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GB/T 26833-2011 English PDF

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GB/T 26833-2011: Non-destructive testing instruments -- General specification for X-ray tube for industrial detecting
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Basic data

Standard ID GB/T 26833-2011 (GB/T26833-2011)
Description (Translated English) Non-destructive testing instruments -- General specification for X-ray tube for industrial detecting
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard N78
Classification of International Standard 19.100
Word Count Estimation 18,191
Date of Issue 2011-07-29
Date of Implementation 2011-12-01
Quoted Standard GB/T 191; GB/T 2829; GB/T 13384; JB/T 9329
Regulation (derived from) Announcement of Newly Approved National Standards No. 12 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 industrial X-ray tube (hereinafter referred to as X-ray tube) technical requirements, inspection rules, test methods, marking, packaging, transportation, storage and so on. This standard applies to the following tube voltage 500kV X-ray tube.

GB/T 26833-2011: Non-destructive testing instruments -- General specification for X-ray tube for industrial detecting


---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. General specification for X-ray tube for industrial detecting ICS 19.100 N78 National Standards of People's Republic of China Nondestructive testing equipment Industrial X-ray tube general technical conditions Issued on. 2011-07-29 2011-12-01 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 Requirements 1 3.1 Conditions 1 3.2 Technical performance 1 3.3 Stability of 2 3.4 appearance quality and structure 2 3.5 effective beam angle 2 4 Test Method 3 4.1 Test conditions 3 4.2 Main test instruments and appliances 3 4.3 X-ray tube inspection 3 4.4 current stability test 3 4.5 X-ray tube continuously test 3 4.6 filament properties were measured 3 4.7 X-ray tube voltage test over 3 4.8 Determination of focal spot size 3 4.9 Determination of the effective beam angle 3 4.10 Test cap fixed degree 4 The mechanical strength of over 4.11 stranded wire test 4 4.12 Thermal stability test 4 4.13 4 cathode and anode checking concentricity 4.14 low temperature, high temperature and humidity environmental test 4 4.15 Mechanical strength test 5 Measured 4.16 X-ray dose rate of the initial value of 5 4.17 Life Test 5 5 5 Inspection Rules 5.1 factory inspection 5 5 5.2 Type test 5.3 Life Test 6 5.4 sampling method, the group of samples and determined that Rule 6 6 signs, packaging, transportation and storage 7 6.1 mark 7 6.2 Packaging 7 6.3 Transportation and storage 8 Appendix A (normative) Pinhole radiographic 9 Appendix B (normative) rms measurement focus 13

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. 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., Dandong City NDT equipment Limited. Participated in the drafting of this standard. Shanghai superior NDT Instrument Co., Ltd., Dandong City NDT Instrument foolproof. The main drafters of this standard. Yang Chunyan, Rongji Ping, Wu Yifang, Dong Diangang, Zhang. Nondestructive testing equipment Industrial X-ray tube general technical conditions

1 Scope

This standard specifies the technical requirements for industrial X-ray tube (hereinafter referred to as the X-ray tube), and inspection rules, test methods, marking, packaging, Transport, storage and so on. This standard applies to the following tube voltage 500kV X-ray tube.

2 Normative references

The following documents for the application of this document is essential. For dated references. Dated version only suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 191 Packaging - Pictorial signs GB/T 2829 periodic inspection Sampling procedures and tables (for testing the stability of the production process) GB/T 13384 mechanical and electrical products packaging General technical conditions JB/T 9329 Instrumentation transport, transportation, storage and basic environmental conditions and test methods

3 Requirements

3.1 Conditions of Use X-ray tube under the following conditions should be working properly. a) altitude does not exceed 1000m; b) Ambient temperature -10 ℃ ~ 40 ℃ (water-cooled X-ray tube ambient temperature 2 ℃ ~ 40 ℃); c) air relative humidity less than 85%; d) power supply voltage is 220 × (1 ± 10%) V. 3.2 Technical Performance Filament characteristics 3.2.1 X-ray tube. Filament voltage X-ray tube filament current product shall comply with the specific documentation requirements, when the filament current Standard products specified value ± 10% tolerance for the maximum filament voltage of a predetermined value. 3.2.2 X-ray tube voltage is 0.3 times the rated tube when the tube current of the X-ray tube should be able to reach the rated value. 3.2.3 X-ray tube should over voltage test in Table 1 which provides that no discharge and flicker. Table 1 overvoltage test Rated tube voltage kV Over rated Tube voltage percentage duration min Direct forced circulation indirect cooling forced circulation cooling Anode current < 200 ≥200 and < 300 ≥300 80% of the rated current anode tube

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