GB/T 31211.1-2024 English PDFUS$599.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 31211.1-2024: Non-destructive testing - Ultrasonic guided-wave testing - Part 1: General principle Status: Valid GB/T 31211.1: Historical versions
Basic dataStandard ID: GB/T 31211.1-2024 (GB/T31211.1-2024)Description (Translated English): Non-destructive testing - Ultrasonic guided-wave testing - Part 1: General principle Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: J04 Classification of International Standard: 19.100 Word Count Estimation: 30,356 Date of Issue: 2024-04-25 Date of Implementation: 2024-04-25 Older Standard (superseded by this standard): GB/T 31211-2014 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 31211.1-2024: Non-destructive testing - Ultrasonic guided-wave testing - Part 1: General principle---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 19:100 CCSJ04 National Standards of People's Republic of China Replace GB/T 31211-2014 Non-destructive testing Ultrasonic guided wave testing Part 1: General Non-destructive testing-Ultrasonic guided wave testing- Part 1: General principle Released on 2024-04-25 2024-04-25 implementation State Administration for Market Regulation The National Standardization Administration issued Table of ContentsPreface III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Detection Principle 2 5 Safety requirements 3 6 Personnel Qualification 3 7 General testing procedures 3 8 Detection System 4 9 Testing procedures 9 10 Evaluation and processing of test results 15 11 Test records and reports 16 Appendix A (Informative) Recommendations for Ultrasonic Guided Wave Testing Technology 17 Appendix B (Informative) Dispersion Curves and Wave Structure Analysis of Tube and Plate Components 18ForewordThis 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 is part 1 of GB/T 31211 Non-destructive testing - ultrasonic guided wave testing: GB/T 31211 has been published for the following part: --- Part 1: General; --- Part 2: Magnetostriction method: This document replaces GB/T 31211-2014 "General principles for non-destructive testing of ultrasonic guided waves": Compared with GB/T 31211-2014, except for structural In addition to adjustments and editorial changes, the main technical changes are as follows: a) Some terms and definitions have been changed (see Chapter 3, Chapter 3 of the:2014 edition); b) The detection principle has been changed (see 4:1, Chapter 4 of the:2014 edition); c) Added ultrasonic guided wave testing technology classification (see 4:2); d) The advantages, characteristics and limitations of ultrasonic guided wave testing have been deleted (see Chapter 4 of the:2014 edition); e) The safety requirements have been changed (see Chapter 5, Chapter 5 of the:2014 edition); f) The general testing process specifications have been changed (see Chapter 7, 7:1 of the:2014 edition); g) The detection instrument system has been changed (see 8:1, 8:1 of the:2014 edition); h) The ultrasonic guided wave sensor has been changed (see 8:2, 8:3 of the:2014 edition); i) Added the detector function classification (see 8:3:1); j) The test specimen has been changed (see 8:4, 8:7 of the:2014 edition); k) The maintenance and verification of testing equipment has been modified (see 8:5, 8:8 of the:2014 edition); l) Deleted the determination of test conditions (see 9:1:4 of the:2014 edition); m) Added the selection of guided wave detection mode and frequency (see 9:2); n) The detection implementation has been changed (see 9:5, 9:4 of the:2014 edition); o) Added contrast detection (see 9:6); p) The handling of unacceptable signals has been changed (see 10:2:4, 10:2:4 of the:2014 edition): 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 is proposed and coordinated by the National Technical Committee for Standardization of Nondestructive Testing (SAC/TC56): This document was drafted by: China Special Equipment Testing and Research Institute, Huazhong University of Science and Technology, Zhejiang University, Shanghai Institute of Materials Co:, Ltd:, Hunan Special Equipment Inspection and Testing Institute, Hangzhou Zheda Jingyi Electromechanical Technology Co:, Ltd:, China Special Inspection Yunzhi Safety Technology (Jiaxing) Co:, Ltd: Co:, Ltd:, Beijing Kehai Hengsheng Technology Co:, Ltd:, Shandong Ruixiang Mould Co:, Ltd:, Shandong Kejie Engineering Testing Co:, Ltd:, Anhui Huaxia High TECHNOLOGY DEVELOPMENT LIMITED: The main drafters