GB/T 18442.6-2019: Static vacuum insulated cryogenic pressure vessels - Part 6: Safety protection

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Scope

This part of GB/T 18442 specifies the selection principles and setting
requirements of safety accessories, gauges, handling accessories used in
static vacuum insulated cryogenic pressure vessels (hereinafter referred to as
"cryogenic vessels"), as well as the calculation of the safety discharge volume
of tank, the calculation of the discharge capacity of the overpressure relief
device.
This part applies to cryogenic vessels that meet the following conditions at the
same time:
a) The working pressure of the inner vessel is not less than 0.1 MPa;
b) The geometric volume is not less than 1 m3;
c) The insulation method is vacuum powder insulation, vacuum composite
insulation or high vacuum multilayer insulation;
d) The storage medium is a refrigerated liquefied gas with a standard boiling
point not lower than -196 °C.
This part does not apply to cryogenic vessels in the following ranges:
a) The inner vessel and outer shell materials are non-ferrous or non-metallic;
b) Spherical structure;
c) Stacked and insulated;
d) Mobile;
e) Store frozen liquefied gas medium with standard boiling point lower than
-196 °C;
f) The storage medium is a toxic gas according to GB 12268;
g) Special requirements for national defense and military equipment.

Basic Data

Standard ID	GB/T 18442.6-2019 (GB/T18442.6-2019)
Description (Translated English)	Static vacuum insulated cryogenic pressure vessels - Part 6: Safety protection
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	J76
Classification of International Standard	23.020.40
Word Count Estimation	18,149
Date of Issue	2019-12-31
Date of Implementation	2019-12-31
Older Standard (superseded by this standard)	GB/T 18442.6-2011
Quoted Standard	GB/T 150.1; GB/T 150.2; GB/T 150.3; GB/T 150.4; GB/T 567.1; GB/T 567.2; GB/T 567.3; GB/T 567.4; GB/T 18442.1; GB/T 18442.3; GB/T 18442.5; GB/T 24918; GB/T 29026; JB/T 6804; TSG 21
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration
Summary	This standard specifies the selection principles and setting requirements of safety accessories, instruments, and loading and unloading accessories used in fixed vacuum insulated cryogenic pressure vessels (hereinafter referred to as "cryogenic vessels"), as well as the safe discharge capacity of the tank and the discharge capacity of the overpressure relief device. calculation. This standard applies to cryogenic vessels that simultaneously meet the following conditions: a) The working pressure of the inner vessel is not less than 0.1 MPa; b) The geometric volume is not less than 1 m^(3); c) The thermal insulation method is vacuum powder thermal insulation, vacuum composite thermal insulation or High vacuum multi-layer insulation; d) The storage medium is a refrigerated liquefied gas with a standard boiling point not lower than -196 ��C. This standard does not apply to the following scope of cryogenic containers: a) inner packaging and outer shell materials are non-ferrous metal or non-metallic; b) spherical structure; c) accumulation insulation