1 Scope
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 leak rate measurement of vacuum insulation cryogenic equipment.
This part is applicable to the measurement of leak rate 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.
2 Normative References
The following standards contain provisions which, through reference in this part of GB/T 18443, constitute provisions of this part. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this part are encouraged to study whether the latest edition of these documents is applicable. For undated references, the latest edition of the normative document is applicable to this part.
