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ceiling limitJoe Segen2016-12-29T09:31:04+00:00
OCCUPATIONAL MEDICINE, TOXICOLOGY
The concentration of a substance, defined by OSHA1 and NIOSH2, that should not be exceeded for any (emphasis added) period of time, as it is regarded as immediately dangerous to life or health.
1Occupational Safety and Health Administration 2National Institute for Occupational Safety and Health
Synonym Short-term exposure limit