This part of GB/T 18443 specifies the requirements for testing principle and method, testing device, equipment and instrument, testing conditions and testing preparation, procedure, data processing, testing record and testing report of the interspaced vacuum degree measurement of vacuum insulation cryogenic equipment.
This part is applicable to the measurement of the interspaced vacuum degree of vacuum insulation cryogenic equipment such as vacuum insulation cryogenic pressure vessels, vacuum insulation cryogenic welding cylinders and vacuum insulation pipe and its pipe fittings except those for storing and transporting liquid hydrogen medium, which other equipment may be referred to.
