GB/T 26594-2011 English PDF

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GB/T 26594-2011: Non-destructive testing instruments -- Properties test methods of industrial X-ray tube
Status: Valid

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Basic data

Standard ID: GB/T 26594-2011 (GB/T26594-2011)
Description (Translated English): Non-destructive testing instruments -- Properties test methods of industrial X-ray tube
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: N78
Classification of International Standard: 19.100
Word Count Estimation: 25,232
Date of Issue: 2011-06-16
Date of Implementation: 2011-11-01
Quoted Standard: GB/T 2421-1999; GB/T 25758.5-2010
Regulation (derived from): Announcement of Newly Approved National Standards No. 9 of 2011
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 requirements and test conditions for industrial X- ray tube (hereinafter referred to as X-ray tube) the technical parameters of the test conditions and test methods. This standard applies to all types of industrial X- ray tube (not including pulse).

GB/T 26594-2011: Non-destructive testing instruments -- Properties test methods of industrial X-ray tube

---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 instruments. Properties test methods of industrial X-ray tube ICS 19.100 N78 National Standards of People's Republic of China Nondestructive testing equipment X-ray tube performance test methods for industrial use Issued on. 2011-06-16 2011-11-01 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 Test Conditions 2 4.1 Test Equipment 2 4.2 Test Schematic 3 4.3 Test Rule 3 Test Method 4 5 5.1 filament characteristics Test 4 5.2 X-ray tube maximum working tube voltage test 4 5.3 X-ray tube maximum peak reverse voltage test 4 5.4 X-ray tube overvoltage test 4 Test 5.5 X-ray tube filament emission characteristics of 4 Test 5.6 X-ray tube anode current stability 4 5.7 X-ray tube 5 Maximum Power Test 5.8 X-ray tube effective focal spot size of the test 5 5.9 X-ray tube radiant energy flux density uniformity test 5 Test 5.10 X-ray tube X-ray dose rate of 5 5.11 X-ray tube inherent filtration test 5 5.12 X-ray tube spectral purity test 6 5.13 Test gated X-ray tube anode current cutoff characteristics 8 5.14 gated X-ray tube filament inter-gate voltage test 8 Appendix A (normative) Pinhole radiography 10 Appendix B (normative) Focus slit radiography 14 Annex C (informative) electrical schematic diagram 16 Permissible value Annex D (informative) focus nominal value of 20

Foreword

The Standard Appendix A, Appendix B normative appendix. The Standard Appendix C, Appendix D is an informative annex. The standard proposed by China Machinery Industry Federation. This standard by the National Standardization Technical Committee tester (SAC/TC122) centralized. This standard is drafted by. Liaoning Instrument Research Institute, Dandong Ronghua ray Instrument Co., Ltd., Shenzhen CTI Detection Technology CO., LTD. Participated in the drafting of this standard. Dandong NDT Equipment Co., Ltd., Dandong City NDT Instrument foolproof. The main drafters of this standard. Xu Bo, Rongji Ping, Qian Feng, Dong Diangang, Zhang. Nondestructive testing equipment X-ray tube performance test methods for industrial use

1 Scope

This standard specifies the requirements and test conditions for the technical parameters of industrial X-ray tube (hereinafter referred to as the X-ray tube) of the test strip Parts and test methods. This standard applies to all types of industrial X-ray tube (not including pulsed).

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 2421-1999 electric and electronic products environmental testing rules - Part 1. General GB/T 25758.5-2010 destructive testing of industrial X-ray system focus characteristics - Part 5. Focus small and micro-focus X-ray Measurement of the effective focal spot size of the pipe line

3 Terms and Definitions

The following terms and definitions apply to this standard. 3.1 Filament characteristics filamentcharacter Relationship between X-ray tube filament current and filament voltage. 3.2 Maximum operating tube voltage maximumworkingtubevoltage Since the half-wave rectifier circuit, X-ray tube anode rated current between the anode and cathode of the maximum allowed forward anode voltage Peak. 3.3 Maximum peak reverse voltage highestreversepeakvoltage X-ray tube anode current provisions, the maximum allowed withstand peak reverse voltage between the anode and the cathode. 3.4 Overvoltage overvoltage In the anode current and test time prescribed between the X-ray tube anode and cathode by adding a predetermined overvoltage coefficient determined Peak voltage. 3.5 Filament emission characteristics filamentemissioncharacter Under the given conditions of tube voltage, anode current and filament current (voltage) relationship between the X-ray tube. 3.6 Anode current stability stabilityofanodecurrent X-ray tube under specified operating conditions and within the stipulated time, the amount of the maximum anode current variation of the rated current value of the ratio of the anode. ......

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