ASTM D5516 暴露在高温下的阻燃处理软木胶合板弯曲性能测试方法标准
日期:2012-02-07 19:11
he cumulative effects of the elevated temperatures and humidity exposures expected to be encountered in service should be taken into account when recommended roof sheathing spans are established.
1. Scope
1.1 This test method is designed to determine the effect of exposure to high temperatures and humidities on the flexure properties of fire-retardant treated softwood plywood. In this test method, plywood is exposed to a temperature of 77C (170F).
1.2 The purpose of the test method is to compar
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