed. Audit observations of the asbestos removal job and Industrial hygiene monitoring data, with reconmendations, should be handled in writing to the project supervisor with copies sent to the plant superintendent, safety director, and Manager of Industrial Hygiene. Reconmendatlons should be responded to In writing with distribution to the same people. -4- ST0422724 SECTION III ASBESTOS AWARENESS SUBJECT: Example pictures of past asbestos uses. Partial listing of examples that we must handle according to the guidance provided In this manual. S 2 L 2 i`i0 iS Figure 1. Many of our dally jobs Involve repairing flange leaks, replacing valves, etc. The old insulation that Is removed In many cases will contain asbestos. Figure 2. Asbestos Insulating tape has been commonly used In the past to Insulate small lines and tubing. -5- ST0422725 SECTION a I ASBESTOS AWARENESS SUBJECT: Example pictures of past asbestos uses. Partial listing of examples that we must handle according to the guidance provided In this manual. S lO l> 2 2 1 2 6 Figure 3. There still remain some asbestos blankets that need disposal. Figure 4. Also used in past years was fiberglass Insulation mixed with asbestos fibers. , ST0422726 SECTION III ASBESTOS AWARENESS SUBJECT: Example pictures of past asbestos uses. Partial listing of examples that we must handle according to the guidance provided In this manual. iZ iZ Z 'lO lS Figure 5. Structural fireproofing often contained asbestos materials. Figure 6. Asbestos Insulation blocks in combinations with refractory materials exist In many of our boilers and furnaces. 7- - ST042272 SECTION III ASBESTOS AWARENESS SUBJECT: Example pictures of past asbestos uses. Partial listing of examples that we must handle according to the guidance provided In this manual. 1. 15 i J, CD Cs! O'-' CNJ CD LD i I ii Figure 7. Translte which contains asbestos has been extensively used In the past In many applications In Texas Operations such as cooling towers, buildings, warehouses, etc. Asbestos Is also present In cemesto board and asbestos siding shingles which were also used In various type buildings. II Figure 8. Our most extensive use of asbestos In the older plants was the thousands of square feet used on piping and equipment Insulation. -8- ST042272 SECTION IY SAFE WORK PRACTICES SUBJECT: GENERAL REQUIREMENTS AND PRECAUTIONS 1. The acceptable levels of exposure and the procedures for handling and disposing of asbestos, are regulated by the Occupational Safety and Health Act and the EPA National Emission Standards for Hazardous Air Pollutants. For employees who may have exposures exceeding acceptable limits, monitoring must be done at least every six (6) months. Acceptable limits are: EPA Air Standards - no visible emissions, OSHA - 2 FIBERS/CC 8 HOUR TWA. 2. Handle materials In a manner that will minimize generation of and exposure to asbestos dust. Use water to moisten the material (during sawing, removal from containers, etc.) If there are no problems with material damage or operation safety. 3. Avoid breathing asbestos dust. Make sure that approved respirators are available and that the proper use of this equipment Is understood. (See Appendix A.) Disposable respirators must be disposed of dally. 