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GB/T 43921-2024Non-destructive testing - Ultrasonic testing - Full matrix capture/total focusing technique (FMC/TFM) (English PDF)

无损检测超声检测全矩阵采集/全聚焦技术（FMC/TFM）

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

April 25, 2024

Implementation date

April 25, 2024

Scope

GB/T 43921-2024 is the English-translated version of 无损检测超声检测全矩阵采集/全聚焦技术（FMC/TFM）.

GB/T 43921-2024 is the Chinese standard "Non-destructive testing - Ultrasonic testing - Full matrix capture/total focusing technique (FMC/TFM)".

Its scope clause reads: This document specifies general principles for array ultrasonic testing using full matrix acquisition/total focusing techniques (FMC/TFM) and related technologies: Promoting FMC/T FM technology for better use in manufacturing process inspection, in-service inspection or post-repair inspection: This document presents application examples for qualitative and quantitative assessment of damage: This document applies to isotropic and homogeneous low carbon alloy steels, conventional aerospace grade aluminum alloys and titanium alloys: Austenite) also gives suggestions: This document does not give discrete levels of acceptance: For the application of FMC/T FM for testing welds, see ISO 23864:. Its clauses include terms and definitions.

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Document preview — GB/T 43921-2024

National Standard of the People's Republic of China

ICS: 19.100
Classification: J04

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface
1 Scope
2 Normative references
3 Terms and Definitions
4 Technical principles
5 Surface conditions and coupling requirements
6 Information required before testing
7 Requirements for testing personnel
8 Testing equipment requirements
9 Advantages of multiple imaging paths
10 Test Preparation
11 Testing process regulations
12 Data Storage
13 TFM image interpretation and analysis
14 Test report
15 Typical impacts and compensation mechanisms
Appendix A (Informative) Comparison of conventional PAUT and FMC/T FM techniques
Appendix B (Informative) FMC/T FM and other data acquisition and imaging technologies
Appendix C (Informative) FMC/T FM Settings, ROI and Grid Verification
Appendix D (Informative) Recommended settings and examples of FMC/T FM images

1 Scope

This document specifies general principles for array ultrasonic testing using full matrix acquisition/total focusing techniques (FMC/TFM) and related technologies:

Promoting FMC/T FM technology for better use in manufacturing process inspection, in-service inspection or post-repair inspection:

This document presents application examples for qualitative and quantitative assessment of damage:

This document applies to isotropic and homogeneous low carbon alloy steels, conventional aerospace grade aluminum alloys and titanium alloys:

Austenite) also gives suggestions:

This document does not give discrete levels of acceptance:

For the application of FMC/T FM for testing welds, see ISO 23864:

2 Normative references

The 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 5577 Non-destructive testing - Ultrasonic testing - Vocabulary

Note: GB/T 12604:1-2020 Non-destructive testing terminology Ultrasonic testing (ISO 5577:2017, MOD) tion of NDT personnel)

Note: GB/T 9445-2015 Qualification and certification of non-destructive testing personnel (ISO 9712:2012, IDT)

ISO 16810 Non-destructive testing-Ultrasonic testing-General principles

Note: GB/T 39240-2020 Non-destructive testing - General principles for ultrasonic testing (ISO 16810:2012, MOD)

ISO 18563-1 Performance and verification of phased array ultrasonic equipment for non-destructive testing Part 1: Instruments

Note: GB/T 42399:1-2023 Nondestructive testing instruments Performance and verification of phased array ultrasonic equipment Part 1: Instruments (ISO 18563-1:

2022, IDT)

ISO 18563-2 Performance and verification of phased array ultrasonic equipment for non-destructive testing Part 2: Probes

Note: GB/T 42399:2-2023 Performance and inspection of phased array ultrasonic equipment for nondestructive testing Part 2: Probes (ISO 18563-2:

2017, IDT) arrays-Vocabulary)

Note: GB/T 12604:13-2023 Non-destructive testing terminology Part 13: Array ultrasonic testing (ISO 23243:2020, IDT)

3 Terms and definitions

For the purposes of this document, the terms and definitions defined in ISO 5577, ISO 23243 and the following apply:

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 42 pages — is available in the English PDF.

Referenced standards

Normative references

ISO 5577 · GB/T 12604 · ISO 9712 · ISO 16810 · ISO 18563 · GB/T 42399 · ISO 23243

Cited by

GB/T 44362-2024Non-destructive testing of welds - Ultrasonic testing - Automated total focusing technique (TFM)

Similar standards

GB 38031-2025|GB/T43921-2024|GB/T 1|GB/T 12604|GB/T 9445-2015|GB/T 39240-2020|GB/T 42399|GB/T 42869

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