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Position: Chinese Standard in English/GB/T 26951-2011
GB/T 26951-2011   Non-destructive testing of welds - Magnetic particle testing (English Version)
Standard No.: GB/T 26951-2011 Status:valid remind me the status change

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Language:English File Format:PDF
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Implemented on:2012-3-1 Delivery: via email in 1 business day
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Standard No.: GB/T 26951-2011
English Name: Non-destructive testing of welds - Magnetic particle testing
Chinese Name: 焊缝无损检测 磁粉检测
Chinese Classification: J33    Welding and cutting
Professional Classification: GB    National Standard
ICS Classification: 25.160.40 25.160.40    Welded joints and welds 25.160.40
Issued by: AQSIQ; SAC
Issued on: 2011-9-29
Implemented on: 2012-3-1
Status: valid
Language: English
File Format: PDF
Word Count: 8000 words
Price(USD): 200.0
Delivery: via email in 1 business day
Non-destructive testing of welds — Magnetic particle testing 1 Scope This standard specifies techniques for detection of surface imperfections in welds in ferromagnetic materials, including the heat affected zones, by means of magnetic particle testing. Variations in the basic techniques that will provide a higher or lower test sensitivity, are described in Annex A. This standard is suitable for most welding processes and joint configurations. This standard does not specify acceptance levels of the indications. Further information on acceptance levels for indications may be found in GB/T 26952 or in product or application standards. 2 Normative References The following referenced documents are indispensable for the purpose 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. GB/T 5097 Non-destructive testing — Penetrant testing and magnetic particle testing — Viewing conditions (GB/T 5097-2005, ISO 3059:2001, IDT) GB/T 5616 Non-destructive testing — Guidelines for application GB/T 9445 Non-destructive testing — Qualification and certification of personnel (GB/T 9445-2008, ISO 9712:2005, IDT) GB/T 12604.5 Non-destructive Testing — Terminology — Terms Used in Magnetic Particle Testing GB/T 15822.2 Non-destructive testing — Magnetic particle testing — Part 2: Detection media GB/T 15822.3 Non-destructive testing — Magnetic particle testing — Part 3: Equipment (GB/T 15822.3-2005, ISO 9934-3:2002, IDT) GB/T 20737 Non-destructive testing — General terms and definitions (GB/T 20737-2006, ISO/TS 18173:2005, IDT) GB/T 23907 Non-destructive Testing — Shims for Magnetic Particle Testing GB/T 26952 Non-destructive testing of welds — Magnetic particle testing of welds — Acceptance levels (GB/T 26952-2011, ISO 23278:2006, MOD) 3 Terms and definitions For the purpose of this document, the terms and definitions given in GB/T 12604.5 and GB/T 20737 apply. 4 Safety precautions National and local safety and environmental protection regulations shall be observed at all times. Special consideration shall be given to toxic, inflammable and volatile materials, electrical safety and unfiltered UV radiation. 5 General 5.1 Information required prior to testing Prior to testing, the following items shall be specified (where applicable): a) specific test procedure (see GB/T 5616); b) certification requirements for NDT personnel; c) extent of coverage; d) state of manufacture; e) testing techniques to be used; f) overall performance test; g) demagnetization requirements; h) acceptance level; i) action necessary for unacceptable indications. 5.2 Additional pre-test information Prior to testing, the following additional information may also be required: a) type and designation of the parent and weld materials; b) welding process; c) location and extent of welds to be tested;
Foreword I 1 Scope 2 Normative References 3 Terms and definitions 4 Safety precautions 5 General 5.1 Information required prior to testing 5.2 Additional pre-test information 5.3 Personnel qualification 5.4 Surface conditions and preparation 5.5 Magnetizing 5.6 Application techniques 5.7 Detection media 5.8 Viewing conditions 5.9 Application of detection media 5.10 Overall performance test 5.11 False indications 5.12 Recording of indications 5.13 Demagetization 5.14 Test report Annex A (Informative) Variables affecting the sensitivity of magnetic particle testing Annex B (Normative) Magnetic cross coil technology Annex C (Normative) Overall performance test of system sensitivity with test pieces
Referred in GB/T 26951-2011:
*GB/T 5097-2020 Non-destructive testing—Penetrant testing and magnetic particle testing—Viewing conditions
*GB/T 5616-2014 Non-destructive Testing - Guidelines for Application
*GB/T 9445-2015 Non-destructive testing―Qualification and certification of NDT personnel
*GB/T 12604.5-2020 Non-destructive testing—Terminology—Magnetic particle testing
*GB/T 15822.2-2005 Non-desstructive testing-Magnetic particle testing-Part 2:Detection media
*GB/T 15822.3-2005 Non-destructive testing - Magnetic particle testing - Part 3: Equipment
*GB/T 20737-2006 Non-destructive testing - General terms and definitions
*GB/T 23907-2009 Non-destructive testing—Shims for magnetic particle testing
*GB/T 26952-2011 Non-destructive testing of welds - Magnetic particle testing of welds - Acceptance levels
GB/T 26951-2011 is referred in:
*GB/T 5905.1-2023 Cranes—Inspection and test code—Part 1:General principle
Code of China
Standard
GB/T 26951-2011  Non-destructive testing of welds - Magnetic particle testing (English Version)
Standard No.GB/T 26951-2011
Statusvalid
LanguageEnglish
File FormatPDF
Word Count8000 words
Price(USD)200.0
Implemented on2012-3-1
Deliveryvia email in 1 business day
Detail of GB/T 26951-2011
Standard No.
