MECHANICAL TESTING LABORATORY

Due to the very large number of tests offered, descriptions of those most commonly requested have been gathered into the following groups:

ASTM D5229 – Moisture Absorption Properties and Equilibrium Conditioning of Polymer Matrix Composite Materials

To request a quotation for any test email info@trl.com for a prompt reply

ASTM D5229 testing provides a variety of procedures in order to determine the moisture absorption or disorption properties. This is a gravimetric test that monitors the change in moisture content over time.

There are several procedures that are discussed throughout this method. Procedure A covers the determination of the two Fickian moisture diffusion material properties, the moisture diffusitivity constant and moisture equilibrium content. This procedure will result in the diffusivity constant, Dz and the moisture equilibrium content, Mm at the given moisture exposure level and temperature. Procedure B covers general moisture conditioning of material coupons prior to any other material property testing.

Procedure C covers the conditioning of material coupons to a nominal relative humidity level of 50% prior to any other material property testing.

Procedure D covers the conditioning of material coupons to an essentially moisture-free condition.

Please email info@trl.com or call (304) 547-5800 for information regarding any ASTM D5229 questions you may have.

Reference: ASTM D5229 – Standard Test Method for Moisture Absorption Properties and Equilibrium Conditioning of Polymer Matrix Composite Material

Reference: MIL-B-131 Barrier Materials, Watervaporproof, Greaseproof, Flexible, Heat-Sealable