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GB/T 15830-2008 English PDF

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GB/T 15830-2008: Non-destructive testing -- Practice for ultrasonic testing of circumferential butt welds in steel pipes and tubes
Status: Valid

GB/T 15830: Evolution and historical versions

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB/T 15830-2008	English	329	Add to Cart	3 days [Need to translate]	Non-destructive testing -- Practice for ultrasonic testing of circumferential butt welds in steel pipes and tubes	Valid	GB/T 15830-2008
GB/T 15830-1995	English	679	Add to Cart	5 days [Need to translate]	Method of ultrasonic inspetion and result classification of circumferential butt welds in steel pipes and tubes	Obsolete	GB/T 15830-1995

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Basic data

Standard ID	GB/T 15830-2008 (GB/T15830-2008)
Description (Translated English)	Non-destructive testing -- Practice for ultrasonic testing of circumferential butt welds in steel pipes and tubes
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	J04
Classification of International Standard	19.100
Word Count Estimation	14,122
Date of Issue	2008-07-30
Date of Implementation	2009-02-01
Older Standard (superseded by this standard)	GB/T 15830-1995
Quoted Standard	GB/T 5616; GB/T 9445; GB/T 12604.1; GB/T 18852; GB/T 20737; JB/T 8428; JB/T 9214
Regulation (derived from)	National Standard Approval Announcement 2008 No.12 (Total No.125)
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 method of ultrasonic testing and quality steel pipe circumferential butt welded joints of classification. This standard applies to the wall thickness is greater than or equal to 15mm ~ 120mm, 159mm nominal diameter greater than or equal to the ring of steel pressure pipe ultrasonic inspection butt welded joints. This standard does not apply to steel, austenitic stainless steel butt weld pipe fittings ring ultrasonic testing.

GB/T 15830-2008: Non-destructive testing -- Practice for ultrasonic testing of circumferential butt welds in steel pipes and tubes

---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.
Non-destructive testing. Practice for ultrasonic testing of circumferential butt welds in steel pipes and tubes ICS 19.100 J04 National Standards of People's Republic of China Replacing GB/T 15830-1995 Non-destructive testing of steel pipe girth weld Butt joints ultrasonic testing method Posted 2008-07-30 2009-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Preface Ⅰ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 testing organizations and personnel qualifications 1 5 detection system 6 2 process requirements and test preparation 7 detects 3 8 Quality rating 6 9 7 Test Report Appendix A (normative) method for measuring the amount of compensation 8 Annex B (informative) test reports and test records Format Example 9

Foreword

This standard replaces GB/T 15830-1995 "ring of steel pipe butt weld ultrasonic testing grade and test results." This standard and GB/T 15830-1995 compared to the main changes are as follows. --- Increased terms and definitions (see Chapter 3); --- Modify the testing organization and staff qualifications (1995 Edition Chapter 3; Chapter 4 of this edition); --- Adjusted Detection System (1995 Edition 4 and 5; Chapter 5 of this edition). Appendix A of this standard is a normative appendix, Appendix B is an informative annex. 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. Tianjin integrity of Metal Detection Technology Limited. The main drafters. Zhang Ping, Yan Dong column, Song Kui. This standard replaces the standards previously issued as follows. --- GB/T 15830-1995. Non-destructive testing of steel pipe girth weld Butt joints ultrasonic testing method

1 Scope

This standard specifies the method for ultrasonic testing and quality steel pipe girth butt welded joints classification. This standard applies to wall thickness greater than or equal to 15mm ~ 120mm, nominal diameter greater than or equal to 159mm of steel pressure pipe ring Butt welded joints ultrasonic testing. This standard does not apply to steel, austenitic stainless steel pipe ring ultrasonic testing butt welded 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 5616 NDT Applications Guide GB/T 9445 NDT personnel qualification and certification (GB/T 9445-2008, ISO 9712.2005, IDT) GB/T 12604.1 Terminology for nondestructive testing Ultrasonic testing (GB/T 12604.1-2005, ISO 5577.2000, IDT) GB/T 18852 Non-destructive testing - Ultrasonic examination measuring the contact probe beam characteristics Reference blocks and test methods (GB/T 18852- 2002, ISO 12715.1999, IDT) GB/T 20737 Non-destructive testing - General terms and definitions (GB/T 20737-2006, ISO /T S18173.2005, IDT) JB/T 8428 NDT ultrasonic testing with test block JB/T 9214 A pulse reflection type ultrasonic flaw detection system performance test method

3 Terms and Definitions

Terms and definitions GB/T 12604.1 and GB/T 20737 apply to this standard established.

4 testing organizations and personnel qualifications

4.1 Institutional Requirements According to the present embodiment standard testing agency or unit should be consistent with GB/T 5616 requirements or equivalent standards and regulations. 4.2 personnel qualifications Staff by implementation of this standard test, should be GB/T 9445 or contractual parties agreed system for Qualification and certification by the employer Master or agent job professional training and authorization to operate.

5 Detection System

5.1 Instrument 5.1.1 Detector performance should be the method JB/T 9214 provisions for testing, the operating frequency range of at least 1MHz ~ 5MHz. 5.1.2 The combination of sensitivity and instrument oblique probe reaches the workpiece is detected at the detection beam path, the effective sensitivity margin of not less than 10dB. 5.1.3 Resolution combination. should be able to JB/T 8428 on the CSK-IA test block 50mm separated from the reflected signal 44mm two holes, when

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