GB/T 26642-2022_English: PDF (GB/T26642-2022)
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Non-destructive testing - Industrial computed radiography with storage phosphor imaging plates - General principles for testing of metallic materials using X-rays and gamma rays
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GB/T 26642-2022
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GB/T 26642-2011 | English | 679 |
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Non-destructive testing -- Test method for computed radiography of metallic materials
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GB/T 26642-2011
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Standard ID | GB/T 26642-2022 (GB/T26642-2022) | Description (Translated English) | Non-destructive testing - Industrial computed radiography with storage phosphor imaging plates - General principles for testing of metallic materials using X-rays and gamma rays | Sector / Industry | National Standard (Recommended) | Classification of Chinese Standard | J04 | Classification of International Standard | 19.100 | Word Count Estimation | 31,373 | Date of Issue | 2022-03-09 | Date of Implementation | 2022-10-01 | Drafting Organization | Shanghai Institute of Materials Research, Hubei Sanjiang Aerospace Jiangbei Mechanical Engineering Co., Ltd., National Nuclear Power Plant Operation Service Technology Co., Ltd., Nuclear Industry Engineering Research and Design Co., Ltd., Henan Star Testing Technology Co., Ltd., Zhejiang Jinyun Image Quality Meter Factory | Administrative Organization | National Nondestructive Testing Standardization Technical Committee (SAC/TC 56) | Proposing organization | National Nondestructive Testing Standardization Technical Committee (SAC/TC 56) | Issuing agency(ies) | State Administration for Market Regulation, National Standardization Administration | Standard ID | GB/T 26642-2011 (GB/T26642-2011) | Description (Translated English) | Non-destructive testing. Test method for computed radiography of metallic materials | Sector / Industry | National Standard (Recommended) | Classification of Chinese Standard | J04 | Classification of International Standard | 19.100 | Word Count Estimation | 17,131 | Date of Issue | 2011-06-16 | Date of Implementation | 2012-03-01 | Quoted Standard | GB/T 3323-2005; GB/T 5677-2007; GB/T 9445; GB 11533; GB/T 12604.2; GB/T 19802; GB/T 23901.1; GB/T 23901.2; GB/T 23901.3; GB/T 23901.4; GB/T 23901.5; EN 14784-1-2005 | Adopted Standard | EN 14784-2-2005, MOD | Drafting Organization | Jiangsu Province Special Equipment Safety Supervision and Inspection Institute | Administrative Organization | National Standardization Technical Committee NDT | Regulation (derived from) | Announcement of Newly Approved National Standards No. 9 of 2011 | Issuing agency(ies) | Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration of China | Summary | This standard specifies the industrial computer X-ray and gamma radiography basic techniques and storage phosphor imaging plate (IP) general guidelines, and its purpose is to ensure detection of metallic materials in industrial applications to get a good and reproducible results. The use of gamma -ray sources. X -ray apparatus and associated equipment shall comply with the basic requirements of the relevant provisions and applicable to the relevant product standards. This standard does not specify defect acceptance criteria. |
GB/T 26642-2022
Non-destructive testing - Industrial computed radiography with storage phosphor imaging plates - General principles for testing of metallic materials using X-rays and gamma rays
ICS 19.100
CCSJ04
National Standards of People's Republic of China
Replacing GB/T 26642-2011
Nondestructive testing based on storage phosphorescence
Industrial Computed Radiographic Inspection of Imaging Plates
General rules for X-ray and gamma-ray inspection of metallic materials
2022-03-09 Released 2022-10-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
directory
Preface I
1 Scope 1
2 Normative references 1
3 Terms and Definitions 2
4 Symbols and abbreviations5
5 Personnel qualifications6
6 Classification and Compensation Principles of Computed Radiography 6
7 General 7
8 Recommended Computed Radiography Techniques8
9 Test report 17
Appendix A (normative) Determination of basic spatial resolution SRbdetector 19
Appendix B (normative) Determination of the normalized signal-to-noise ratio SNRN from the measured signal-to-noise ratio SNRmeasured 23
Appendix C (normative) Determination of minimum gray value 24
Reference 27
foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"
drafted.
