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GB/T 31481-2015   Guidance for gas/materials compatibility of cryogenic vessels (English Version)
Standard No.: GB/T 31481-2015 Status:valid remind me the status change

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Language:English File Format:PDF
Word Count: 8500 words Price(USD):250.0 remind me the price change

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Implemented on:2015-9-1 Delivery: via email in 1 business day
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Standard No.: GB/T 31481-2015
English Name: Guidance for gas/materials compatibility of cryogenic vessels
Chinese Name: 深冷容器用材料与气体的相容性判定导则
Chinese Classification: A82    Packaging material and container
Professional Classification: GB    National Standard
ICS Classification: 23.020.40 23.020.40    Cryogenic vessels 23.020.40
Issued by: AQSIQ; SAC
Issued on: 2015-05-15
Implemented on: 2015-9-1
Status: valid
Language: English
File Format: PDF
Word Count: 8500 words
Price(USD): 250.0
Delivery: via email in 1 business day
Guidance for gas/materials compatibility of cryogenic vessels 1 Scope This standard gas/materials compatibility requirements for cryogenic vessels, but it does not cover mechanical properties (e.g. for low temperature applications). It gives general guidance for compatibility with gases and detailed compatibility requirements for oxygen and oxygen-enriched atmospheres. This standard also defines the testing methods for establishing oxygen compatibility of materials (metallic and non-metallic) to be used for cryogenic vessels and associated equipment. This standard focuses on materials that are normally with or could be in contact with cryogenic fluids. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 10297:1999 Transportable gas cylinders - Cylinder valves - Specification and type testing ISO 23208 Cryogenic vessels - Cleanliness for cryogenic service 3 Compatibility of materials with gases other than oxygen Cryogenic vessels are used in a range of temperatures from very low temperature to ambient temperature. On excluding oxygen, compatibility problems such as corrosion and hydrogen embrittlement normally occur at ambient temperature and become negligible at cryogenic temperatures. In the case of gases other than oxygen, ISO 11114-1 and ISO 11114-2 can be used as a guide for cryogenic vessels. 4 General requirements for oxygen service 4.1 Evaluation of materials for oxygen service 4.1.1 General The selection of a material for use with oxygen and/or in an oxygen-enriched atmosphere shall be primarily a matter of understanding the circumstances that cause oxygen to react with the material. Most materials in contact with oxygen will not ignite without a source of ignition energy. When an energy input rate, as converted to heat, is greater than the rate of heat dissipation, and the resulting heat increase is continued for sufficient time, ignition and combustion will occur. Thus, two things shall be considered:
Foreword I 1 Scope 2 Normative references 3 Compatibility of materials with gases other than oxygen 4 General requirements for oxygen service Annex A (Informative) Metallic materials commonly used for liquid oxygen service Annex B (Normative) Spontaneous ignition test (bomb test) Annex C (Normative) Pressure surge test Bibliography
GB/T 31481-2015 is referred in:
*GB/T 18442.3-2019 Static vacuum insulated cryogenic pressure vessels—Part 3:Design
*GB/T 18442.2-2019 Static vacuum insulated cryogenic pressure vessels—Part 2:Materials
*NB/T 47059-2017 Tank containers for refrigerated liquefied gas
*NB/T 47058-2017 Road tankers for refrigerated liquefied gas
*GB/T 40061-2021 Technical specification for liquid hydrogen production system
*GB/T 15382-2021 General specifications of gas cylinder valves
*GB/T 24159-2022 Welded insulated cylinders
Code of China
Standard
GB/T 31481-2015  Guidance for gas/materials compatibility of cryogenic vessels (English Version)
Standard No.GB/T 31481-2015
Statusvalid
LanguageEnglish
File FormatPDF
Word Count8500 words
Price(USD)250.0
Implemented on2015-9-1
Deliveryvia email in 1 business day
Detail of GB/T 31481-2015
Standard No.
GB/T 31481-2015
English Name
Guidance for gas/materials compatibility of cryogenic vessels
Chinese Name
深冷容器用材料与气体的相容性判定导则
Chinese Classification
A82
Professional Classification
GB
ICS Classification
Issued by
AQSIQ; SAC
Issued on
2015-05-15
Implemented on
2015-9-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
Language
English
File Format
PDF
Word Count
8500 words
Price(USD)
250.0
Keywords
GB/T 31481-2015, GB 31481-2015, GBT 31481-2015, GB/T31481-2015, GB/T 31481, GB/T31481, GB31481-2015, GB 31481, GB31481, GBT31481-2015, GBT 31481, GBT31481
Introduction of GB/T 31481-2015
Guidance for gas/materials compatibility of cryogenic vessels 1 Scope This standard gas/materials compatibility requirements for cryogenic vessels, but it does not cover mechanical properties (e.g. for low temperature applications). It gives general guidance for compatibility with gases and detailed compatibility requirements for oxygen and oxygen-enriched atmospheres. This standard also defines the testing methods for establishing oxygen compatibility of materials (metallic and non-metallic) to be used for cryogenic vessels and associated equipment. This standard focuses on materials that are normally with or could be in contact with cryogenic fluids. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 10297:1999 Transportable gas cylinders - Cylinder valves - Specification and type testing ISO 23208 Cryogenic vessels - Cleanliness for cryogenic service 3 Compatibility of materials with gases other than oxygen Cryogenic vessels are used in a range of temperatures from very low temperature to ambient temperature. On excluding oxygen, compatibility problems such as corrosion and hydrogen embrittlement normally occur at ambient temperature and become negligible at cryogenic temperatures. In the case of gases other than oxygen, ISO 11114-1 and ISO 11114-2 can be used as a guide for cryogenic vessels. 4 General requirements for oxygen service 4.1 Evaluation of materials for oxygen service 4.1.1 General The selection of a material for use with oxygen and/or in an oxygen-enriched atmosphere shall be primarily a matter of understanding the circumstances that cause oxygen to react with the material. Most materials in contact with oxygen will not ignite without a source of ignition energy. When an energy input rate, as converted to heat, is greater than the rate of heat dissipation, and the resulting heat increase is continued for sufficient time, ignition and combustion will occur. Thus, two things shall be considered:
Contents of GB/T 31481-2015
Foreword I 1 Scope 2 Normative references 3 Compatibility of materials with gases other than oxygen 4 General requirements for oxygen service Annex A (Informative) Metallic materials commonly used for liquid oxygen service Annex B (Normative) Spontaneous ignition test (bomb test) Annex C (Normative) Pressure surge test Bibliography
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Keywords:
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