指定两种蒸汽疏水阀的测试方法。这些测试的目的是确定通过疏水阀损失的活蒸汽量（如果有的话）。没有测量陷阱损失的总热能。这种总的热损失将包括可以单独建立的辐射和对流组件。图1显示了测试方法A的测试布置，图2显示了测试方法B的测试布置

Specifies two test methods for steam traps. The object of these tests is to determine the amount of live steam, if any, that is lost through the steam trap. There is no measurement of the total heat energy lost by the trap. Such total heat loss would include radiation and convection components which can be established separately. Figure 1 shows the test arrangement for test method A, and figure 2 shows the test arrangement for test method B.