This standard describes the composition of theatrical fogs or artificial mists that are not likely to be harmful to otherwise healthy performers, technicians, or audience members of normal working age, which is 18 to 64 years of age, inclusive. This standard makes no statement about appropriate exposure limits for theatrical fogs or artificial mists with other populations, and no limits, higher, lower, or the same as these limits, forother populations should be inferred from it.This standard is limited to those fogs and mists made from a solution of water and one or more dihydric or trihydric alcohols. There fogs are commonly called "glycol fogs," although only those that use dihydric alcohols are technically made with glycol.