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1983 June 15 RE: ASBESTOS EXPOSURE AND POTENTIAL HEALTH HAZARD Ref: I.H Technical Bulletin No. 83-3 (Attached) The need for greater control over potential exposures to asbestos is becoming more apparent. The attached Technical Bulletin, prepared by Joan Sander, outlines Alcoa's new policy on exposure levels and industrial hygiene precautions, and reiterates the Medical Department's program for medical surveillance. Specific requirements are triggered by the Action Level, defined as 0.1 fiber/cc, and the new Alcoa Permissible Limit of 0.5 fibers/cc. At these relatively low concentration levels, the analytical method (P&CAM 239-asbestos fiber count) lacks a high level of precision due to inherent inaccuracies associated with the method. Therefore, a sampling strategy based on several samples should provide a characterization of job tasks, rather than basing decisions on a single sample. Likewise, professional judgment is advised for interpretation of results. Please call upon the Corporate Industrial Hygiene staff for assistance in this area. Due to the serious health concerns associated with asbestos exposures, all potential exposures to asbestos fibers must be eliminated or controlled to the Alcoa Permissible Limit. Employee training, medical surveillance, routine air monitoring, and personal protective equipment are essential elements of such a control program. Please let us know if we can provide assistance with any aspect of asbestos replacement or control. E. E. RUMBERGER EER/eds Attachment Distribution: I.H. Mailing List I.H. Plant Contacts Industrial Hygienists - International I.H. Division - Pittsburgh fc ATC I.H. Technicians Pittsburgh fc ATC - General Qalcoa APC 004467 Industrial Hygiene Technical Bulletin No. 83-3 Date: 1983 June 15 RE; ASBESTOS EXPOSURES Oue to the very serious nature of asbestos exposure hazards, a closer look was taken at our policies and procedures for controlling such ex posures. Starting In 1978, Alcoa Implemented an Asbestos Replacement Program with the objective of making our operations as free of asbestoscontaining materials as possible. While the program has met with con siderable success, there are still some applications where acceptable substitutes have not been found. Likewise, we currently have numerous applications where asbestos products were used In past construction and are still In place. This situation may pose a potential health hazard In the event that asbestos-containing materials become capable of fiber release (l.e. due to deterioration, water damage, etc.), or during ren ovation or demolition activities. The purpose of this technical bulletin Is to clarify Alcoa's policy and procedures for Job tasks Involving exposures to asbestos fibers. It ap plies to both renovation or demolition of asbestos-containing materials, as well as routine or repetitive job tasks Involving asbestos exposures. Attached please find a one page flow chart entitled "Asbestos Exposure Procedures" which summarizes the requirements outlined In the following text based upon job activity and air monitoring data. I. DEFINITIONS A. "Asbestos fiber" means a fibrous form of asbestos longer than 5 microns with a length-to-dlameter ratio of at least 5 to 1, and with a maximum diameter of 3 microns. B. "Friable asbestos" means any material that contains more than IX asbestos by weight and that can be crumbled, pulverized, or reduced to powder by hand pressure when dry. C. "Action Level" Is defined as 0.1 flbers/cc (8 hour TWA). Med ical surveillance, air monitoring and employee training require ments are triggered at the action level. D. "Alcoa Permissible Limit (APL)" Is defined as 0.5 flbers/cc (8 hour TUA). Respiratory protection Is required when exposures may exceed the APL. Likewise, a respiratory protection program (employee training, fit testing, medical approval, etc.) must be Implemented. E. "Routine or Repetitive Job Tasks" means employees engaged In work activities Involving exposures to asbestos fibers on an average frequency of an 8 hour shift per month or greater. (Ex amples Include working with marlnlte headers, trough linings, thermocouple wire, brake lining, etc.). EJalcoa AFC 004468 Industrial Hygiene Technical Bulletin 1983 June IS Page 3 celve an annual medical examination. This periodic evaluation will include a questionnaire to elicit the symptomatology of respiratory disease, pulmonary function tests (FVC and FEVi.o), and a chest roentgenogram. Employees should be notified of* any abnormalities within 30 days of such a finding by the evaluating physician. B. Employee Training All employees exposed to asbestos concentrations above the action level shall receive annual training In the proper handling of asbestos. This program should Include an ex planation of the following: (1) The requirements outlined In this bulletin. (2) Hazardous properties of asbestos. (3) Work practices and engineering controls utilized to reduce exposures. (4) Safe work procedures for handling asbestos-containing materials. (5) The effectiveness of personal protective equipment. Attendance at such training sessions should be documented and filed appropriately. C. Air Monitoring All tasks Involving potential exposures to asbestos require baseline sampling. Routine air monitoring should be contin ued on a six month basis for routine or repetitive job tasks with asbestos concentrations at or above the action level. If exposure levels are found to be below the action level, air monitoring should be performed If process or product changes occur which might potentially increase the airborne fiber concentrations. If reliance on engineering controls Is necessary to reduce exposures below the action level, annual monitoring should be performed to evaluate the effectiveness of the controls. 