4. Keep all personnel, not directly Involved In the asbestos work, away from the area. Anyone required to work In the "Isolated" area must first be advised of the potential health hazards and must observe the minimum safety requirements for asbestos related work. 5. Government regulations require the posting of caution signs In areas where the asbestos concentration can exceed acceptable levels. These signs should be placed at the boundaries of the Isolated work area to warn people not directly Involved In the asbestos work. (See Appendix B.) 6. Good housekeeping Is essential to avoid contaminating other work areas. Any asbestos accumulation must not be dry swept. Wet vacuum, water wash down or squeege Is acceptable. The cleanup should be done as soon as the asbestos handling Is completed, or dally, as a minimum. In some cases, continuous cleanup and other equipment such as tarpaulins, etc., may be required. Wind conditions should be considered to prevent spreading asbestos throughout the surrounding areas. 7. Along with waste asbestos, all contaminated materials must be wetted and placed In labeled polyethylene bags. The properly sealed plastic bags are to be sent to the designated asbestos landfill. (See Appendix A A B.) 8. Slipping or falling Is a hazard to be considered when working around wet asbestos. 9. The superintendent/owner must contact Environmental Services (1505) a minimum of 25 days prior to starting asbestos removal work and specify a project supervisor. 10. The project supervisor must provide a Safe Work Procedure for each job which Includes as a minimum the Safe Work procedures listed In this handbook. The Safe Work Pro cedure will be reviewed with the Industrial hygienist and safety director for the area and the personnel performing the work. 11. The project supervisor must meet with the Industrial hygienist and safety director for the area to discuss the Safe Work Procedures, arrange for audit and determine If Industrial hygiene monitoring is needed. -9- ST0422729 6E (.22`i0ii> SECTION IV SAFE WORK PROCEDURE SUBJECT: REMOVAL OF FRIABLE ASBESTOS MATERIALS (INSULATION, ETC.) Minimum Safety Equipment Requirements: 1. Hard hat must be worn. 2. Sfdeshleld glasses must be worn. 3. Approved dust respirator must be worn during material removal and also during cleanup. 4. Disposable coveralls with hoods must be worn during removal and cleanup operations. Disposable coveralls will be disposed of dally by placing In properly sealed plastic bags and sent to the designated asbestos landfill. 5. Rubber boots are required and must be washed before leaving the Isolated area. 5. A sufficient area must be taped off and signs placed to warn of asbestos removal work and possible presence of asbestos dust. Wind direction should be considered (see Appendix B). i. An Asbestos Safety Check List (page 13) must be filled out prior to the job and properly approved. 8. All other safety equipment which Is required by job location must be used. (Read Area Safe Work Permit.) Special Precautions: 1. Comply with General Requirements and Precautions. 2. Use water to wet down the material before, during and after removal as necessary to prevent alrborn emissions. Avoid high pressure blasting. Use a gentle spray/stream of water and avoid over wetting to the point that the material crumbles and turns to mush. An acceptable method Is to use a 2 gallon hand sprayer. 3. Material must not be dropped to the ground. Pre-job planning must Include provisions for keeping deteriorated material In place after jacketing is removed. Tarping of scaffold landings, rubber bands, etc., should be considered. * 4. Upon removal, provisions are needed so that the asbestos material can be placed directly Into labeled polyethylene bags or containers approved by Environmental Operations. This will prevent the scattering of asbestos dust throughout the work area. Bags or containers must be lowered to the ground, not dropped. 