“Acute” means a type of exposure that is considered as a one-time or short-term exposure, with a typical duration of less than or equal to 24 hours. This type of exposure could also consist of multiple exposures or a continuous exposure over several, but no more than 14, days.

Source. #6328, INTERIM, eff 8-24-96, EXPIRED: 12-22-96 New. #6468-A, eff 3-5-97; renumbered by #8256 (from Env-A 101.07); ss by #13105, eff 9-25-20 (formerly Env-A 101.06) (see Revision Note #4 at chapter heading for Env-A 100)