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See Chinese contents: GB/T 18443.6-2010 GB/T 18443.6-2010: Testing method of performance for vacuum insulation cryogenic equipment -- Part 6: Heat-leak rate measurement
This Part of GB/T 18443 specifies test principles and methods, test devices, equipment and instruments, test conditions and test preparation, test procedures, data processing and test record and test report for the heat-leak rate measurement of vacuum insulation cryogenic equipment. This part applies to the heat-leak rate measurement of vacuum insulation cryogenic pressure vessels, vacuum insulation cryogenic welded gas cylinders, vacuum insulation pipes and their pipe fittings, except the liquid hydrogen storing and transporting equipment. Other equipment can refer to this document for the implementation. The flowmeter measurement method is suitable for the heat-leak rate measurement of vacuum insulation cryogenic pressure vessels, vacuum insulation cryogenic welding gas cylinders and other vacuum insulation cryogenic equipment. The surface temperature measurement method is suitable for the heat-leak rate measurement of vacuum insulation pipes and their fittings.