5. After material removal, a thorough Inspection and cleanup must be made to remove all asbestos materials. Examples of areas to be cleaned are pipe/vessels, scaffold boards, piperacks, surrounding area at grade, etc. -10- ST0422730 SECTION IV SAFE WORK PROCEDURE SUBJECT: REMOVAL OF NON-FRIABLE ASBESTOS MATERIALS (TRANSITE, HAVES PIPIN6, ETC.) Minimum Safety Equipment Requirements: 1. Hard hat must be worn. 2. Sldeshleld glasses must be worn. 3. Approved dust respirator must be worn during materials removal and also during cleanup. 4. If sawing or drilling Is required as part of the job then an Asbestos Safety Checklist (page 13) must be filled out prior to the job. The safe work procedure for sawing and drilling of materials containing asbestos must be followed. 5. All other safety equipment which Is required by job location must be used. (Read Area Safe Work Permit.) Special Precautions: 1. In some Instances, the use of water to wet the material to prevent alrborn emissions may be required. 2. Materials should not be handled In a manner that will creat dust. 3. Upon removal, provisions must be made with Environmental Operations for disposal. 4. After removal, a thorough inspection and cleanup must be made to remove all asbestos material. Examples of areas to be cleaned are pipe/vessels, scaffold boards, piperacks, surrounding area at grade, etc. -11IIl ST0422731 lE L Z ^ iO lS SECTION IV SAFE WORK PROCEDURE SUBJECT: SAWIN6 AND DRILLING OF MATERIALS CONTAINING ASBESTOS Minimum Safety Equipment Requirements: 1. Hard hat must be worn. 2. SI deshield glasses must be worn. 3. Approved dust respirator must be worn. 4. Disposable coveralls with hoods or slicker suit with hood must be worn during sawing, drilling, and cleanup. Disposable coveralls will be disposed of dally by placing In properly sealed plastic bags and sent to the designated asbestos landfill. 5 . Rubber boots are required and must be washed before leaving the Isolated area. 6. Tape off area around sawing and cutting operations and place signs to warn of asbestos material (see Appendix B). 7. An Asbestos Safety Checklist (page 13) must be filled out prior to the Job and properly approved. 8. All other safety equipment which Is required by job location must be used. (Read Area Safe Work Permit.) Special Precautions: 1. Comply with Items 1-8 of the General Requirements and Precautions (page 9). 2. Materials containing asbestos shall bqjgoduuLttet (cutting, drilling, etc.) Air driven tools shall be used and materials "adequately wet" with water to eliminate dust hazards. Runoff water shall be contained and wet debris collected. Dispose of wet debris In containers approved by Environmental Operations and send to the designated asbestos landfill. Caution should be exercised when using water above electrical equipment, ceilings, etc. In these situations a means to divert runoff water to a collection system should be considered. 3. Materials should be handled carefully to avoid breakage. * 4. Provisions are needed so that scrap asbestos material can be placed directly into labeled polyethylene bags or containers approved by Environmental Operations and sent to the designated asbestos landfill. This will prevent the scattering of asbestos dust throughout the work area. Bags or containers must be lowered to the ground, not dropped. 