This document replaces GB/T 26642-2011 "Non-destructive testing of metal materials by computer radiography", and
Compared with GB/T 26642-2011, in addition to structural adjustment and editorial changes, the main technical changes are as follows.
a) changed the scope (see Chapter 1, Chapter 1 of the.2011 edition);
b) Changed and added some terms and definitions (see Chapter 3, Chapter 4 of the.2011 edition);
c) Added symbols and abbreviations (see Chapter 4);
d) Personnel qualifications have been changed (see Chapter 5, Chapter 4 of the.2011 edition);
e) the principle of compensation for computed radiography has been added (see Chapter 6);
f) Changed the requirements for the use of the image quality meter (see 7.6, 6.6 of the.2011 edition);
g) Changed the requirements for transillumination (see 8.1, 7.1 of the.2011 edition);
h) Changed the selection requirements of X-ray tube voltage and radiation source (see 8.2, 7.2 of the.2011 edition);
i) Changed the requirements for CR system and metal screen (see 8.3, 7.3 of the.2011 edition);
j) Changed the requirements for the selection of maximum unsharpness and basic spatial resolution of CR systems (see 8.4, 7.4 of the.2011 edition);
k) Changed the requirements for ray source-workpiece distance (see 8.7, 7.7 of the.2011 edition);
l) The requirement of minimum readout intensity for computed radiography has been deleted (see 7.9 of the.2011 edition);
m) The requirements for observation conditions and displays are deleted (see 7.11 of the.2011 edition);
n) Added requirements for data processing (see 8.10);
o) Changed the requirements of the test report (see Chapter 9, Chapter 8 of the.2011 edition);
p) Added normative Appendix A "Determination of Basic Spatial Resolution" (see Appendix A);
q) Added Normative Appendix B "Determination of Normalized Signal-to-Noise Ratio" (see Appendix B);
r) Added Normative Appendix C "Determination of Minimum Gray Value" (see Appendix C).
This document is identical to ISO 16371-2.2017 "Non-Destructive Testing Industrial Computed Radiographic Testing Based on Storage Phosphorescent Imaging Plates"
Part 2.General Rules for X-ray and Gamma-ray Inspection of Metallic Materials.
The following minimal editorial changes have been made to this document.
--- In order to harmonize with existing standards, the name of the standard was changed to "Non-destructive testing of industrial computerized radiography based on storage phosphorescent imaging plates.
General Rules for X-ray and Gamma-ray Inspection of Metallic Materials.
Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents.
This document is proposed and managed by the National Technical Committee for Standardization of Nondestructive Testing (SAC/TC56).
This document was drafted by. Shanghai Institute of Materials, Hubei Sanjiang Aerospace Jiangbei Mechanical Engineering Co., Ltd., State Nuclear Power Plant Operation Service Technology
Co., Ltd., Nuclear Industry Engineering Research and Design Co., Ltd., Henan Sida Detection Technology Co., Ltd., Zhejiang Jinyun Image Quality Meter Factory.
The main drafters of this document. Jiang Jiansheng, Wang Xiaoyong, Wang Cong, Yan Yu, Yang Dong, Liu Zhanglong, Huang Yin, Ding Jie, Ma Jun, Song Fei, Yang Huimin,
Hu Jieyu, Chen Ruibin, He Kunhong.
This document was first published in.2011 and this is the first revision.
Nondestructive testing based on storage phosphorescence
Industrial Computed Radiographic Inspection of Imaging Plates
General rules for X-ray and gamma-ray inspection of metallic materials
1 Scope
This document specifies the basic techniques of computed radiography with a view to obtaining satisfactory results economically and reproducibly. The technology to detect
It is based on the basic theory of measurement and experimental measurement. This document specifies the use of industrial computer X and gamma rays that store phosphorescent imaging plates (IPs).
