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Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 26954-2024: Non-destructive testing of welds - Eddy current testing of welds by complex-plane analysis Status: Valid GB/T 26954: Historical versions
Basic dataStandard ID: GB/T 26954-2024 (GB/T26954-2024)Description (Translated English): Non-destructive testing of welds - Eddy current testing of welds by complex-plane analysis Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: J33 Classification of International Standard: 25.160.40 Word Count Estimation: 22,243 Date of Issue: 2024-03-15 Date of Implementation: 2024-03-15 Older Standard (superseded by this standard): GB/T 26954-2011 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 26954-2024: Non-destructive testing of welds - Eddy current testing of welds by complex-plane analysis---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. ICS 25.160.40 CCSJ33 National Standards of People's Republic of China Replaces GB/T 26954-2011 Nondestructive testing of welds Eddy current testing of welds based on complex plane analysis (ISO 17643.2015, IDT) Released on 2024-03-15 2024-03-15 implementation State Administration for Market Regulation The National Standardization Administration issued Table of ContentsPreface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Personnel Qualifications 1 5.Development of process specifications 1 6 General application 2 6.1 Basic Information 2 6.2 Additional Information 2 6.3 Surface conditions 2 6.4 Testing equipment 2 6.4.1 Instrument (excluding probe) 2 6.4.2 Surface probe 3 6.4.3 Annex 3 6.4.4 Maintenance of testing equipment 5 6.5 Testing procedures 5 6.5.1 Signal Analysis Method 5 6.5.2 Procedure for coating thickness measurement and material evaluation based on calibration test blocks 5 6.5.3 Inspection procedures for ferromagnetic material welds 6.6 Detectability of discontinuities 11 6.7 Inspection procedures for welds made of other materials 12 7 Test report 12 Appendix A (Informative) Flowchart of recommended eddy current testing method 13 Appendix NA (Informative) Description of Orthogonal Non-directional Eddy Current Testing 14ForewordThis document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document replaces GB/T 26954-2011 "Non-destructive testing of welds - Eddy current testing of welds based on complex plane analysis" and Compared with GB/T 26954-2011, in addition to structural adjustments and editorial changes, the main technical changes are as follows. a) The scope of the application has been changed (see Chapter 1, Chapter 1 of the.2011 edition); b) Added the normative reference document ISO 12718 (see Chapter 3); c) The normative reference document GB/T 12604.6 (see Chapter 3 of the.2011 edition) has been deleted; d) The provisions on terms and definitions have been changed (see Chapter 3, Chapter 3 of the.2011 edition); e) The provisions on personnel qualifications have been changed (see Chapter 4, Chapter 4 of the.2011 edition); f) The provisions on the formulation of process specifications have been changed, and the normative reference document GB/T 5616 (see Chapter 5,.2011 edition) has been deleted. chapter); g) The provisions of basic information have been changed (see 6.1, 6.1 of the.2011 edition); h) Changed the provisions for probes for coating thickness measurement and material evaluation based on calibration test blocks (see 6.4.2.1,.2011 edition) 6.4.2.1); i) The provisions for weld inspection probes have been changed and notes have been added (see 6.4.2.2, 6.4.2.2 of the.2011 edition); j) The provisions on calibration certificates for testing equipment have been changed (see 6.4.4.1, 6.4.4.1 of the.2011 edition); k) Added the normative reference document ISO 15548-3 and changed the provisions on functional inspection of testing equipment (see 6.4.4.2, 6.4.4.2 of the.2011 edition); l) The provisions for the coating thickness measurement and material evaluation procedures based on calibration test blocks have been changed (see 6.5.2, 6.5.1 of the.2011 edition); m) The provisions for sensitivity calibration have been changed (see 6.5.3.2, 6.4.1.3 of the.2011 edition); n) The calibration regulations have been changed (see 6.5.3.2, 6.5.2.2 of the.2011 edition); o) The scanning regulations have been changed (see 6.5.3.3 and Appendix A, 6.5.2.3 of the.2011 edition); p) The minimum size of defects has been deleted (see 6.6.1 of the.2011 edition); q) Deleted the provisions on the evaluation of unacceptable signals, deleted the normative references GB/T 15822.1, GB/T 26951, GB/T 18851.1, GB/T 26952, GB/T 26953 (see 6.6.2 of the.2011 edition); r) Added the normative reference document ISO 15549 and changed the provisions of the test report (see Chapter 7, Chapter 7 of the.2011 edition); s) Added the description of orthogonal non-directional eddy current testing (see Appendix NA). This document is equivalent to ISO 17643.2015 "Non-destructive testing of welds - Eddy current testing of welds based on complex plane analysis". The following minimal editorial changes were made to this document. --- Added Appendix NA (informative). Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed by the China Machinery Industry Federation. This document is under the jurisdiction of the National Welding Standardization Technical Committee (SAC/TC55). This document was drafted by. Edelson (Xiamen) Electronics Co., Ltd., China Special Equipment Testing and Research Institute, Shanghai Institute of Materials Co., Ltd. Institute of Metal Research, Chinese Academy of Sciences, Beijing Aeronautical Engineering Technology Research Center, China Academy of Railway Sciences Group Co., Ltd. Institute of Science, Chinese People's Liberation Army Armored Forces Academy, Tsinghua University, Nanchang Hangkong University, Chinese People's Liberation Army Naval Aviation University, National Energy Group Science and Technology Research Institute, Huazhong University of Science and Technology, Xiamen University, Hunan Special Equipment Inspection and Testing Institute, Jinchuan Group Co., Ltd., Hunan University, Chengdu Special Equipment Inspection and Testing Institute, China Machinery Engineering Academy Group Harbin Welding Research Institute Co., Ltd. company. The main drafters of this document are. Shen Gongtian, Lin Junming, Cai Guixi, Wang Bin, Guo Qi, Dong Shiyun, Zhang Haibing, Huang Fengying, Huang Songling, Song Kai, Hu Xianlong, Kang Yihua, Zeng Zhiwei, Luo Gengsheng, Wei Wei, Dai Yonghong, He Yunze, Yang Kaiyu, Su Jinhua. The previous versions of this document and the documents it replaces are as follows. ---First published in.2011 as GB/T 26954-2011, this is the first revision. Nondestructive testing of welds Eddy current testing of welds based on complex plane analysis1 ScopeThis document specifies the method mainly used to detect surface openings and near-surface planar discontinuities of ferromagnetic materials (welds, heat-affected zones, parent materials). Eddy current testing technology. This document may also be used for testing of non-ferromagnetic materials if required by the design specifications. This document is applicable to the inspection of coated or uncoated welds, either onshore or offshore. Eddy current testing can be performed on all accessible weld surfaces of all types. Unless otherwise specified in the terms of this document, the general principles specified in ISO 15549 apply. NOTE. Eddy current testing is usually performed in the post-weld condition; however, very rough surfaces may affect the accuracy of the test.2 Normative referencesThe contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. ISO 12718 Non-destructive testing - Eddy current testing - Vocabulary ulary) Note. GB/T 12604.6-2021 Non-destructive testing terminology Eddy current testing (ISO 12718.2019, IDT) ISO 15548-3 Non-destructive testing Eddy current testing equipment Part 3.System performance and verification (Non-destructivetesting- Note. GB/T 14480.3-2020 Non-destructive testing instruments Eddy current testing equipment Part 3.System performance and verification (ISO 15548-3.2008, IDT) ISO 15549 Non-destructive testing - Eddy current testing - General principles Note. GB/T 30565-2014 Non-destructive testing - General principles for eddy current testing (ISO 15549.2008, MOD)3 Terms and definitionsFor the purpose of this document, the terms and definitions given in ISO 12718 apply.4 Personnel QualificationsNon-destructive testing should be carried out by qualified and competent personnel. It is recommended to follow ISO 9712 or equivalent standards issued by relevant industry authorities. to qualify or certify personnel to the appropriate level. 5.Development of process specifications The development of process specifications should comply with ISO 15549 or should be in accordance with the provisions of this document. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 26954-2024_English be delivered?Answer: Upon your order, we will start to translate GB/T 26954-2024_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 26954-2024_English with my colleagues?Answer: Yes. 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Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 26954-2024 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
