1.1 This test method covers a procedure for the determina-tion of moisture absorption or desorption properties in the through-the-thickness direction for single-phase Fickian solid materials in flat or curved panel form. Also covered are procedures for conditioning test coupons prior to use in other test methods; either to an essentially moisture-free state, to equilibrium in a standard laboratory atmosphere environmen,or to equilibrium in a non-laboratory environment. Also included are procedures for determining the moisture loss during elevated temperature testing, as well as moisture loss resulting from thermal exposure after removal from the con-ditioning environment, such as during strain gauge bonding. While intended primarily for laminated polymer matrix com-posite materials, these procedures are also applicable to other materials that satisfy the assumptions of 1.2.