5. After job completion, a thorough Inspection and cleanup must be made to remove all asbestos materials. Examples of areas to be cleaned are pipe/vessels, scaffold boards, piperacks, surrounding area at grade, etc. -12- ST0422732 SECTION V ASBESTOS SAFETY CHECK LIST JOB DESCRIPTION: DATE LOCATION _____ ______________________________ PRE-JOB REQUIREMENTS: 1. Environmental Services Contacted (ph. 1505)? Yes ___ Name: ___________________________ Date: Dow Project Supervisor: ________ 2. Safe Work Procedure Written? Yes No Date: 3. Project Review Held? Yes____ No___ Industrial Hygienist: Date: Safety Director:Date: Craftsmen: Date: No Safe Work Procedure Approved: Hygiene Monitoring Required: Audit Required: Auditor Assigned: Phone: YES NO ___ __ ___ __ ___ __ JOB REQUIREMENTS: YES NO 1. Safe Work Procedure reviewed: 2. Area taped off and signs up to warnothers: 3. Have all involved personnel been informed? 4. Block personnel informed? 5. Auditor notified: 6. Water available to control dust: 7. Has disposal of asbestos debris beenarranged? 8. Arrangements for clean-up made? 9. Safety Equipment Required Disposable Coveralls with Hood _ ___ Dust Respirator _ ___ Other: See Safe Work Permit Side Shield Glasses Rubber Boots NOTE: Work may commence when Safe Work Permit issued. 10. Final clean up complete (all traces of asbestos removed) Yes___ No 11. Job Complete: Dow Project Supervisor: Date: 12. Send completed Checklist to Industrial Hygiene Services - B-10TI ^$ 7 0 H ?-2 -13- ST0422733 ??13U SECTION VI NOTIFICATION OF DEMOLITION OR RENOVATION WORK INVOLVING ASBESTOS The National Emission Standard for Hazardous Air Pollutants (NESHAP) established specific requirements for the removal of friable asbestos containing materials and established reporting requirements. The Texas Air Control Board (TACB) has assumed the responsibility of enforcing the asbestos regulations. It Is the responsibility of the superlntendent/owner to contact Environmental Services (1505) 25 deys prior to the start of any asbestos work. Notification Requirements 1. Demolition - All demolition projects must be reported. 2. i CD U- Planned Renovation - To determine If notification Is required, predict the amount of friable asbestos, either as separate projects or coupled with other associated facility renovations, to be removed from a facility during the calendar year. Asbestos removal resulting from small jobs such as repair of leaking valves, leaking pipelines, or other equipment maintenance should be Included In the estimate. If the additive amount exceeds 260 linear feet on pipe or 160 square feet on other facility components, notification Is required. Definitions The following definitions and explanations are given to assist the superintendent/owner In preparing the notification: 1. Friable Asbestos - Any material containing more than one percent asbestos by weight that hand pressure can crumble, pulverize, or reduce to powder when dry. 2. Demolition - The wrecking or taking out of any load-supporting structural member of a facility. 3. Renovation - Altering in any way one or more facility components. 4. Planned Renovation - Renovation operation in which the amount of friable asbestos material that will be removed or stripped within a given period of time can be predicted. Individual non-scheduled operations are Included If a number of such operations can be predicted (l.e., leaking valves). 5. Facility - Any Institutional, comnerclal, or Industrial structure. Installation, or building. An individual process or production block will be considered a facility In Texas Qperatlons. References Additional Information can be obtained from Texas Operations Environmental Standard ES-314. -14- ST0422734 S e L 2 2 iiO iS SECTION VII DOW INDUSTRIAL HYGIENE GUIDE Eight-hour time-weighted average exposures to asbestos fibers shall not exceed two fibers per cubic centimeter. Peak exposures shall not exceed 10 fibers per cubic centimeter. Asbestos exposures between 2 and 10 flbers/cc shall not