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Recommended occupational health standard for manufacture of synthetic polymer from vinyl chloride
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  • Alternative Title:
    NIOSH recommended standard for occupational exposure to vinyl chloride
  • Description:
    Prefaced by one page entitled "NIOSH recommended standard for occupational exposure to vinyl chloride" consisting of "excerpts from a March 11, 1974, memorandum from Marcus M . Key, Director, National Institute for Occupational Safety and Health to John H. Slender, Assistant Secretary of Labor, Occupational Safety and Health Administration transmitting the NIOSH recommendations." "Background (events and toxicological findings) of the standard; scope and application; definitions of terms; requirements for regulated areas; routine operations; reactor and vessel entry; maintenance and decontamination; hygiene measures; signs; information and training; environmental monitoring and record keeping; reports; medical surveillance. Despite the fact that animal experiments have shown no liver tumors at atmospheric concentrations of 50 ppm, the concept of an allowable working level is rejected, since there is probably no threshold for carcinogenesis. Any person exposed to measurable concentrations of vinyl chloride should wear an air-supplied respirator, since chemical cartridge respirators do not afford adequate protection against vinyl chloride vapors." - NIOSHTIC-2 NIOSHTIC no. 00029788
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