General rules for detection. This document is based on the basic principles of film-based radiographic inspection of metallic materials as defined in ISO 5579.
Basic setup of radiation sources, detectors and their corresponding geometrical positions in accordance with ISO 5579 and related product standards, such as welding seam standard ISO 17636
And casting standard EN12681 requirements.
This document does not prescribe missing acceptance clauses. Computed radiography (CR) systems provide computer-only viewing and evaluation
Digital grayscale image. This document establishes recommended principles for the selection of detectors and radiographic testing. Computers, software, monitors, printers
and observation conditions and other important elements are not the main content of this document.
This document specifies the minimum requirements for computed radiography and digital images to obtain film-based radiographs as determined in accordance with ISO 5579
Photographic detection is equally lacking in detection sensitivity. Some application standards, such as EN16407, provide inspections that may require different or less stringent requirements.
test conditions.
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations
documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to
this document.
GB/T 21355-2022 Classification of non-destructive testing of industrial computerized radiography inspection systems based on storage phosphorescent imaging plates
(ISO 16371-1.2011, IDT)
ISO 5579 Basic rules for non-destructive testing of metallic materials X and gamma radiographic testing (Non-destructive testing-
Note. GB/T 19943-2005 Basic Rules for Nondestructive Testing of Metallic Materials X and Gamma Radiography (ISO 5579.1998, IDT).
ISO 5580 Minimum requirements for non-destructive testing of industrial radiographic viewing lamps (Non-destructive testing-Industrialradio-
Note. GB/T 19802-2005 Minimum requirements for industrial radiographic viewing lamps for non-destructive testing (ISO 5580.1985, IDT).
tionofNDTpersonnel)
Note. GB/T 9445-2015 Non-destructive testing personnel qualification and certification (ISO 9712.2012, IDT).
ISO 16371-1 Non-destructive testing Industrial computed radiographic testing based on stored phosphorescent imaging plates Part 1.Classification of systems
ISO 19232-1 Non-destructive testing - Radiographic testing of image quality - Part 1.Determination of image quality values with filament IQI (Non-de-
......
GB/T 26642-2011
Non-destructive testing. Test method for computed radiography of metallic materials
ICS 19.100
J04
National Standards of People's Republic of China
NDT
Metallic material Computed Radiography detection methods
Issued on. 2011-06-16
2012-03-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions
4 Qualification 2
5 Computer radiography grade 3
6 Overview 3
7 Computed Radiography Technology 4 Recommended
8 11 test reports
References 13
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
2005 "Non-destructive testing of industrial computer storage phosphor imaging plates ray. This revised standard adopts EN14784-2 use redrafted law
Pictures - Part 2. metallic materials by X-ray and gamma-ray detector General. "
This standard EN14784-2.2005 and the technical differences for the following reasons.
--- On normative references, this standard has been adjusted technical differences, in order to adapt our technical conditions, the adjusted situation
Focus is reflected in the status of Chapter 2, "Normative references", the specific adjustments are as follows.
● increase cited GB/T 3323-2005 (see 7.1), GB/T 5677-2007 (see 7.1), GB/T 9445 (see 4.1),
GB 11533 (see 4.4), GB/T 12604.2 (see Chapter 3), GB/T 19802 (see 7.11);
● equivalents adoption of international standards GB/T 23901.1 ~ 23901.5 instead EN462.1 ~ 462.5 (see Chapter 5,
6.6.1,7.4,7.9);
--- Modify some of the terms and definitions (see 3.1,3.6);
--- An increase of some terms and definitions (see 3.8,3.9,3.10);
--- Increasing the specific requirements of Chapter 4 qualification of personnel;
--- Increased in Chapter 5, the use of higher category CR system to compensate for the loss of a sensitive method;
--- Deleted Chapter 5 can be recessed hole IQI to prove that film radiography and computed radiography in the use of Class A and B
Class technology to detect defects comparability;
--- Increasing the specific requirements ray detection timing of 6.2, according to the corresponding national standards and practices related technologies, increase the delay crack
Grain orientation detection timing of material requirements;
--- Modify the requirements in 6.3 Radiographic identified, consistent with our practice-ray detector;
--- 6.6.1 modify the specific timing of the wire type IQI used;
--- Increased 6.6.2 IQI placement requirements;
--- Increased 6.6.3 IQI identification requirements;
--- 7.3 adds the concept of different IP- scanner system source type and energy range of adaptability;
--- Added "7.10 erase process";
--- The EN standard 7.10 was adjusted to 7.11, and modify the parameters of the monitor and viewing conditions.