exceed fifteen minutes at any one time and must be controlled so that the eight-hour time-weighted average of 2 flbers/cc Is not exceeded. Asbestos concentrations of 2 or 10 flbers/cc are not noticeably dusty conditions; the absence of visible dust should not be used as an Indicator of acceptable levels. Where a potential for exposure exists, the asbestos concentrations must be determined by a very specific method using membrane filter monitoring and phase contrast microscopy analysis. For analytical purposes, an asbestos fiber Is defined as an asbestos particle longer than five microns with a length to diameter ratio greater than three. -15- ST0422735 Consequences of Exposure to Toxic Amounts COMPOUND: ASBESTOS EYES: Contact with the dust can cause mechanical irritation similar to that caused by any solid particle. SKIN: Unlike fibrous glass, the fibers do not cause discomfort or mechanical irritation. INGESTION: Some evidence suggests that long term ingestion of asbestos may increase chances of stomach cancer. DUST INHALATION: SHORT TERM: High concentrations (well above acceptable levels) may cause only moderate discomfort from mechanical irritation. S T0U 22136 LONG TERM: The fibers can cause scarring of the lungs (Asbestosis). A cancer of the chest lining (Mesothelioma) may also result from asbestos exposure. Most important, asbestos exposure and cigarette smoking greatly increase the risk of lung cancer. IHG: ACGIH TLV is 2 fibers/cc (Chrysolite), 0,5 fibers/cc (Amosite), 0.2 fibers/cc t (Crocidolite), 0.5 fibers/cc (other forms)- . 1984-35 TLV Book. AUTHOR: Checked by: G. H. Flores R. L. Daniel - Industrial Hygiene G. C. Jersey - Toxicology R. E. Flake - Medical Issue Date: Revised 6-6-80 Revised 2/22/85 RESTRICTED: for use within The Dow Chemical Company only. -16- ST0422736 HEALTH & ENVIRONMENTAL RESEARCH Industrial Hygiene & Toxicology Laboratories THE DOW CHEMICAL COMPANY GENERAL DATA SHEET OF PROPERTIES, HEALTH HAZARDS, AND PRECAUTIONS FOR SAFE HANDLING OF MATERIALS mur 1 .................. ............. -- ------ uSLiduwAN Wtlt4T iMouarniAb h,i(n( tuioi Asbestos See (2) over LA*OH COMPSUTIOH ICIUN* #IT c ? 7UMUIUU1 IT. e-- 3T- L*'l None AEiUr ------ IIJNITiaU TEUP.------ TJELTIH* peiUT Hone___ Ta^Lr^Pfi.------ 'C8R ' " JjNIPglL JlegllBible Flhrnm Mhltf, nr nrim II T3BT Won* Excellent iye SKM ourr or MIST VAKM 03 0 a CLASSIFICATION OP TOKIC PiOPf iTIES NAT CUH * OCSPONSC 00 MO MOt| TNAM ifl ILICMT TO 1UONT TSAMIITOST PAM AMO/09 ILlGMT TlAMICNT COONCAL MMt AMO/OO lOOtTATlOM 09 TMC CTfUOL MAY CAM SUMtCiiMT MJUOT TO TMC tYf TO 9CSULT IN LOU OP Tint PffQM QO. 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MCLUOM OCATN. D VU VCKY MOOT IXPONJOl ULL CAUU UOMUC nrrCJNC NUUOT 00 OCATN. COTION a AMOUNTS mo* mat SC SMAU.OMD WCIOCNTAL TO IN KTOUSTOUL NAMOUMO PILL CAUU INJUOT. NOMVCO. ip sumtamtial guAMTmii mulb sc bvallomu mooc 00 Less scoious cppccti mat kqa. _ LJ AMOUNTS WNCM MAT t *ALLO*tO INCUINTAL TO IMUSTOtAL MANO> LINO AMO USC MAT CAM SCOIOUi INJUOT. COMMCNTS ST042273T -17- CONFIDENTIAL - FOR THE USE OF DOW EMPLOYEES ONLY rONM C-10140 MMINTOO IN U.S.A. N-T-T4 CFRONT ST042273 DIG0EES 00 EXPOSURE IILATID TO TTNtJ 00 O0SBATMN 1 NO CONTACT II CONTACT OCCA1IOIML IN GAILY CONTACT GROK IV CLOKNBT.AYCT warncmaaactioiiio it mmti oniiatoh mtn imonmnt molatio pmn tm ama. TM PtMCM INTER--ROLATMAOVMWLLOtMOmTIMNlimiH NMTICTMN OUTUNM NON IT OCLON. or mm mioiaoactmixm clomo ititini mtn mmnnomt outdm tm amai ITauNONT CONTMCl MOlirNCAI. NAMUNO ON HATOBALA " MLA- IIAHNLU ANV CDNTHNJOM MACTOM. 