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GB/T 12605-2008: Non-destructive testing -- Test methods for radiographic testing of circumferential fusion-welded butt joints in metallic pipes and tubes
Status: Valid GB/T 12605: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 12605-2008 | English | 819 |
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Non-destructive testing -- Test methods for radiographic testing of circumferential fusion-welded butt joints in metallic pipes and tubes
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GB/T 12605-2008
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| GB/T 12605-1990 | English | 719 |
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Methods of radiographic inspection and quality classification of circumferential fusion welded butt joints in steel pipes and tubes
| Obsolete |
GB/T 12605-1990
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PDF similar to GB/T 12605-2008
Basic data | Standard ID | GB/T 12605-2008 (GB/T12605-2008) | | Description (Translated English) | Non-destructive testing -- Test methods for radiographic testing of circumferential fusion-welded butt joints in metallic pipes and tubes | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J04 | | Classification of International Standard | 19.100 | | Word Count Estimation | 37,365 | | Date of Issue | 2008-05-13 | | Date of Implementation | 2008-11-01 | | Older Standard (superseded by this standard) | GB/T 12605-1990 | | Quoted Standard | GB/T 9445; GB 11533-1989; GB/T 12604.2; GB 18871-2002; GB/T 19348.1-2003; GBZ 98-2002; GBZ 117-2002; GBZ 132-2002; JB/T 7902-2006 | | Regulation (derived from) | National Standard Approval Announcement 2008 No.7 (Total No.120) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the molten metal pipes welded butt joints radiographic testing methods and quality assessment classification. This standard applies to the ring mm wall thickness of the pipe and metal pipe butt joints. Butt weld pipe fittings, pipe can also refer to the use of welded joints. This standard does not apply to friction welding, flash welding and other mechanical methods butt joint welding. | GB/T 12605-2008: Non-destructive testing -- Test methods for radiographic testing of circumferential fusion-welded butt joints in metallic pipes and tubes
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Non-destructive testing. Test methods for radiographic testing of circumferential fusion-welded butt joints in metallic pipes and tubes
ICS 19.100
J04
National Standards of People's Republic of China
Replacing GB/T 12605-1990
Non-destructive testing of metal pipes to melt solder ring
Butt joints radiographic detection method
Posted 2008-05-13
2008-11-01 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 persons 2-ray detector
5 Radiation Protection 2
6 transillumination process 2
7 backsheet quality and observed for 12
Quality rating 8 13
9 film preservation and inspection report 19
Appendix A (informative) Calculation method of source maximum size of 20
Appendix B (normative) monofilament IQI 22
Annex C (normative) special contrast block 24
Annex D (informative) pipeline circumferential butt joints transillumination method for determining the number of 26
Annex E (informative) small diameter tube oval transillumination imaging detection of a range of approximate calculation method 31
Foreword
This standard replaces GB/T 12605-1990 "steel pipe girth fusion welded butt joints of radiographic inspection and quality classification."
This standard and GB/T 12605-1990 compared to the main changes are as follows.
--- Technical level of radiographic indicators were delineated, increase the selection of radiography grade requirements under different circumstances;
--- Increased industrial radiographic film classification system content, the film is divided into T1, T2, T3, T4 four categories;
--- Increased provisions 75Se-ray source applications;
--- Increase the range of suitable materials, steel pipe girth metal pipes to the hoop;
--- Steel, copper and copper alloys, aluminum and aluminum alloys, titanium and titanium alloys of different thicknesses highest tube voltage diagram has been modified;
--- Increased nickel and nickel alloys, copper and copper alloy pressure equipment butt joints ray detection quality grading content;
--- Appendix B monofilament IQI IQI added to the requirements of different materials;
--- Added Appendix D pipeline circumferential butt joints transillumination method for determining the number of times;
--- Increased transillumination first approximation calculation method of the imaging range detection Appendix E trails tube oval.
The Standard Appendix B, Appendix C are normative appendices, Appendix A, Appendix D, Appendix E is an information appendix.
The standard proposed by China Machinery Industry Federation.
The standard non-destructive testing by the National Standardization Technical Committee (SAC/TC56) centralized.
This standard was drafted. State Grid Electric Power Research Institute, Beijing Building, Tianjin Electric Power Construction Company, Zhejiang Thermal Power Construction Company, Yunnan Electric Power Test
Institute test (Group) Co., Ltd. Electric Power Research Institute, Shandong Electric Power Research Institute, Haimen Lianying Chang testing equipment.
The main drafters of this standard. EVAL celebrate, solemn, Zhang Xuefeng, Wu Qin Zhang, Xiao Shirong, Zheng Shi Cai, Wu Yingli, He Zhengbing.
This standard replaces the standards previously issued as follows.
--- GB/T 12605-1990.
Non-destructive testing of metal pipes to melt solder ring
Butt joints radiographic detection method
1 Scope
This standard specifies the molten metal pipes welded circumferential butt joints radiographic testing methods and quality assessment classification.
This standard applies to wall thickness (2 ~ 175) Ring mm metal tubes and pipes to the butt joint. Welded pipe fittings (tees, bends
Head), pipe (longitudinal seam spiral seam) can also refer to the use of welded joints.
This standard does not apply to friction welding, flash welding and other mechanical methods welding of butt joints.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 9445 NDT personnel qualification and certification (GB/T 9445-2008, ISO 9712.2005, IDT)
GB 11533-1989 standard vision chart
GB/T 12604.2 Terminology for nondestructive testing radiographic testing (GB/T 12604.2-2005, ISO 5576.1997, IDT)
GB 18871-2002 ionizing radiation protection and safety of radiation sources basic standards (neq IAEA Safety Series)
GB/T 19348.1-2003 destructive testing - Industrial radiographic film - Part 1. Classification of film systems for industrial radiography
(ISO 11699-1.1998, IDT)
GB Z98-2002 Radiation Workers' Health Standards
GB Z117-2002 industrial X-ray inspection health protection standards
GB Z132-2002 industrial γ-ray detection protection standards
JB/T 7902-2006 NDT radiographic testing linear IQI
3 Terms and Definitions
GB/T 12604.2 and established the following terms and definitions apply to this standard.
3.1
Public means nominal wall thickness of the base material. Without considering manufacturing variations.
3.2
The nominal thickness calculated based on the thickness of the radiation (transillumination) direction of the material.
3.3
Ray radiation source on the direction of the workpiece from the side of the subject to the film surface.
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