The standard non-destructive testing by the National Standardization Technical Committee (SAC/TC56) centralized.
This standard was drafted. Jiangsu Province Special Equipment Safety Supervision Inspection Institute, China Special Equipment Inspection and Research Institute, Shanghai Material Research
, Shanghai IAC NDT Technology Co., Ltd., GE Sensing & Inspection Technologies (Shanghai) Co., Ltd., Hangzhou Hua'an NDT
Ltd., Harbin Welding Training Institute, Emerson Process Management Flow Technologies Co., Ltd. Nanjing South of non-destructive testing,
Nanjing Chenguang Group Co., Ltd., Haitai Division Inspection Technologies Ltd., Guangdong Steel Products Co. earnings-chuen.
The main drafters of this standard. Strong Tianpeng Cheng Hui, Wang Jun, Zheng Kai, Jin Yufei, Li Bo, Fan Qin, Zhang Liming, Xie Ying Long, Xu Jianqin, Lee Lin,
Huang Qinghua, Xu Ning home, Yu Yanping, Zhouguang Xiang, Zhang YIMING, according to Tsang Cheung.
NDT
Metallic material Computed Radiography detection methods
1 Scope
This standard specifies the industrial computer X-ray and gamma radiography technology and the basic storage phosphor imaging plate (IP) general guidelines,
Its purpose is to ensure that the ideals and reproducible results obtained in the industrial metal materials testing applications. Gamma-ray source is used, X-ray device
Set basic requirements and relevant equipment comply with the relevant regulations and standards applicable to the relevant product. This standard does not specify acceptance criteria defects.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 3323-2005 Metal fusion welded joints radiography (EN1435.1997)
GB/T 5677-2007 steel castings radiographic testing (ISO 4993. 1987)
GB/T 9445 NDT personnel qualification and certification (ISO 9712)
GB 11533 standard vision chart
GB/T 12604.2 Terminology for nondestructive testing radiographic testing (ISO 5576)
GB/T 19802 Non-destructive testing - Industrial radiographic film viewer Minimum requirements (ISO 5580)
GB/T 23901.1 - Part 1 lossless detection Image quality of radiographs. Determination of linear IQI Image Quality Index
(ISO 19232-1)
GB/T 23901.2 NDT Image quality of radiographs - Part 2. stepped hole IQI Image quality index measurement
(ISO 19232-2)
GB/T 23901.3 NDT Image quality of radiographs - Part 3. Image quality classes for ferrous metals (ISO 19232-3)
GB/T 23901.4 NDT Image quality of radiographs - Part 4. Experimental image quality and image quality index evaluation table
(ISO 19232-4)
GB/T 23901.5 NDT Image quality of radiographs - Part 5. wire type IQI image unsharpness Determination
(ISO 19232-5)
EN14784-1.2005 Non-destructive testing storage phosphor imaging plates - Industrial computed radiography - Part 1. Classification System (Non-
destructivetesting-Industrialcomputedradiographywithstoragephosphorimagingplates-Part 1.
Classificationofsystems)
3 Terms and Definitions
GB/T 12604.2 defined and the following terms and definitions apply to this document.
3.1
Storage phosphor imaging plates storagephosphorimagingplate
Acronym IP, is coated with a rare earth element europium, barium, fluorine compound of the flexible plate, after exposure can store information in a latent form, can be used instead
Film for radiographic testing.
......
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