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IPIOPK ITIM "LL OICTATIO Al IMG AMU T UM OUT >T TN ITAIT ON U0 UOM OAT. COUUMD IT CMCkMTANCL A MMSNtOATONT NOOTICTML M NMTCenON AlOkAXO AON IINM1 ON THIOTT M. OUOATION OO LtW TO OtTMMLT OWTT aTHOMMOU. IIMWU ON LONMO OUOATION "LL OfOUlOf TNI UM ON A OUIT MINIOATOO MAOIM no aNNMUAL ON TNI U.L HjalAUOP AMI N00 TNI UM "TN tOncoum.__________________________________________________________ A M MIICWTIM NOeniACT. ANT I1N0M0I TO MWOULT OMTT ATNOINMOII 0 MJNMUTOO MAIMS TMf ANNSOVAL ON TM U.V UM "TN TOIIC own. mowoia ourr uionnmhnoo ANTIXNOWSI TO own ATMINMilM "LL IHUAI TNI UM ON AN AMh UNI MINIOATOO. ALOVOI NAM. 00 CMONOl NAM. M NttCAimOW MCIMAOT POO NNGLI IIMWU ON M MONO THAN C tin ""pm. LONMO tXNOOUOD IITNIO VNOLI ON MPIATID. sill m- OUMM OAANaAA as MAPISATOS ISMNNM "TN aNNSONSMTI CANMTIV CD CO I-- C--1 O-J O INGESTION V-- t/* COHNINTI M NMCMIOM MCCHAOT N00 NNSLI MNOMOIS ON LIM THAN . 1/5 HOW. LONMO HNOLI III----- 0MM^IMNN|rn * IKNOHIOII "LL MOWM A V "TN ANNNONWATI CAMSTU. 0 OAI NAM "TN ANNSONOIAT! GAASSTIO MOMOM AT ALL TINOV . ITACUATI ASIA AT I MI AM lira 0M.T "TN ASK.IM shnisatov iliwm NAM M MM SSM. 0 M WNUMAL NSOCIOUOO Mi *COOO NOACTICE IIOUIOCS THAT SIOU AMOUNTS ON ant chemical I REMOVED poom the siin as SOON AS IS practical | NOM AM TOMCeOINOULIMT SI NSOMNTMTM SOOT ASIA. HAMS * AM PAM MOULO II TANKS 1IP0III ~ AM IATMS. SUITAiLE GASMASK canister (Saa SLP Tali Bullatln 13) Approved dust respirator NOTE: Asbestos workers who smoke cigarettes have Increased risk of lung cancer. ^Grossly contaminated clothing should be removed Immediately and must be thoroughly cleaned before reuse. (2) 1984-85 TLV book published by the ACGIH, page 40, appendix A.l.a. All. Human Carcinogana. Subitoncm, or lubstmew usociatDd with industrial procDMM. rtcog* nizsd to him carcinogenic or coeareinogonic potontiol. with an MSignod TLV: Asbestos AmositB.... Chrysotile... Crocidolite.. Other terms 0.5 fiber > 5pmrcc 2 fibers > Simla 0.2 fiber > 5mit)/cc 2 fibers >S/m/cc SIGNED REVISED: DERapp CHECK(0 RRLangner OATS 3/24/77 DATE 4/25/77 Reviewed romae c-inw 17 L.` Uanie oo mot photocopy -18- IHG change 2/85 (SACK) ST0422738 APPENDIX A RECOMMENDED EQUIPMENT The equipment listed below has been approved for the specific use, but Is not necessarily the only equipment available. 1. Dust Respirator Dow Stock No. Wilson Dust Respirator 1200 1200 S (small) Vendor Vendor Wilson Replacement Dust Filter RIO with R683 Retainer Vendor Wilson Disposable Respirator 1400 Vendor 3M Model 8710 Disposable Respirator 01-4165 3M Model 9920 Disposable Respirator with exhalation valve Vendor 2. Clothing Disposable Paper Coveralls - Hooded Small Medium Large Extra Large 01-03551-001 01-03552-001 01-03553-001 01-03554-001 Disposable Paper Coveralls Small Medium Large Extra Large 01-03551 01-03552 01-03553 01-03554 3. Labeled Bags for Asbestos Disposal Polyethylene Bag, Special Purpose, 4 mil Polyethylene Bag, Special Purpose, 6 mil 17-30520 17-30522 6 E U 2 `l0 iS -19- ST0422731 APPENDIX B Dow and the U.S. Government require the posting of signs and labels at locations where asbestos related work Is being done to warn of possible air-borne concentrations of asbestos fibers that may exceed exposure limits. 1) Asbestos Warning Signs CAUTION ASBESTOS DUST HAZARD AVOID BREATHING OUST WEAR ASSIGNED PROTECTIVE EQUIPMENT 00 NOT REMAIN IN AREA UNLESS TOUR WORK REQUIRES IT. MCATMMtO 4UUTOI OUST MAY Bf MA2AMOOVS TQ VOOm MCA4.TM 14" x 20" Asbestos Hazard Signs Block lettering on a yellow background Dow Stock #01-03374 2) Asbestos Caution Labels CAUTION UirWMtMflTHMHt cum iiisr IWirMM ISMSTOIIUST n mu mnut Mir MM 4" x 4" Vinyl Asbestos Hazard Labels Dow Stock #01-03372 -20- ST0422740