ABSTRACT
This chapter discusses the regulations, standards, guidelines, and criteria that are referred to when deciding whether to implement an industrial hygiene control over an airborne chemical. The criteria used to set exposure limits will then be categorized as being based on either health, safety, or good work practices. It is intended as a review of occupational exposure limits to airborne chemicals. The broad goals of most chemical exposure limits is lofty and therefore often difficult to achieve in practice given the paucity of objective quantitative information available on the health effects in humans potentially or actually caused by individual chemicals. It summarizes and compares the quantitative differences in concentrations at which exposure to chemicals should be controlled based on either health, safety, or oxygen deficiency. The chapter introduces the ANSI/AIHA Z9.1 standard that applies to open-surface tanks.
