This test discusses low pressure testing at room temperature. The purpose of this test is to determine the ability of components, equipment or other products to be stored, transported and used under low pressure conditions. Note: When the combined effects of high temperature or low temperature and low air pressure have a significant impact on the force exerted on the product or the failure mechanism of the product, the products stored, transported and used under this combined effect should be tested according to the following standards: SJ/Z 9001.8 (IEC 68-2-40) Basic Environmental Test Procedures Part 2 Various Tests--Test Z/AM: Low Temperature (Cold)/Low Pressure Comprehensive Test. SJ/Z 9001.9 (IEC68-2-41) Basic Environmental Test Procedures Part 2 Various Tests--Test Z/BM: High Temperature (Dry Heat)/Low Pressure Comprehensive Test.