ASTM E547 PDF

Dokus The most essential steps in running the E test, once the wall assembly is attached and sealed to the ASTM E test wall, are listed below. In applying the results of tests by this test method, note that the performance of a wall or its components, or both, may be a function of proper installation and adjustment. This test method does not identify unobservable liquid water which may penetrate into the test specimen. For a negative pressure system, the water-spray grid would be located outside the chamber and the air supply would asmt replaced by an air-exhaust system. The testing axtm differential is usually determined by the testing xstm. Water that penetrates the assembly, but does not result in a failure as defined herein, may have adverse effects on the performance of contained materials such as sealants and insulating or laminated glass.

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Document Center Inc. Water that penetrates the assembly, but does not result in a failure as defined herein, may have adverse effects on the performance of contained materials such as sealants and insulating or laminated glass.

This test method does not address these issues. The inch-pound equivalents of SI units may be approximate. 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. For specific hazard statements see 7. Significance and Use This test method is a standard procedure for determining the resistance to water penetration under cyclic static air pressure differences.

The air-pressure differences acting across a building envelope vary greatly. These factors should be fully considered prior to specifying the test pressure difference to be used. Note 1—In applying the results of tests by this test method, note that the performance of a wall or its components, or both, may be a function of proper installation and adjustment.

In service, the performance will also depend on the rigidity of supporting construction and on the resistance of components to deterioration by various causes, vibration, thermal expansion and contraction, etc. It is difficult to simulate the identical complex wetting conditions that can be encountered in service, with large wind-blown water drops, increasing water drop impact pressures with increasing wind velocity, and lateral or upward moving air and water.

Some designs are more sensitive than others to this upward moving water. Note 2—This test method does not identify unobservable liquid water which may penetrate into the test specimen. Facades ;

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ASTM E547 - 00(2016)

More E The air-pressure differences acting across a building envelope vary greatly. These factors should be fully considered prior to specifying the test pressure difference to be used. In service, the performance will also depend on the rigidity of supporting construction and on the resistance of components to deterioration by various causes, vibration, thermal expansion and contraction, etc.

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ASTM E547 PDF

This testing standard describes the procedures to determine the water penetration resistance of windows, curtain walls, skylights, and doors when water is applied using a calibrated spray apparatus while simultaneously applying uniform or cyclic static pressure to opposite sides of the test specimen. Uniform pressure means consistent static pressure is applied during a period of 15 minutes. Cyclic pressure means the static pressure is cycled, five minutes on, one minute off, for three cycles. In no case, shall the total time be less than 15 minutes unless a failure occurs.

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A number in parentheses indicates the year of last reapproval. Water that penetrates the assembly,but does not result in a failure as defined herein, may haveadverse effects on the performance of contained materials suchas sealants and insulating or laminated glass. This test methoddoes not address these issues. The values given in parentheses are mathematicalconversions to inch-pound units that are provided for informa-tion only and are not considered standard. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.

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