NB/T 20003.1-2021Non-destructive testing for mechanical components in nuclear island of nuclear power plants - Part 1: General requirements (English PDF)
核电厂核岛机械设备无损检测 第1部分：通用要求
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Issued by
NEA
Level / Type
Industry · Recommended
Issue date
January 7, 2021
Implementation date
July 1, 2021
Scope
NB/T 20003.1-2021 is the English-translated version of 核电厂核岛机械设备无损检测 第1部分：通用要求.
NB/T 20003.1-2021 is the Chinese standard "Non-destructive testing for mechanical components in nuclear island of nuclear power plants - Part 1: General requirements".
Its scope clause reads: This document specifies the general requirements and principles for use of ultrasonic testing, radiographic testing, penetrant testing, magnetic particle testing, eddy current testing, visual testing and leak testing of mechanical components in nuclear island of nuclear power plants.
This document is applicable to non-destructive testing during the manufacture and installation of mechanical components in nuclear island of nuclear power plants. Its clauses include terms and definitions.
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Document preview — NB/T 20003.1-2021
National Standard of the People's Republic of China
- Replacing
- NB/T 20003.1-2010
Issued by: National Energy Administration of the People's Republic of China
Contents
- Foreword i
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Use principles
- 5 General requirements
- 6 Record, evaluation and quality grading
- 7 Testing records and reports
- Annex A (Informative) Comparison table of defects and NDT methods
1 Scope
This document specifies the general requirements and principles for use of ultrasonic testing, radiographic testing, penetrant testing, magnetic particle testing, eddy current testing, visual testing and leak testing of mechanical components in nuclear island of nuclear power plants.
This document is applicable to non-destructive testing during the manufacture and installation of mechanical components in nuclear island of nuclear power plants.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
NB/T 20003.2 Non-destructive testing for mechanical components in nuclear island of nuclear power plants - Part 2: Ultrasonic testing
NB/T 20003.3 Non-destructive testing for mechanical components in nuclear island of nuclear power plants - Part 3: Radiographic testing
NB/T 20003.4 Non-destructive testing for mechanical components in nuclear island of nuclear power plants - Part 4: Penetrant testing
NB/T 20003.5 Non-destructive testing for mechanical components in nuclear island of nuclear power plants - Part 5: Magnetic particle testing
NB/T 20003.6 Non-destructive testing for mechanical components in nuclear island of nuclear power plants - Part 6: Eddy current testing
NB/T 20003.7 Non-destructive testing for mechanical components in nuclear island of nuclear power plants - Part 7: Visual testing
NB/T 20003.8 Non-destructive testing for mechanical components in nuclear island of nuclear power plants - Part 8: Leak testing
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1 NDT method
application of physical or chemical principles in nondestructive testing
3.2 NDT technique
specific way for application of NDT method
3.3 NDT procedure
written document describing how to regulate the use of an NDT technique
3.4 indication
sign and response resulted from application of NDT method
3.5 discontinuity
lack of continuity or combination, artificial or non-artificial discontinuity in the physical structure or shape of a material or workpiece
3.6 imperfection
deviation of the quality characteristics, compared with the expected condition
3.7 defect
imperfection and discontinuity that affect the product structure and damage its adaptability
3.8 false indication
indication caused by conditions other than discontinuity or imperfection, the form of which depends on the NDT method used
3.9 interpretation
determination of correlation, noncorrelation, or false indication […]
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Cited by
- GB/T 16702.6-2025Design specification for mechanical components in nuclear island of pressurized water reactor nuclear power plants - Part 6: Reactor vessel internals
- NB/T 20003.2-2021Non-destructive testing for mechanical components in nuclear island of nuclear power plants - Part 2: Ultrasonic testing
- NB/T 20482-2018Specification for design and construction of steel containment vessel of nuclear power plant of PWR
- NB/T 20400-2017Technical specification for fabrication of stainless steel elements of reactor cavity pool and spent fuel pool in PWR nuclear power plant
- NB/T 20416-2017Design and manufacture standard for nuclear-grade metal bellows expansion joints for PWR nuclear power plants
- NB/T 20346-2015Technical specification for fabrication and installation of polar crane runway beams in reactor building of PWR nuclear power plants
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Editions of NB/T 20003.1
| Edition | Title | Revision | Status |
|---|---|---|---|
| NB/T 20003.1-2021 | Non-destructive testing for mechanical components in nuclear island of nuclear power plants - Part 1: General requirements | current edition | Current |
| NB/T 20003.1-2010 | Non-destructive testing for mechanical components in nuclear island of nuclear power plants - Part 1: General requirements | previous edition | Superseded |
This page sells the current edition, NB/T 20003.1-2021. Earlier editions are listed for reference only.
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Related Standards
NB/T 20003.2-2021 — Non-destructive testing for mechanical components in nuclear island of nuclear power plants - Part 2: Ultrasonic testing
NB/T 20003.2-2010 — Non-destructive testing for mechanical components in nuclear island of nuclear power plants - Part 2: Ultrasonic testing
NB/T 20003.3-2021 — Non-destructive testing for mechanical components in nuclear island of nuclear power plants - Part 3: Radiographic testing
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