HAP solvent
HAP solvent means a solvent that contains 10 percent or more of any one HAP, as listed in section 112 of the Clean Air Act, or any combination of HAP that is added to a solvent mixer. Examples include hexane, toluene, and trichloroethylene.
Source
40 CFR § 63.9565
Scoping language
Terms used in this subpart are defined in the Clean Air Act, in 63.2, and in this section as follows: