Standard No.:	GB/T 18443.4-2010
English Name:	Testing method of performance for vacuum insulation cryogenic equipment—Part 4:Leak-outgassing rate measurement
Chinese Name:	真空绝热深冷设备性能试验方法 第4部分：漏放气速率测量
Chinese Classification:	J74    Pressure vessel
Professional Classification:	GB    National Standard
Issued by:	AQSIQ; SAC
Issued on:	2010-9-26
Implemented on:	2011-2-1
Status:	valid
Superseding:	GB/T 18443.4-2001 Testing method of cryo-insulation pressure vessels-Leak and outgassing rate measurement
Language:	English
File Format:	PDF
Word Count:	3000 words
Price(USD):	60.0
Delivery:	via email in 1 business day

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-outgassing rate measurement of the interspace of the vacuum insulation cryogenic equipment. This part is applicable to the leak-outgassing rate measurement of the interspace of the vacuum insulation cryogenic equipment such as the vacuum insulation cryogenic pressure vessels, vacuum insulation cryogenic welding cylinders, vacuum insulation pipe and its pipe fitting 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.