0. Respiratory Protection Respirators are required of anyone performing a job task whose potential exposure to airborne asbestos fibers may exceed the APL. This would include all demolition/renovation activities, and may Include routine or repetitive job tasks, depending upon Industrial hygiene sampling data. For exposures up to 10 flbers/cc, the following NIOSH approved respirators are acceptable for protection against asbestos fibers: AFC 004460 Industrial Hygiene Technical Bulletin 1983 June 15 Page 5 tos products have been found. Efforts to find replacements for the remaining applications will continue. It Is Imperative that accurate records be kept to Identify areas where asbestos-containing materials are being used, or have been used In past construction. To minimize potential health hazards associated with renovation or demolition of asbestos products, all maintenance projects should be reviewed for potential asbes tos exposures prior to starting the job. If asbestos Is suspected, the material should be treated as such unless laboratory analysis confirms otherwise. Samples of bulk material can be analyzed by Alcoa's Environmental Health Laboratory. Asbestos materials In good condition which do not represent likely exposures should not be removed simply because they contain asbes tos since doing so may present a greater hazard during the actual removal. However, a routine Inspection program of the material should be Implemented to Insure that the situation does not change. If you have any questions concerning the above, please do not hesitate to contact me. JOAN E. SANDER JES:sc Distribution: 1. H. Distribution List I. H. Plant Contacts Industrial Hygienists - International I. H. Olvlslon - Pittsburgh & ATC I. H. Technicians Pittsburgh & ATC - General APC 004462 (9 uUJ y~ 0O <tC a. >cr ULUl 1 >O- oe s! aco. 3 QUi C3 I- O c--_>J > Ul 0< > co M CO HUuJ UJ Ul oae co Ul ui s ae j- 3 < o _i CaOcOo. <hzo Koiza-- wc_> (o_j ASBESTOS EXPOSURE PROCEDURES! JobI Ac t iv it y AL (A c t io n Le v e l ) 0.1 F ib e r s cc TWA/ APL (A lc o a Pe r m is s ib l e L i m i t ) - 0.5 F ib e r s / cc TWA ae O CO CO CO Ul CO Ul 13 aoae. a. o APC 004463 J. DAMIAMO INDUSTRIAL HYGIE 1983 June 20 u * <? " DR. L. F. SCHALLER HJf, .. UUf ' SSH !09 .V .co. : RMJ CV2 PW " LMMHff LOCATION MEDICAL DIRECTOR RE: INDUSTRIAL HYGIENE MONITORING AND TRAINING SCHEDULE Per our discussion, I have completed a general monitoring and training schedule for Point Comfort Operations. The schedule Is Intended to complete our baseline exposure data for each job classification and meet our needs for education and training. The noise exposure evaluations of Maintenance personnel may support the relaxation of our rules and/or areas requiring hearing protection. I will furnish each manager a brief outline of our schedule specific to their department. I plan to meet with each manager to solicit their views and answer any questions. The general outlines are attached. I am not plan- ' > distribute our detailed monitoring schedule. DAMIANO JD/cmp Attachments ;j i1 vX J ALCriA APC 004464 GENERAL MONITORING SCHEDULE INDUSTRIAL HYGIENE DEPARTMENT POINT COMFORT OPERATIONS Schedule Prepered: 1983 May 09 Monitoring listed In order of priority. 1. Keebler-Thompson scaling mud tank operation. Clarification Department. a. Full shift noise dosimeter monitoring in cab, two days. b. Sample atmosphere of each tank where Keebler Thompson machine is used. Test for CO, N02 and NO. 2. GEORGE S. boat operators, Neumin Production Company. a. Full shift noise dosimeter monitoring each operator, two days. 3. Field Welders-Maintenance Department. a. Monitor full shift exposure to welding fumes per schedule (attachment 1). 4. Machine Shop Welders--Maintenance Department. a. Monitor full shift exposure to welding fumes and collect detector tube air samples per schedule (attachment 2). This schedule includes Machinists conducting metallizing. 5. Dust exposure monitoring--Raw Materials Department a. Monitor ship unloading/transfer to storage of Boke' bauxite. - Monitor three days, full shift exposure to respirable dust, preferably days when bauxite is dry. Jobs to Monitor: (1) Dozer and front end loader operators (bauxite piles). (2) Raw Material Operators. (3) Laborers (in ship holds). (4) Conveyor Tender, No. 3 belt. - Collect one bulk sample each day. - Collect one seven (7) hour settled dust sample each day. b. Monitor transfer of Boke' bauxite from R15/R16 to R25: - Monitor three days, full shift exposure to respirable dust. Jobs to Monitor: (1) Dozer Operator (R15/R16). (2) Tunnel Conveyor Operator. (3) R-21 Crusher and Conveyor Operator. (4) R-25 Conveyor Tender - Collect one bulk sample each day. - Collect one seven (7) hour settled dust sample each day. 6. Heater Cleaners--Digestion Department Monitor four heater cleaners in R-42 one day for exposure to sulfuric acid mist; full shift monitoring; consider consecutive samples to determine peak exposures (i.e.,. adding acid to tanks). ^PC 004466 Page 2 7. Insulator Dust Exposure Monitoring--Maintenance Department Days 1 and 2: Large asbestos removal job(s) - Full shift monitoring, each crew member for exposure to asbestos. Days 3 and 4: Stripping insulation from loops and valves during overhaul of units R-30, R-31 R-32 or R-33. Full shift monitoring, each crew member for exposure to respirable dust. Days 5 and 6: Applying insulation in R-30, R-31, R-32 or R-33 with considerable block insulation cutting on ground level. Full shift monitoring, each crew member for exposure to respirable dust. 8. Pitch and Dust Monitoring--Paste Plant Days 1 and 2: Full shift monitoring; each Paste Plant employee for exposure to respirable dust. Days 3 and 4: Full shift monitoring; each Paste Plant employee for exposure to total dust, BSF, and PPOM; with separate and consecutive air samples to determine peak exposures (i.e., opening mixer doors, etc.) 9. Fluoride and Dust Monitoring--Aluminum Fluoride and Hydrate Plant For each job class, collect full shift exposure samples for total particulates, particulate fluoride and gaseous fluoride. Job Classes: a. Area Operator, Spar - 5 days b. Area Attendant - 5 days e. Area Operator, Aluminum Fluoride - S days d. Bagger - 3 days bagging aluminum fluoride 2 days bagging C-30 hydrate e. Packaging & Loading Fork Truck Operator - 3 days bagging aluminum fluoride 2 days bagging C-30 hydrate. 10. Fluoride and Dust Monitoring--Maintenance Department a. Overhauling kiln; full shift monitoring each member of crew for exposure to total particulates, particulate fluoride and gaseous fluoride. b. Changing aluminum fluoride or spar dust collector bags--full shift monitoring for total particulate and particulate fluoride; two full days of monitoring with separate and consecutive air samples to determine peak exposuree to dust. 11. Hoise Dosimeter Monitoring--Field Maintenance Crews a. Monitor full shift exposure to noise per schedule (attachment 3). APC 004468 Page 3 12. Noiae Dosimeter Monitoring--Mobile Equipment Operator a. Monitor full shift exposure to noise with Metrosonics dosimeters per schedule to be prepared. 