Document ykYbbkByzbzmY02OrQBbLQDpE

rfmfii-F^I Nil fiifft I.--- fiaiuMIbi 6* APRIL 1*73 This N P MEASUREMENT AND CONTROL OP ASBESTOS DUST EXPOSURE S4T 3 *2 Mrhantirs ntnr-typt rasptrster* re required S4 Mndlcnl sxaminattons, controls, and records when the TVA or ceiling concentration* are reasonably relative to asbestos dust exposure are directed by the expected to exceed no more than 10 time* the limits in Employee Relations Department, Medical Division section 3. U.1 Filters dull meet Bareas of Mines Schedule 7. SAMPUNG 21B or NIOSH/Bureeu of Mines Certification TC-21-C. Manufacturer's recomnsendatiom moat be followed' tar their application and maintenance. Such filters diouid not he med where the oxygen fall* below 19J> percent. 7.1 Monitoring is required where employees are ex posed to aabeatos dust to determine the employee's expostme. 5.3 Pawnrod (Star-typo mopirNon are requited when the TWA or ceiling concentrations are reasonably ex pected to exceed 10 tunes, bat not 100 tones, the limits in section 3- 7.1.1 Sampling of each operation must be taken in a frequency and pattern to represent accurately the em ployee's exposure over his work period. If results indicate a level of aabeatos dust in excess of the limit, the operation shall be reviewed to reduce exposure, tee 4.1. U.1 These fibers are seldom used on Company and reaasnpWd The initial sampling program must deter plants and those of 5-4 are substituted. mine the 3-hour time weighted average. Intervals between L4 Abnoaphoro Replying aspirators (Type "C" sup plied air or self-contained) are required when the TWA or ceiling concentrations are reasonably expected to ex ceed 100 times the limits in section 3. Also, they are mplrs shall not exceed six (6) months. 7,2 Equipment. Samples may be taken with a portable battery-operated air sampler attached to an employee's belt or placed in the work area. required for the spaying of asbestos. For removal or demolition, see 4-5. CAUTION: Unless specifically approved for use in hazardous atmospheres, air sampler* shall not be med in M.1 Filters shall meet Bureau of Mines Schethile hazardous areas, a* defined in DE1D. without a permit to 19B. I me a spark-producing device. U Rniplrmry Equlpwni Uss and Tssttng. A respirator program in accordance with the requiremenu 7X1 Pump* raoowntamdad. of ANSI ZS8.2 Practices for Respiratory Protection shall be established. 5X1 Each employee who may me a respirator shall be instructed in its me and in testing it for proper fit. He shall tat it Car proper fit prior to eaq^hse. Bcndii Model 015 or Mieronaire, available from: Bendix Corp Environmrntal Science Dtv 1400 Taylor Ave Baltimore. MD 21204 r 5X2 Reversion risall be cleaned and disinfected or, - regularly. Those issued Cor thp^tcimive me of one worker should be cleaned at leak after each day's work. MSA Gravimetric, available from: Mine Safety Appliances Co 5. HYGCNE 400 Penn Center Blvd Pittsburgh. PA 15235 5.1 A change room and dupBeata lockers must be provided for employees exposed to concentrations which Both units shall include pump, battery, and battery charger. Carrying case is optional. Cyclone is not 5 exceed either the TWA or the ceiling limit in section 3. This is to prevent contamination of employees' street required. > LU Q clothes from their work ciotha. L2 Special Clothtog shall be provided for employees exposed to concentrations which exceed the ceiling limit in section 3, and for those employee* engaged in the spraying of asbestos. For ranoral or demolition, aee 4.5. 722 Fitter cassettes sre available from: Millipote Corporation Bedford. MA 01730 Specify. DU 062128 IJ Food, gum, tobacco, or other material placed in the mouth shall not be kept or conatxned in work areas where asbestos is being handled or fabricated. Miilipore No. MAWP-037-AO filter. 0J micron pore (white, nongridded) (Nongridded are preferred but gridded are ivailable.) -+ Portion* pnntad in rod moot OSHA ropulotiont, Soction 1910.1001 (fortnoriy ,93o DW MS390,