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ANSI Approves Glycol and Glycerin Fog Standard
2003-05-12

On 12 May 2003, ANSI's Board of Standards Review approved ANSI E1.5-2003, Entertainment Technology - Theatrical Fog made with Aqueous Solutions of Di- and Trihydric Alcohols.

This standard is now referenced in ESTA's "A Test Is Worth a Thousand Words" fog testing program, and is available for free download.

The new standard specifies the components of glycol and glycerin fog and the ceiling and the time-weighted-average (TWA) exposure limits for the fogs. The ceiling limits are consistent with the ceiling limits that have been specified in Actors' Equity contracts, which are rationally based on scientific data, but the standard also limits the TWA exposure at levels below the ceiling limits for actors, other personnel, and the public to keep those long-term exposures in the range of TWA levels that have been shown to acceptable. The standard specifies the glycols that can be used in a conforming fog to proscribe irritating, common industrial glycols and ensure that only those glycols for which there is ample, public documentation of their benignity are used.

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