GB/T 26951-2011
English Name
Non-destructive testing of welds - Magnetic particle testing
Chinese Name
焊缝无损检测 磁粉检测
Chinese Classification
J33
Professional Classification
GB
ICS Classification
Issued by
AQSIQ; SAC
Issued on
2011-9-29
Implemented on
2012-3-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
Language
English
File Format
PDF
Word Count
8000 words
Price(USD)
200.0
Keywords
GB/T 26951-2011, GB 26951-2011, GBT 26951-2011, GB/T26951-2011, GB/T 26951, GB/T26951, GB26951-2011, GB 26951, GB26951, GBT26951-2011, GBT 26951, GBT26951
Introduction of GB/T 26951-2011
Non-destructive testing of welds — Magnetic particle testing 1 Scope This standard specifies techniques for detection of surface imperfections in welds in ferromagnetic materials, including the heat affected zones, by means of magnetic particle testing. Variations in the basic techniques that will provide a higher or lower test sensitivity, are described in Annex A. This standard is suitable for most welding processes and joint configurations. This standard does not specify acceptance levels of the indications. Further information on acceptance levels for indications may be found in GB/T 26952 or in product or application standards. 2 Normative References The following referenced documents are indispensable for the purpose 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. GB/T 5097 Non-destructive testing — Penetrant testing and magnetic particle testing — Viewing conditions (GB/T 5097-2005, ISO 3059:2001, IDT) GB/T 5616 Non-destructive testing — Guidelines for application GB/T 9445 Non-destructive testing — Qualification and certification of personnel (GB/T 9445-2008, ISO 9712:2005, IDT) GB/T 12604.5 Non-destructive Testing — Terminology — Terms Used in Magnetic Particle Testing GB/T 15822.2 Non-destructive testing — Magnetic particle testing — Part 2: Detection media GB/T 15822.3 Non-destructive testing — Magnetic particle testing — Part 3: Equipment (GB/T 15822.3-2005, ISO 9934-3:2002, IDT) GB/T 20737 Non-destructive testing — General terms and definitions (GB/T 20737-2006, ISO/TS 18173:2005, IDT) GB/T 23907 Non-destructive Testing — Shims for Magnetic Particle Testing GB/T 26952 Non-destructive testing of welds — Magnetic particle testing of welds — Acceptance levels (GB/T 26952-2011, ISO 23278:2006, MOD) 3 Terms and definitions For the purpose of this document, the terms and definitions given in GB/T 12604.5 and GB/T 20737 apply. 4 Safety precautions National and local safety and environmental protection regulations shall be observed at all times. Special consideration shall be given to toxic, inflammable and volatile materials, electrical safety and unfiltered UV radiation. 5 General 5.1 Information required prior to testing Prior to testing, the following items shall be specified (where applicable): a) specific test procedure (see GB/T 5616); b) certification requirements for NDT personnel; c) extent of coverage; d) state of manufacture; e) testing techniques to be used; f) overall performance test; g) demagnetization requirements; h) acceptance level; i) action necessary for unacceptable indications. 5.2 Additional pre-test information Prior to testing, the following additional information may also be required: a) type and designation of the parent and weld materials; b) welding process; c) location and extent of welds to be tested;
Contents of GB/T 26951-2011
Foreword I 1 Scope 2 Normative References 3 Terms and definitions 4 Safety precautions 5 General 5.1 Information required prior to testing 5.2 Additional pre-test information 5.3 Personnel qualification 5.4 Surface conditions and preparation 5.5 Magnetizing 5.6 Application techniques 5.7 Detection media 5.8 Viewing conditions 5.9 Application of detection media 5.10 Overall performance test 5.11 False indications 5.12 Recording of indications 5.13 Demagetization 5.14 Test report Annex A (Informative) Variables affecting the sensitivity of magnetic particle testing Annex B (Normative) Magnetic cross coil technology Annex C (Normative) Overall performance test of system sensitivity with test pieces
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Keywords:
GB/T 26951-2011, GB 26951-2011, GBT 26951-2011, GB/T26951-2011, GB/T 26951, GB/T26951, GB26951-2011, GB 26951, GB26951, GBT26951-2011, GBT 26951, GBT26951