13. Painter Exposure to Isocyanates--Maintenance Department Collect 15 minute air samples for isocyanates mist and vapor. Days 1 and 2: Painters applying polyurethane foam to mud tanks. One breathing cone sample, opening drums, assembling system. Four breathing zone samples, spraying polyurethane. Four area samples, at perimeter of roped area, downwind. Days 3 and 4: Painters applying selected polyurethane paints. One breathing zone samples, opening drums, assembling system. Four breathing zone samples, spraying paint. Four area samples, at perimeter of roped area, downwind. 14. Asbestos Dust Exposure--Garage and Diesel Repair Shop a. Brake Repair: Full shift monitoring mechanic, one day. b. Clutch Repair: Full shift monitoring mechanic, one day. 15. Machinist Dust Exposure--R-148 Machine Shop. Pump Repeir area Days 1 and 2: Monitor three Machinists full shift exposure to respirable dust. Days 3 and 4: Monitor three Machinists full shift exposure to asbestos; collect short term consecutive samples to determine peak exposures to asbestos. J. DAMIARO 1983 May 13 JD: vh AFC 004487 m IA m in CM PN o cc Uaa<r9n > 2 o CQ POINT COHFf OPERATIONS Work Group and S u p e rv is o r C a p ita l Area G erald C a rte r's F ie ld Pool W elders, 54E Bobbv K e lle v 's W elders. B13 C a rl M auer's W elders. B13 A rc h ie M a s s o le ttl's W elders. B131 Area I Sonny M a tu s ' W e ld e rs . R35 Area I I Benny C onrad. R136 "< f lATTACMENT -H ELD WELDERS MAINTENANCE DEP FUME EXPOSURE MONITORING SCH T o ta l W elders Day: CSI Ni mM m 1 1 Area I I I Ronnie S a u vre s. RIO m 4- CM cc in S 4 CM O</) .ec (A cc oo W OJ e001. G o oOJ 0e * k > k k01 <* K iln and C onverter O verhaul, Tenta- t l v e l v June 0 6 -0 7 ----------------------------------- APC 004468 x <- oo kaQ..4>J> a yM O' 0) M i" g aa>, S* 2s3 n mai Wu0 /> 0-0 *0) 4m* l +kJ ug CM In d ic a te I f W elder worked w ith a P ip e fitte r o r Maintenance Mechanic. m in in SO in CO arc s- a. a. - MsG. c Xa 4aJ 1>0011/ a c lxE q WUJ . Sri' | 3S 1 MCMI PM PM PM pM GO 1 -2 O ATTACHMENT #2 MACHINE SHOP PERSONAL MONITORING PLAN Sampling fumes: Full ahifc in breathing zone, cassette in helmet. Sampling gases: Grab samples with detector tubes for ozone (03), carbon monoxide (CO), nitric oxide (NO) and nitrogen dioxide (N02). Samples taken in front of helsat or on shoulder as close to breathing zone as possible. Monitoring notes; - Describe Process: Oxy-acetylene cutting, plasma are cutting, gouging electrode, shielded metal are welding (SMAV), metal inert gas (MIG), tungsten inert gas (TIG), submerged are welding, brazing, silver soldering, babbitting and metallizing. - Identity and quantity of rod or wire used. - Mixture of shielding gas. - Description of work joined or cut. - Location: description of ventilation. - Current(amps), arc voltage, AC/DC? - Respiratory protection used, if any. - Type of flux applied, if any. Metallizing - Pull shift personal monitoring of Machinist for total fumes and selected metals (i.e. nickel, chromium, cobalt and others). - In addition, spot cheeks with Drager tubes for CO, NO and N02. Monitoring: 2 days using Mateo 31C-HS powder. 2 days using Metcoloy #3 wire. 1 day using Metcoloy #2 wire. 1 day using Sprastael LS wire. 1 day using Sprababbitt A. - During each day include one area monitor in the nearby pump repair area. Shielded Metal Arc Welding E6010 Lincoln Electric Fleetweld 5P - 5 full ahift aamples for total fuaea with detector tube cbecka for 03, NO and N02. E7018 Lincoln Jet LH-70 or Airco E7018 - 3 full ahift aamplea for total fuaea, fluoridea (gaseous and particulate) with detector tube aeasureaants for 03, NO and N02. E7024 Lincoln Jetwold 1 - 5 full shift saaples for total fuswa with detector tube checks for 03, NO and N02. Airco 388 (Metal Overlay) - 1 full ahift saaple for total fuaaa, chroad.ua, molybdenua, and manganese with detector tube checks for 03, NO and N02. APC 004460 Inconel SMAW (Inco A, Huntington #132 and others) - 2 full shift samples for total fumes, nickel, chromium and manganese with detector tube checks for 03, NO and N02. - 2 full shift samples for hexavalent chromium. Stainless Steel SMAW (Teledyne McKay E309 and others) - 2 full shift samples for total fumes, nickel, chromium, manganese, with detector tube checks for 03, NO and N02. - 2 full shift samples for hexavalent chromium. Monel SMAW (Huntington #5, 190, 134 and 187) f - 2 full shift samples for total fuses, nickel, chromium, copper, and manganese with detector tube checks for 03, NO and N02. - 2 full shift samples for hexavalent chromium. Cutting Processes Manual oxy-acetylene metal cutting - 2 full shift samples for total fumes with detector tube checks for CO, NO and N02. Automatic oxy-acetylene metal cutting - 3 full shift samples for total fumes with cutting station area detector tube checks for CO, NO and N02. - Concurrent area monitoring near cutting station for total fumes. Plasma Are Cutting, no water table used. - 1 full shift sample for total fumes with cutting station area detector tube checks for CO, NO and N02. - Concurrent area monitoring for total fumes near cutting station. Arcair Gouging Electrode - 1 full shift semple for total fumes with detector tube measurements for CO, NO and N02. MIC Walding Steel with Airco A681 wire. - 3 full shift sables for total fumes with detector tube checks for 03, NO and N02. Aluminum - 3 foil shift samples for total fumes with detector tube checks for 03, NO and N02. TIC Walding Aluminum - 2 full shift samples for total fumes with detector tube checks for 03, NO and N02. Stainless or Inconel - 2 full shift samples for total fumes, chromium and nickel with detector tube checks for 03, NO and N02. APC 004470 Kiln Overlay Mr. Dale Stover to contact Joe Daaiano to observe this operatioo. Fluorides will evolve from this automatic submerged arc welding process. Submerged Arc Welding (Track machine in R-148 shop) 1 full shift sample for total fumes, manganese and fluorides with detector tube checks for 03, NO and N02. Braaing - 1 Full shift sample for total fumes, copper and zinc. Silver Soldering - 2 full shift samples for total fume, lead, tin and antimony. Check HC1 with detector tubes if Kester paste flu.z is used. Babbitting - 2 full shift samples for Velders and assistant Metal Workers for total fumes, lead, tin, antimony and copper. fpC 004471 s_ se LZ 61 SI 10 u) 10 sl 10 ATTACK 'IT #3 FIELD MAINTENANCE NOISE DO...-JETER MONITORING SCHEDULE ~l*r> Li 1 10 L 1 l 10 Job Group Total Empl. C a p ita l Area P ip e fitte rs In s t./E le c t. Technicians M a ln t. Mechanics P ainters F ie ld Uelders (B13) 24 VJ| uo n| 10 m| 10 10 Number o f Employees to M o n ito r Per Dav co|m r-l j co CM CO *0 0 r> CM p* H e lp e rs Process M alnt. Operators sr - s| SI 10 S ervices Area Day: 13 TIn s t./E le c t. Technicians 16 In s u la to rs - 17 PN p< i0 o* PN Co IA |CM co m| 10 O ro 10 m CM VUI e 0 u 2 i ** C 2 Carpenters OTTers Area I P lp e fltte rs In s t./E le c t. Technicians U e ld e rs Yard Laborers Area I I M a ln t. Mechanics P ip e fitte rs 23 pp p* pm sr * OO|I0 3 10 SI 10 CO CM S| | 2 0 23 ** CM|l0 CM| 3 e 0 u 1 h- U01 UJ J VeI ^jco coj rolCM H CO pp U e ld e rs Yard Laborers Area I I I M a ln t. Mechanics P ip e fitte rs no l ! 23 - Day: 30 10 132 CM co i - CO :m IcA 0 u e 5 U0 XI VI s* u 0 *-> tJ VeI i * Yard Laborers H e lp e rs 1 Garage Auto Mechanics 10 Day: 136 01 10 - m =i ! i sr pp 10 10 * CO CM 10 10 10 CO - CM CO 00 pOp CM pp vo 10 10 10 pO^ O O 10 10 co CM T o ta l E m ployees To M o n ito r 1 INDUSTRIAL HYGIENE MONITORING AND TRAINING MAINTENANCE Objectives: 1. To evaluate and manage employee exposures. 2. To Inform employees of pertinent health concerns and precautionary work practices. 1983 Third Quarter . Welders: . Evaluate welding fume exposures, all welding processes, and work groups. . Respirator training and fit testing. Insulators: Evaluate dust exposures during selected jobs; update of old data. Painters: Evaluate Isocyanate vapor levels during application of polyurethane foam; air sampling data needed to assess continued need for "cool hat" respiratory protection. 1983 Fourth Quarter Mobile Equipment Operators: Conduct thorough dosimeter evaluations of noise levels in vehicles; may recommend need for hearing protection or noise controls. Field Maintenance Work Groups: Conduct thorough dosimeter evaluations of noise exposures (179 samples); test results may suggest relaxation of rules and/or areas requiring hearing protection. 1984 . . Masons: Evaluate dust exposures during selected jobs. Area III: Conduct comprehensive urinary fluoride survey. Review health related Job Safety Analyses. Suggested employee training programs: 1. Hazardous Materials 2. Hearing Conservation J. DAMIANO:cmp 1983 June 20 APC 004473 INDUSTRIAL HYGIENE MONITORING AND TRAINING ALUMINA AND CHEMICALS POWERHOUSE Objectives: 1. To evaluate and manage employee exposures. 2. To inform employees of pertinent health concerns and precautionary work practices. 1983 Third Quarter . Review and update areas requiring hearing protection. 1983 Fourth Quarter . No activities 1984 . Suggested employee training programs: 1. Hazardous Materials 2. Hearing Conservation Review health related Job Safety Analyses. J. DAMIANO:cmp 1983 June 20 APC 004474 INDUSTRIAL HYGIENE MONITORING AND TRAINING OIL AND GAS DIVISION Objectives: 1. To evaluate and manage employee exposures. 2. To Inform employees of pertinent health concerns and precautionary work practices. 1983 Third and Fourth Quarters . No activities 1984 Suggested employee training (Lavaca Pipeline Company employees) programs: 1. Respiratory Protection for Asbestos 2. Hazardous Materials 3. Hearing Conservation . Review health related Job Safety Analyses. J. DAMIANOicmp 1983 June 20 APC 004475 INDUSTRIAL HYGIENE MONITORING AND TRAINING ALUMINA PLANT Objectives: 1.- To evaluate and manage employee exposures. 2. To Inform employees of pertinent health concerns and precautionary work practices. 1983 Third Quarter Clarification Department: Continue to evaluate mud tank at mosphere during use of Keebler Thompson descaling machine. Raw Materials Department: Evaluate dust exposure for each Job R-10 to R-25. Routine air sampling; update of old data. 1983 Fourth Quarter Digestion Department: Evaluate Heater Cleaner exposure to sulfuric acid mist. 1984 . Review and update areas requiring hearing protection. Review health related Job Safety Analyses. Suggested employee training program: 1. Hearing Conservation J. DAMIANO:cmp 1983 June 20 APC 004478 INDUSTRIAL HYGIENE MONITORING AND TRAINING ALUMINUM FLUORIDE AND HYDRATE PLANT Objectives: 1.- To evaluate and manage employee exposures. 2. To Inform employees of pertinent health concerns and precautionary work practices. 1983 Third Quarter Provide employee training program, "Hearing Conservation and Respiratory Protection"; eight sessions scheduled In August. 1983 Fourth Quarter . Monitor fluoride and dust exposure for each job class. Routine air sampling; update of old data. 1984 . . . . . Review and update areas requiring hearing protection. Provide comprehensive urinary fluoride survey In April. Review health related Job Safety Analyses. Participate In Project Safety Review, "Conversion of Cryolite Plant to C-30 Hydrate Production". Suggested employee training programs: 1. Hazardous Materials 2. Results of Urinary Fluoride Survey/Hearing Conservation J. DAMIANO:cmp 1983 June 20 APC004477 INDUSTRIAL HYGIENE MONITORING AND TRAINING PASTE PLANT Objectives: 1. To evaluate and manage employee exposures. 2. To Inform employees of pertinent health concerns and precautionary work practices. 1983 Third Quarter Monitor pitch and dust exposure for each job class. Routine air sampling; update of old data. 1983 Fourth Quarter . No activities 1984 . . . Review and update areas requiring hearing protection. Review health related Job Safety Analyses. Suggested employee training programs: 1. Coal Tar Pitch Volatiles 2. Hearing Conservation J. DAMIANOicmp 1983 June 20 AFC 004478 ASSET DETAIL RECORD CLASS. 342 NO. 3420*42 A ... *m*AT*tt;lJP^ Iff^YMIlV PURCli ORDER 7-43801# ttCJOSNCSHT.ACtfOfOOTfr 673 DATE LOCATIOR M ^Ayw*TifepM---i---'-. m--w-i-w--- st--jt REO. REPORT IMtai nUREMETATlOE 40 1/67 BUl. 341 3 5 ii _+L. nssss^~5&a HOP ORDER af^ir 2U INITJUJjmOR F00WMTWR - 460 . sFAaCJwUTI^EDr". * -lsSFs . pasto** invoice 91960 > ', . "J ~ ' fc'i 'i; .^4yiW * r-FMtNATCIvTReOQRmY*:tu<<. ' ---,,....J..,..r..--- -AUTHORCCATIO* ^ `imv&tdk &fer. .. * . . 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APC 004479 % -4 ' 9 POINT COMFORT OPERATIONS INDUSTRIAL HYGIENE MANUAL nm C.0 Ail gonfidcmt^ai 1983 NOVEMBER PREPARED BY: JOSEPH DAMIANO APC 004480 POINT COMFORT OPERATIONS INDUSTRIAL HYGIENE MANUAL 1.0 GENERAL - Industrial Hygiene Policy Industrial Hygiene Objectives 2.0 EXPOSURE EVALUATION - Urinary Fluoride Monitoring Confined Space Testing 3.0 HAZARDOUS MATERIALS CONTROL 4.0 HEALTH HAZARO CONTROL - Asbestos Control Protective Coveralls 5.0 RESPIRATORY PROTECTION - Jobs Requiring Respiratory Protection 6.0 HEARING CONSERVATION - Areas and Jobs Requtrtng Hearing Protection - Approved Hearing Protectors Alcoa Standard 30.3.3: "Preparation of Noise Control Worksheet" Alcoa Standard 30.3.2: "Sound Level Require ments for Purchase, Lease, or Rental of Vehicles" 7.0 RAOIATION CONTROL 8.0 HEAT STRESS 9.0 SANITATION APC 004481 -13- 4.0 HEALTH HAZARD CONTROL 4.1 General Engineering controls are preferred to work practice or personal protective equipment controls because they control at or near the problem source. Engineering controls Include: (1) technical Innovations."'substituting less hazardous processes, equipment, or materials for more hazardous ones; (2) Isolation of employees by means of automation, or employee/equipment enclosures; and (3) general and/or local exhaust ventilation. These controls must be properly selected, designed, and monitored to ensure acceptable performance. 