指定实验室测试方法。本试验旨在测试标准条件下的密封性、隔热性和机械强度，以及在清扫过程中可能出现的处理耐久性。本试验提供了一组规定温度和流量条件下的性能信息，但未提供适用于特定加热设备的信息。

Specifies a laboratory method of test. This test is designed to test for tightness, heat insulation and mechanical strength under standard conditions and for durability against treatment such as may occur during sweeping. This test provides information on the performance under a set of prescribed temperatur and flow rate conditions, but does not provide information appropriate to specific heating appliances.