View all text of Subpart 32.56 [§ 32.56-1 - § 32.56-60]
§ 32.56-40 - Category A machinery spaces: Insulation—T/ALL.
Structural insulation within category A machinery spaces must have a barrier such as metal foil, sheet metal, cementitious coating, or other vapor barrier so that the surface of that insulation is impervious to oil and oil vapors.