4.2 Exhaust Ventilation Air contaminants can be effectively controlled by applying ex haust ventilation at a point as close to the emission source as possible. The effectiveness of exhaust systems should be In spected at Installation and periodically thereafter. This may be accomplished through the use of static pressure gauges or other Instrumentation. 4.3 Work Practice Controls Work Practice Controls are the procedures and precautions outlined In our Job Safety Analyses. A good example Is minimizing dust exposure by wetting down asbestos lagging on a steam pipe before removal. All new health related JSAs should be reviewed by the Industrial Hygienist. 4.4 Personal Hygiene Attention to personal hygiene Is always necessary. Consideration should be given to: . rules on eating, drinking, and smoking, carrying food or tobacco Into the work area, special shower or washing facilities, clothing and footwear. 4.5 Respiratory Protection In the control of harmful exposure to air contaminants, the use of respirators should be limited to: operations where engineering controls are not feasible or are In the process of implementation. AFC 004482 -14- maintenance. repair, and overhaul operations. emergencies; for example, fire fighting or response to a chlorine leak. Respirators are the least reliable method of controlling airborne exposures; they should be considered a last resort. The use of respirators is subject to the Respiratory Protection Program, Section 5.0. 4.6 Skin Protection Personal protective equipment Is often necessary to avoid skin con tact with harmful materials. This equipment can include slicker suits, gloves, coveralls, head covers, foot covers, or boots. 4.7 Protective Coveralls Protective coveralls are recommended for controlling exposures In certain maintenance related jobs. The Intent Is to minimize con tamination of personal garments In order to: reduce dustlna where dust Inhalation or Ingestion (subsequently, during a meal) Is a concern. Examples Include fluoride, asbestos, silica, and oxalate dust. avoid skin contact where adverse skin reactions or skin absorption Is a concern. Examples Include epoxy paints, coal tar pitch, and polychlorinated biphenyls (PCBs). avoid carrying a harmful material home. Examples include asbestos and PCBs. Protective coveralls are recomnended for the following jobs: 1. Servicing equipment heavily contaminated with fluorspar or aluminum fluoride dust; for example, air lance cleaning/ servicing dust collectors. Coveral1: Regu1ar Tyvek 2. Servicing equipment heavily contaminated with dr sodium oxalqte; for example, oxalate scaling In R-45. Coverall: Regular Tyvek Caution: Wet oxalate requires a slicker suit. 3. Servicing equipment heavily contaminated with lime dust; for example, servicing dust collectors. Coverall: Regular Tyvek 4. Servicing equipment heavily contaminated with coal tar pitch; for example, servicing dust collectors. Coverall: Regular Tyvek APC 004483 -15- 5. Removing, mixing, or applying insulations and refractories containing free silica or asbestos. (This includes much of the work done by Masons and Insulators.) Coverall: Regular Tyvek 6. Sandblasting Coverall: Regular Tyvek 7. Mixing and spraying paints, tar coatings, and polyurethane foam. Coverall: Regular Tyvek 8. Mixing and spraying insecticides and herbicides. Coverall: Polyethylene Coated Tyvek 9. Draining askarel (PCBs) from electrical equipment; servicing a PCB spill. Coverall: Saranex Laminated Tyvek 4.8 Asbestos Control All new pipe and vessel insulation Is asbestos free. A substantial portion of the equipment In the plant, however, Is lagged with old asbestos insulation. There Is a continuing need to remove this material for necessary equipment maintenance and repair. The following procedure must be followed by all employees involved In removing insulation: To avoid unexpected/unnecessary asbestos exposure, assume that all Insulation contains asbestos. A small sample of the Insulation should be submitted to the In dustrial Hygiene Department for microscopic analysis. Informa tion on whether or not the insulation contains asbestos will be provided. . Before demolition or Insulation removal Is started, all em ployees must be protected by approved respirators and proper protective clothing; l.e., disposable coveralls, gloves, head and foot covering, etc. . Signs should be posted cautioning other personnel of asbestos In the area. Signs can be obtained from the tool cribs. Red flagged barricade tape should be put up around areas being stripped. Tape should be put up approximately 10-15 ft upwind and 50 ft downwind. . Oampen insulation if conditions permit. APC 004484 -15- 5. Removing, mixing, or applying insulations and refractories containing free silica or asbestos. (This Includes much of the work done by Masons and Insulators.) Coverall: Regular Tyvek 6. Sandblasting Coverall: Regular Tyvek 7. Mixing and spraying paints, tar coatings, and polyurethane foam. Coverall: Regular Tyvek 8. Mixing and spraying Insecticides and herbicides. Coverall: Polyethylene Coated Tyvek 9. Draining askarel (PCBs) from electrical equipment; servicing a PCB spill. Coverall: Saranex Laminated Tyvek 4.8 Asbestos Control All new pipe and vessel insulation Is asbestos free. A substantial portion of the equipment in the plant, however. Is lagged with old asbestos Insulation. There Is a continuing need to remove this material for necessary equipment maintenance and repair. The following procedure must be followed by all employees Involved In removing Insulation: To avoid unexpected/unnecessary asbestos exposure, assume that all Insulation contains asbestos. A small sample of the Insulation should be submitted to the In dustrial Hygiene Department for microscopic analysis. Informa tion on whether or not the Insulation contains asbestos will be provided. Before demolition or Insulation removal Is started, all em ployees must be protected by approved respirators and proper protective clothing; l.e., disposable coveralls, gloves, head and foot covering, etc. Signs should be posted cautioning other personnel of asbestos In the area. Signs can be obtained from the tool cribs. Red flagged barricade tape should be put up around areas being stripped. Tape should be put up approximately 10-15 ft upwind and 50 ft downwind. Dampen Insulation If conditions permit. APC 004486 -16Place waste material in plastic bags, tie or seal bags, and dispose of materials In the special red Dumpsters. Follow good housekeeping practices. % APC 004486 -16Place waste material in plastic bags, tie or seal bags, and dispose of materials in the special red Dumpsters. L- Follow good housekeeping practices. APC 004487 -17- 5.0 RESPIRATORY PROTECTION 5.1 Objective Every feasible effort shall be made to provide a work environment free from hazardous concentrations of air contaminates or an oxygen deficiency. This shall be accomplished by material substitution, acceptable engineering controls, or work practice controls. When this objective cannot be met by the foregoing, then respiratory protection shall be provided In accord with the provisions of this program. 