Insulation panels as specified herein are intended for the following applications.

Type I material is a general purpose insulation for thermal and acoustical applications designed to be used as a direct substitute for fibrous glass insulation on an inch for inch thickness basis. It is intended as an alternative for MIL-I-742, type II and MIL-I-22023, type I and type II (all classes).

Type II, class I material is intended for use as a thermal insulation substitute for MIL-I-742, type I. Type II, class 1 is not intended for use as an acoustic material.

Type II, class 2 is designated for use as a light-weight acoustical absorption material for overheads (exclusive of suspended ceiling system panels) and bulkheads in dry, clean shipboard spaces where moisture and water vapor barriers are not required. This material should not be used in areas such as main or auxiliary machinery rooms, galleys, or showers where moisture, petroleum products, or noxious contaminants may be absorbed by the insulation.