Document pmEONkDRJD4Eoxp6pa9yVEnmD

84T MEASUREMENT AND CC4TROL I OP A4SEST08 DUST EXPOSURE1 PLAINTIFF'S EXHIBIT TtVP-1611 APRIL 1*78 TM Pag* Rav Sept 1*77 The following adapter it between (fee ti#it Catalog No. *960-045 tyring* needle adapter to `/winch A. H. Tbanit Co Philadelphia, PA 19105 74 Prsaudura. Haakell Laboratory Field Serrioet Group dtall be eontaeted for pacific recommendations at to duration. frequency, aad technique for ***"pi;"g prior to embarking on a smnpling program. 74.1 Flow through the pomp thouId be calibrated, with the (titer in line for each pump. 744 Pamoiwi lampbn*. Filter holder it clipped to lapel or thirt packet m date to breathing aone at poatible. Filter dtall hare face horiaontal or dightly downward, nerer up. 744 Envtronmantal ImpHng. Theae templet are taken from a fixed location to give a general pattern of expoture in a work position or area. Filter it placed at dote to breathing aone representative of the work area. 74 Analytic. Completed iampin (exposed filter*) are placed in t mailing tube, sealed, and tent to a qualified laboratory with two copies of the sampling record. 7 4.1 It it recommended that an unexpoaed filter be included with each batch of samples for reference. 744 All determinations shall be mode fay the membrane filter method at 400-450X (magnifica tion) (4mm objective) with phase contrast illumination. 744 Qualified Laboratories G. W. Hiddemen E. 1. du Pom de Nemours A Co Marshall Laboratory 3500 Grays Ferry Avenue Philadelphia. PA 19146 Graduate School of Public Health University of Pittsburgh Pittsburgh, PA 15213 W. A. Burgess 38 Fox Hill Street Westwood. MA 02090 74 Record Kouping. Records of personnel and en vironmental monitoring shall be maintained for at least twenty (20) yean and made available upon the request of authorized representatives of OSHA and NIOSH (National Institute of Occupational Safety and Health). 7.6 Caution Signs and Lab*la 7.6.1 Caution signs conforming to Figure 1 shall be posted si all approaches to areas where asbestos concentrations may be above permissible exposure limits. They ahdl be placed at a sufficient distance to permit as employee to read the signs and take necessary precautions before entering the area. 744 Caution labels conforming to Figure 2 shall be used to identify containers of raw materials, scrap, waste, other products containing asbestos, and asbestos contaminated clothing. 744 Identification labels are snggested for aabeatos containing manlotion, me SN218P. 8. ERA ASSESTOS EMMiStON REGULATIONS .< 8.1 Application. Regulations also have been promul gated by the Environmental Protection Agency (EPA).* Them apply to friable aabmtos materials which contain more than one percent asbestos by weight and which can be cnanbled. pulverised, or reduced to powder by hand pressure when dry. Du Pont operations within this criterion normally will be limited to demolition or renovation involving asbestos insulation. 8.1.1 When demolition or renovation amounts to more than the quantities listed below, a detailed report shall be filed with EPA prior to removal. The removal operation shall follow the other requirements of this ttan* dard. particularly 44 and 4.6. . 260 lineal feet (80 meters) of asbestos con taining pipe inaulation. or b. 160 sq ft (15 sq meters) of asbestos containing insulation on ducts, boilers, tanks, or structural members 8.14 The requirements of this standard should more than meet the additional precautions specified by EPA regarding wetting, containerizing, disposal, and exhausting. The latter are aimed at preventing visible emission* during the operation and are equal to or less restrictive than those of this standard (3.1). 8.14 When demolition or renovation amounts to leas than 8.1.1 is) or (b) a simplified report shall be filed with the EPA prior to removal. The removal operation also shall follow the other requirements of this standard, particularly 44 and 4.6. (EPA handlii^ restrictions do not apply to these quantities.) 84 For specific report and compliance requirements, refer to the EPA regulations*. Local or state regulations also should be reviewed since they may be more restrictive. * National Emission Stsndsra Iof rsnesirn Tins 40 CoO* ol Fsosrsl Regulations. Su&osn B 61 20 through 61 25 (40 CFB 61 20-61 251 Originally published in Federal Register 48212. Octoeer 14 1S75) Portions printed in rsa meet OSHA regulations Section 1910 1001 (tormeny 93ai DUP 1153908 DU 062135