5.2 Responsibilities The Point Comfort Respiratory Protection Program Is administered by a "Program Director". This responsibility is assigned to the Senior Industrial Hygiene Technician, Leroy Wagner. Employees . Employees shall use respiratory protection In accord with applicable operating Instructions. . Employees shall report to the Medical Department any personal physical condition which may prevent the use of respiratory protection. Supervision . Supervision shall ensure that only those employees (1) trained in the proper use of respirators and (2) having passed qualitative fit tests where required engage In the operations requiring respi ratory protection (Including emergency operations). The operations requiring respiratory protection are listed In Section 5.4. Re fresher training shall be given every two years or more frequently If recomnended by the Program Director. . Supervision shall assure that employees use respiratory protection In accord with applicable operating Instructions. (See Section 5.3.) Industrial Hygiene Department . The Program Director shall specify the type of respirator to be used for each operation requiring respiratory protection. Section 5.4 Is the current list of operations requiring respiratory protec tion. . The Program Director Is responsible to train and fit test each em ployee using respiratory protection. The Program Director shall maintain the following records for each employee required to use respiratory protection: AFC 004488 -18- - outlines of training sessions attended, employee signatures, and dates - outcome of qualitative fit test (only required for negative pressure respirators) - other restrictions, such as eye glasses or beards. . The Program Director shall conduct frequent random inspections to assure that respirators are properly used, cleaned, and maintained. Medical Department . The Medical Department shall select the methods for, coordinate, and maintain surveillance of each employee. The medical sur veillance will help to determine through: - medical evaluations (Including a medical history, physical examination, and lung function tests) those employees for whom respiratory protective devices are contraindicated or who require restrictions. - biological monitoring those employees who, despite the pro visions of the program. Indicate excessive exposure. The Medical Department shall report to departmental supervision and the Program Director the names of employees with restrictions and employees disapproved from using respiratory protection. 5.3 Operating Instructions . A respirator shall not be worn If facial hair comes between the sealing periphery of the face piece and the face; or If facial hair Interferes with valve function. A person who has hair (stubble, sideburns, beard) which passes between the face and the sealing surface of the respirator face piece shall not be permitted to wear a respirator. - This rule applies to disposable dust masks, cartridge respi rators, gas masks, and the self-contained breathing apparatus; It does not apply to powered air purifying respirators (Racal Alrstream Helmet) or constant flow air line respirators (cool hats). . No employee requiring the use of glasses (corrective lenses) shall use a full face piece respirator unless the employee Is provided with special lenses for the face piece that will not break the facial seal or the employee can safely do his work temporarily without glasses. ARC 004480 -19- Employees shall Inspect their respirators prior to each use. Repairs shall only be made by employees trained in the use and care of respirators. Worn or broken parts shall be replaced from the manufacturer's parts list. Broken parts shall not be repaired. Substitution of parts from a different model respirator Invalidates approval of the device. Employees shall perform a "negative" and/or "positive" pressure fit test before each use of a respirator. Employees shall clean and sanitize their respirators at the end of each day's use. After sanitizing, each respirator shall be Inspected prior to storage. Respirators shall be stored In sealed plastic bags In a clean safe location with the face piece and exhalation valve resting in a normal position. Compressed Breathing Air: - In Point Comfort Operations, the concentration of carbon monoxide (CO) In the plant compressed air system Is not ex pected to exceed the OSHA standard, 20 ppm, at any time. The air compressors located In R-1I0, Building 51, and the Gas Plant are lubricated with ML-925, a triaryl phosphate. The flash point for this material is 4509F. Each compressor Is equipped with a temperature monitor and alarm sounding at 330F. Overheating air compressors will be taken out of service before the lubricant will decompose producing carbon monoxide. Refer to Alcoa Material Safety Data Sheet Number 114 on ML-925. - In order to ensure that accumulated lubricant and water con densate Is purged, employees shall open the valves on the air line manifolds, laterals, and water condensate traps In the area of work. - A standard compressed breathing air filtration train shall be used: 9 Air liquid trap--used and maintained per letter from L. W. Brast, 1982 November 30 9 Norgren particulate prefllter--check and clean prior to each day's use (Stores Stock No. 270-347-0018) 9 Wllkerson oil prefllter--change prior to each day's use (Stores Stock No. 690-821-0003) 9 Bullard organic vapor cartridge--change quarterly (Stores Stock No. 690-290-0531) - Oxygen shall not be used. APC 004490 -20- Respirators for Atmospheres Immediately Hazardous to Life or Health: - In emergency operations where the wearer could be overcome by a toxic or oxygen deficient atmosphere (l.e., fires) in the event of respirator failure, the emergency plan, operat ing procedure, or JSA shall specify at least one additional standby person with a suitable self-contained breathing apparatus (SCBA) at the nearest fresh air base for emergency rescue. 