ASTM D 5664—08 Test Methods for Evaluating the Effects of Fireretardant Treatment and Elevated Temperatures on Strength Properties of Fire-retardant-treated Lumber (PDF Download)

1.1 This test method covers procedures for obtaining data to assess the initial adjustments to allowable design stresses for lumber treated with candidate commercial fire-retardant (FR) formulations and further procedures for obtaining data to assess the effect of extended exposure to elevated temperature of 66 ± 2°C (150 ± 4°F).

1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

This standard is referenced in the 2012 International Building Code® and the International Residential Code®.