ASTM E1725电气系统元件耐火阻挡层系统耐火试验标准试验方法
日期:2012-02-08 11:59
t test conditions are substituted or the end-use conditions are changed, it is not always possible by or from these test methods to predict changes in the fire test response characteristics measured. Therefore, the results are valid only for the fire test exposure conditions described in these procedures.
These test methods provide a measurement of the transmission of heat to the electrical system components within the barrier system.
These test methods provide qualification of a fireresistive b
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