of this document are: Shen Gongtian, Zheng Yang, Tang Zhifeng, Ding Jie, Wu Xinjun, Hu Bin, Peng Xiaolan, Zhang Junjiao, Li Sujun, Wang Junjie, Li Guanghai, Gao Guangxing, Lü Fuzai, Zhang Pengfei, Duan Qingru, Wei Zhongrui, Duan Yuanfeng, Shi Mingcheng, Chen Huiming, Liang Yumei, Li Huan: The previous versions of this document and the documents it replaces are as follows: ---First published in:2014 as GB/T 31211-2014;IntroductionAs an important part of non-destructive testing, ultrasonic guided wave testing technology is widely used in petroleum, chemical industry, electric power, marine engineering, transportation, etc: Detection of internal and external defects in waveguide structures such as pipelines, rails, plates and shells in the field, and detection in inaccessible areas such as covered layers and hidden shielding It has outstanding advantages, and has a long single detection distance and high work efficiency, providing an important technical means to ensure the safe operation of equipment: Ultrasonic guided wave detection technology includes magnetostriction, piezoelectric ultrasound, electromagnetic ultrasound, laser ultrasound and other methods: GB/T 31211 is intended to consist of two parts: --- Part 1: General: The purpose is to specify the ultrasonic guided wave to tubes, bars, plates, wires, profiles and other cross-sectional geometry specifications The overall requirements for testing structural parts: --- Part 2: Magnetostrictive method: The purpose is to specify the magnetostrictive ultrasonic method for quickly finding the cross-sectional loss in the component: Specific requirements for wave detection: This document is part 1 of GB/T 31211 and specifies the general requirements for ultrasonic guided wave testing: In:2014, the GB/T 31211 ultrasonic guided wave testing standard system was established, which clarified the general technical requirements for ultrasonic guided wave testing and played a positive role in the development of ultrasonic guided wave testing: The basic supporting role is conducive to promoting the popularization and application of ultrasonic guided wave detection technology: Non-destructive testing Ultrasonic guided wave testing Part 1: General1 ScopeThis document describes the use of various ultrasonic guided waves such as magnetostrictive, piezoelectric ultrasonic, electromagnetic ultrasonic, laser ultrasonic, etc: to detect the components under test: Use method: This document is applicable to elastic solid structural parts with regular cross-sectional geometric shapes such as tubes, bars, plates, wires (including ropes and cables), profiles, etc: Ultrasonic guided wave testing: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: GB/T 9445 Qualification and certification of non-destructive testing personnel GB/T 12604:1 Nondestructive testing terminology Ultrasonic testing GB/T 20737 General terms and definitions for non-destructive testing3 Terms and definitionsThe terms and definitions defined in GB/T 12604:1 and GB/T 20737 and the following apply to this document: 3:1 Waveguide A structure that directs ultrasound waves of a specific frequency: Note: For example, thin bars, tubes or thin plates: When the wall thickness is close to the wavelength, the longitudinal and transverse waves are affected by the boundary conditions and do not propagate in the original mode: It is spread in a specific form: 3:2 Ultrasonic guided wave Ultrasonic waves propagating along the surface or inside of a waveguide (3:1) structure in a specific waveguide mode (3:6): 3:3 Dispersion The phenomenon that wave speed changes with frequency: 3:4 Dispersive equation The relationship between wave velocity and frequency is reflected by the equations that satisfy the special solutions of elastic dynamics according to specific boundary conditions: 3:5 Dispersion curve dispersioncurve The curve of the relationship between wave velocity and frequency obtained by solving the dispersion equation (3:4): Note: The abscissa of the dispersion curve represents the frequency-thickness product, frequency, wavelength or wave number, and the ordinate represents the group velocity or phase velocity: ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 31211.1-2024_English be delivered?Answer: Upon your order, we will start to translate GB/T 31211.1-2024_English as soon as possible, and keep you informed of the progress. 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