0 Communications (visual, voice, or signal line) should be maintained between both or all Individuals present. 0 Planning should be such that one Individual will be unaffected by any likely Incident and will have the proper rescue equipment to be able to assist the others If necessary. - Employees expected to use a self-contained breathing apparatus (l.e.. Fire Brigade members) shall maintain full expertise In the use of this equipment. Refresher training shall be con ducted by the Fire Srlgade Coordinator to maintain this expertise. - Respirators maintained for emergency use shall be Inspected monthly and after each use. The respirator shall be tagged with a record of Inspection dates and findings. APC 004401 -21- 5.4 Operations Requiring Respiratory Protection Operation Air Contaminant Respirator Stores Stock No. Point Comfort and Northern Railway Co. Spray cleaning locomo- Chlorinated Sol- tive generator vent Mixture None Neumin Oil A Gas Removing asbestos in- Asbestos Oust sulation 3M8710 220-683-0010 Alumina Plant - Raw Materials There are a variety of jobs In Raw Materials that may or may not require respiratory protection depending on the bauxite dust level. These jobs Include cleaning ship holds, air lance cleaning equipment, operating a dozer on bauxite piles, and tending conveyors. Respiratory protection should be selected based upon experience and advice from Industrial hygiene personnel. Damp Bauxite Not Necessary Moderately Dusty 3M8710 220-683-0010 Highly Dusty Racal AH-5 Alrstream Helmet or 3M Whltecap Cool Hat 220-536-0001 (Parts In Stores) 690-290-5006 (Parts In Stores) Alumina Plant - Clarification Servicing hydrochloric Hydrogen Chlo- 3M8725 acid spill ride Gas 220-679-8725 Alumina Plant - Precipitation Precipitator tank scaling, batch sections 2-4 Alumina Dust 3M8710 or Racal AH-5 Alrstream Helmet 220-683-0010 220-536-0001 Alumina Plant - Calcination Servicing dust collector Alumina Dust Racal AH-5 220-536-0001 Alrstream Helmet Refining Powerhouse None AFC 004488 -22- Aluminum Fluoride and Hydrate Plant Air lance cleaning dust collector from outside bag house Alumina, Flu orspar, and/or Aluminum Flu oride Oust 3M8710 Air lance cleaning equipment In general Alumina, Flu orspar, and/or Aluminum Flu oride Oust 3M8710 Cleaning spar tunnel Blowing convertor bed with air lance Fluorspar Dust Alumina, Flu orspar, and/or Aluminum Flu oride 3M8710 3M8710 Entering spar dryer Unloading spar rail car, opening hopper Fluorspar Oust Fluorspar Dust 3M8710 3M8710 Scrubber shut down, Hydrogen Flu general HF protection oride Gas 3M9906 Roddlng gyp cone Hydrogen Flu oride Gas 3M9906 Charging converter with fluoride and hydrate at startup Alumina and Aluminum Flu oride Oust 3M8710 Operating Tennent floor sweeper; dis charging collector bag Alumina and Aluminum Flu oride Oust 3M8710 Paste Plant Unloading coke to storage, B-52 Coke Dust 3M8710 Unloading ECC to storage, B-53 Coal Oust 3M8710 Cleaning mixer vent pipes and SC2 screws Coal Tar Pitch 3M8710 Volatiles Operating Kent mill, grinding ECC Coal Oust 3M8710 Working around ex truders Coal Tar Pitch 3M8710 Volatiles 220-683-0010 220-683-0010 220-683-0010 220-683-0010 220-683-0010 220-683-0010 220-679-9906 220-679-9906 220-683-0010 220-683-0010 220-683-0010 220-683-0010 220-683-0010 220-683-0010 220-683-0010 AFC 004403 -23- Servicing dust collectors Maintenance - General Servicing dust collectors Spraying herbicides and Insecticides Welding or air arc cutting In R-84 convertor Coke, Coal, and Coal Tar Pitch Varies with system Varies with product Iron, Nickel and Chromium Fumes Maintenance - Insulators Removing asbestos Insulation Asbestos Oust Spraying Seal Perm or Seal Coat Solvent Vapor and Asphalt Mist Maintenance - Painters Abrasive blasting Silica Oust Confined space paint- Solvent Vapor Ing and flberglasslng and/or Mist Mixing and spraying polyurethane paints and foam Insulation Isocyanates Racal AH-5 Airstream Helmet 220-536-0001 Racal AH-5 Airstream Helmet 220-536-0001 3M8725 Mask w/ 3M8752 Prefllter Prefllter Holder Racal AH-17 Airstream Helmet or Racal AH-17 Supplied Air Helmet 220-679-8725' 220-679-8752 220-679-8733 Special Order Special Order 3M8710 220-683-0010 MSA Comfo II w/GMC Cartridge and Mist Prefilter or 3M8725 Mask w/3M873 Pre filter Assembly Comfo II Facepiece: 220-681-0001 Sm 220-681-0002 Md 220-681-0003 Lg GMC Cartridge: 220-681-0005 MSA Prefllter (10 Sets/Box) 220-681-5667 MSA Prefllter Cover (2 Required) 220-681-8844 220-679-8725' 220-679-8732 Prefllter Holder 220-679-8733 3M WMtecap Cool Hat 3M Whltecap Cool Hat 3M Whltecap Cool Hat 690-290-5006 690-290-5006 690-290-5006 APC 004404 -24- Spray painting and flberglasslng Solvent Vapor and/or Mist Maintenance - Masons Same selection as Insulators spraying Seal Perm or Seal Coat Dumping and mixing dry Silica, Varies 3M8710 refractories with product 220-683-0010 Gunnlttlng refractory Silica, Varies 3M Whltecap with product Cool Hat 690-220-5006 Removing refractories, Silica, Varies 3M8710 general with product 220-683-0010 Removing refractories. Silica, Varies 3M Whltecap In confined space with product Cool Hat 690-220-5006 Grinding asbestos 1 Inoleum Asbestos Dust 3M8710; 220-683-0010 Fire Brlqade Fire Fighting Carbon Monoxide Scott Air Pak and Smoke (Pressure Demand) Located on fire trucks and In fire stations AFC 004406 DISTRIBUTION Mr. R. G. Sheppard Mr. J. I. Badgett Mr. H. E. Lewis Mr. J. G. Nelson Mr. K. W. Ryan Mr. E. J. Perez Mr. H. G. Elrod Mr. J. C. Mayfield Mr. J. H. Hutchins Mr. N. V. Lubbers Mr. J. E. McConnell Mr. H. M. Stallman Mr. G. Flores Mr. T. A. Innes Mr. N. E. Myers Mr. R. L. King Mr. D. D. Hinds Mr. R. E. Ustruck Mr. M. T. Simons Managers Mr. H. W. Cooper Mr. R. C. Flournoy Mr. W. H. Floyd Mr. D. R. Grundhoefer Mr. R. C. Hiserodt Mr. J. L. Minter Mr. J. L. Palmer Mr. J. Ramos Mr. R. R. Ripley AFC 004486 V r. 5. Removing, mixing, or applying Insulations and refractories containing free silica or asbestos. (This Includes much of the work done by Masons and Insulators.) Coverall: Regular Tyvek 6. Sandblasting Coverall: Regular Tyvek 7. Mixing and spraying paints, tar coatings, and polyurethane foam. Coverall: Regular Tyvek 8. Mixing arid spraying Insecticides and herbicides. Coverall: Polyethylene Coated Tyvek ) 9. Draining askarel (PCBs) from electrical equipment; servicing a PCB spill. Coverall: Saranex Laminated Tyvek 