GB/T 18443.4-2010: Testing method of performance for vacuum insulation cryogenic equipment - Part 4: Leak-outgassing rate measurement

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Scope

This part of GB/T 18443 specifies the requirements of the test principle and method,
test devices, equipment and instruments, test conditions and test preparations, test
procedures, data processing, test records, and test reports for the measurement of
interspace leak-outgassing rate of vacuum insulated cryogenic equipment.
This part applies to the measurement of interspace leak-outgassing rate of vacuum
insulated cryogenic equipment, such as vacuum insulated cryogenic pressure vessels
except for the storage and transportation of liquid hydrogen medium, vacuum insulated
cryogenic welded gas cylinders, vacuum insulated pipes and pipe fittings; the
measurement of other equipment can be implemented by reference.

Basic Data

Standard ID	GB/T 18443.4-2010 (GB/T18443.4-2010)
Description (Translated English)	Testing method of performance for vacuum insulation cryogenic equipment - Part 4: Leak-outgassing rate measurement
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	J74
Classification of International Standard	23.020
Word Count Estimation	10,125
Date of Issue	2010-09-26
Date of Implementation	2011-02-01
Older Standard (superseded by this standard)	GB/T 18443.4-2001
Quoted Standard	GB/T 18443.1-2010; GB/T 18443.2; GB/T 18443.3
Regulation (derived from)	National Standard Approval Announcement 2010 No.6 (Total No.161)
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard specifies the vacuum insulated cryogenic equipment mezzanine principles and methods of leak test gas discharge rate measurements, equipment and instruments, , test conditions and test preparation, test equipment test procedure, data processing and test records and test reporting requirements. This section applies to liquid hydrogen storage medium other than vacuum insulated cryogenic pressure vessel, vacuum insulated cryogenic welding cylinders, vacuum insulated pipe and pipe fittings, such as vacuum insulated cryogenic equipment Sandwich leak and outgassing rate measurements, other devices can be implementation.