4.8 Asbestos Control All new pipe and vessel Insulation Is asbestos free. A substantialportion of the equipment In the plant, however, Is lagged with old asbestos Insulation. There Is a continuing need to remove this material for necessary equipment maintenance and repair. The following procedure must be followed by all employees Involved In removing Insulation: To avoid unexpected/unnecessary asbestos exposure, assume that all Insulation contains asbestos. A small sample of the Insulation should be submitted to the In dustrial Hygiene Department for microscopic analysis. Informa tion on whether or not the Insulation contains asbestos will be provided. Before demolition or Insulation removal Is started, all em ployees must be protected by approved respirators and proper protective clothing; l.e., disposable coveralls, gloves, head and foot covering, etc. . Signs should be posted cautioning other personnel of asbestos In the area. Signs can be obtained from the tool cribs. Red flagged barricade tape should be put up around areas being stripped. Tape should be put up approximately 10-15 ft upwind and 50 ft downwind. . Dampen Insulation If condl( '"""it. APC 004497 Place waste material In plastic bags, tie or seal bags, and dispose of materials In the special red Oumpsters. Follow good housekeeping practices. APC 004488 For Internal Company Use Only - Not To Be Distributed Outside The Company zo o n iIj ALCOA MATERIAL SAFETY DATA SHEET HAZARD__C__H_A__R_A-C--T--E--R--IS--T--I-C--S-------------------------------------------------- Mn 40 O Flammable O Combustible Toxic By: PRODUCT ASBESTOS Corrosive Explosive Q Ingestion Water Reactive G Radioactive Oxidizer G Chemically Reactive IS Inhalation Phone No. G Absorption Date: 81-10-21 Section I. MATERIAL DESCRIPTION Material Name: ASBESTOS Chemical Name & Formula: Chrysotile (H^Mg^Si^O^) and Amphibole Other Designation: Amosite Corporate Stock No.: Manufacturer: Section II. INGREDIENTS Chrysotile (Serpentine Asbestos) H^drated_Magnesium Silicate (95X of commercial asbestk is this type) % Amphibole Asbestos - Silicates of iron, calcium and magnesium with little water. Grey*-brovn color. Fibers have harsh, brittle acicular texture. Section III. PHYSICAL DATA Physical Form: Fibrous minerals Boiling Temp.: Freeze-Melt Temp.: Vapor Pressure: Evaporation Rate: Specific Gravity: Density: Solubility In H20": Color: Greyish-white fibers Odor: HAZARD DATA 8-hr. TWA* (OSHA) 2 Fibers/cc of air which are greater than 5 microns length. OSHA ceiling TLV: 10 Fibers per cc of air *0SHA has proposed this valtu be reduced to 0.5 fibers/cc. Section IV. FIRE AND EXPLOSION DATA Flashpoint - | Auto-Ignition Temp. Non-combus tlble | Flammability Limits In Air Lower | Upper Highly resistant to heat and fire. Section V. REACTIVITY DATA Chrysotile: Resistant to degradation by alkaline attack. Amosite: Heat resistance superior to chrysolite. Crocldolite (Blue): More resistant to acid attack than the above two. These asbestos materials are stable and relatively inert. In some situations, asbestos can maintain its integrity at temperatures up to 1700C (3092F). AFC 004480 No. 40 Asbestos_______ ___________________________ No.' 40 - Section Vi. HEALTH HAZARD INFORMATION | TLV TWA (8 HR) 2 fiber/cc 5 ym length The health hazard with asbestos arises from minute fibers which have been statistically shown to have produced lung cancer in asbestos workers after prolonged exposure. Asbestos tape, especially when unsized, will shed fibers on handling. Tape must be handled in such a way that the rate of air-borne fiber generation and the ventilation provided interact to keep the 8 hour TWA and ceiling concentrations below the established legal limit. Plant air sampling and analysis are required to insure conformance. Respiratory protection is required for conditions in which the 8 hour TWA or ceiling concentrations is exceeded. Good hygiene practices should be observed to avoid ingestion of asbestos fibers. Ingestion of asbestos may lead to cancer of the digestive tract. Suspected exposures should be reported to the Industrial Hygiene Department. Special concern exists during demolition and delagging work which may release large quantities of asbestos dust in the air. Asbestos is a progress disease which may develop fully in 7-9 years and cause death as early as 13 years after first exposure. Section VII. SMIL. LEAK & DISPOSAL PROCEDURES Wear dust mask, gloves and disposable paper suit when working in area having excessive asbestos dust concentration. Contact Industrial Hygiene group for air monitoring. Scrap asbestos should be disposed in sealed plastic bags in steel drums. Drums must be marked with special asbestos label and shipped .to approved disposal site. For clean-up use special vacuum sweeper to avoid air or water-borne hazards from minute asbestos fibers. Section VIII. SPECIAL PROTECTION INFORMATION General ventilation and local exhaust ventilation must be adequate to keep asbestos fiber concentrations in work place air below the TWA and ceiling TLV limits. Use NIOSH approved respiratory protection where the TLV concentration is or may be exceeded. The selection of appropriate respiratory protection (dust mask, self-contained breathing apparatus, supplied-air respirator, etc.) should be based on the actual or potential concentration present. Respiratory apparatus is required for worker protection under conditions in which the 8 hour TWA is exceeded. It is suggested that workers regularly handling large amounts of asbestos should frequently launder outer work clothing and should shower after work before changing into street clothing. Section tX. SPECIAL PRECAUTIONS & COMMENTS Dust mask and disposable coveralls must be worn when working with asbestos. All con taminated disposable clothing and asbestos containing wastes must be placed in sealed plastic bags and disposed in steel containers. Asbestos workers who are also smokers have a substantially Increased health risk from lung cancer from asbestos exposure as compared to non-smokers. D.O.T. Requirements ORM-C t 1 t - -____________ ______________________________________________ ' Section X. REFERENCES__________________________________________________________ _____________ ASTMNo.: D2100 Other: (l) Journal of Hazardous Material Chemical Abstracts No.: Vol. 3, No'. 2 (1979) 125-147 CMA Chemical Safety Data Sheet No.: Review of Asbestos Substitutes NFPA Guides No.: In Industrial Applications NSC Oata Sheets: (2) ACW Safety Data Sheet Supplier Product Literature: Other: Pg. 545 OSHA Manual 2206, Subpart Z 1910.1001 APC 004600 ><QC % So Kz i s a % T \B 5 5 -