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GB/T 35389-2017 English PDF

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GB/T 35389-2017: Non-destructive testing -- X-ray digital radiography -- Guide
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Basic data

Standard ID GB/T 35389-2017 (GB/T35389-2017)
Description (Translated English) Non-destructive testing -- X-ray digital radiography -- Guide
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J04
Classification of International Standard 19.100
Word Count Estimation 18,150
Date of Issue 2017-12-29
Date of Implementation 2018-04-01
Regulation (derived from) National Standards Bulletin 2017 No. 32
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

GB/T 35389-2017: Non-destructive testing -- X-ray digital radiography -- Guide

---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 - X-ray digital radiography - Guide ICS 19.100 J04 National Standards of People's Republic of China Non-destructive testing X-ray digital imaging detection guidelines 2017-12-29 Posted 2018-04-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released Directory Preface Ⅰ Introduction Ⅱ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 symbol 1 5 Technical Features 2 6 testing equipment 3 7 Characteristic Analysis 5 8 image resolution 10 9 image SNR 12 10 image contrast 13 11 Image Quality 14

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard by the National Standardization Technical Committee nondestructive testing (SAC/TC56) and focal point. This standard drafting unit. Beijing solid Hong Technology Co., Ltd., Tsinghua University, Lanzhou Ricky Kidd Measurement and Control Technology Co., Ltd., China Ordnance Division Ningbo Branch of the Institute, Yantai Branch Branch Detection Equipment Co., Ltd., China Aviation Industry Beijing Aerospace Manufacturing Engineering Institute, Hubei Sanjiang Aerospace Jiangbei Machine Mechanical Engineering Co., Ltd., CITIC Daika Co., Ltd., Harbin Boiler Factory Co., Ltd., Chongqing University, China National Petroleum Corporation Company Pipe Research Institute, Chengdu Huayu Testing Technology Co., Ltd., Suzhou Industrial Park Road Green Technology Co., Ltd., Xi'an Aerospace Composite Materials Research Institute, Hangzhou Huaan NDT Technology Co., Ltd., China Institute of Engineering Physics Machinery Manufacturing Technology Institute, Guangdong Yingquan high-tech materials Limited. The main drafters of this standard. Xiao Yongshun, Sun Zhongcheng, Ni Peijun, Wang Jianhua, Song Zhenfang, Wang Xiaoyong, Wang Yuqiang, Gao Fengbin, Wang Jue, Xu Shengdong, Tang Liangming, Tao Weidao, Zhang Xinchun, Fang Fusheng, Tang Guangping, Li Yantao, Zeng Xiangzhao.

Introduction

From the early.1990s, X-ray digital imaging inspection technology began to be applied to the welds of pressure equipment, aerospace and aerospace Weld weld defects in the internal testing. At present, X-ray digital imaging detection technology has been widely used in aviation, aerospace, petroleum, chemical, Automotive, railway, electric power, machinery, pressure equipment and other industries weld quality testing. In the foundry industry, X-ray digital imaging inspection technology has become an essential test for the internal quality inspection of nonferrous metal castings and steel castings One of the means of measurement. With the development of automotive industry, X-ray digital imaging technology has good application prospects in automotive aluminum-magnesium alloy castings. With the development of large equipment manufacturing industry, X-ray digital imaging technology has good application prospect in the steel casting equipment. In the field of non-metallic materials, composite materials, for ceramic materials, honeycomb structural products, rubber products, resin-based molded products Department of quality testing, from a multi-angle product testing, is conducive to inclusion, cracks, delamination and structural defects detection and analysis. X-ray digital imaging detection technology can be used for pipe inspection with outer protective layer; Detection, transportation fluid pipe wall corrosion testing. Ammunition filling, cannonball fuses, high voltage switch contacts and other important devices assembly accuracy and structural integrity testing, is X-ray Digital imaging technology, an important application areas. Devices represented by micro-focus X-ray digital imaging systems are also widely used in the microelectronics industry. With the development of X-ray digital imaging technology, X-ray digital imaging technology has been widely used in logistics testing, mineral screening and cultural relics, archeology Other fields have good application prospects. Non-destructive testing X-ray digital imaging detection guidelines

1 Scope

This standard specifies the X-ray digital imaging detection of technical features, testing equipment, characterization, image resolution, image noise, image Contrast, image quality, technical application and other basic requirements. This standard applies to metal materials, non-metallic materials, composite materials and other products X-ray digital imaging detection guidance.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 12604.11 Terminology for non-destructive testing X-ray digital imaging test Nondestructive testing X - ray digital imaging detection system characteristics Nondestructive testing - X - ray digital imaging test methods

3 Terms and definitions

GB/T 12604.11 defined terms and definitions apply to this document.

4 symbol

The symbols used in this standard are shown in Table 1. Table 1 symbols and instructions Symbol Description a Full width at half maximum of the detector's point spread function in mm BW Full width at half maximum of point spread function in mm, in mm Full width at half maximum of point spread function in BW 'imaging plane in mm CSa contrast sensitivity CNR contrast to noise ratio CNRN normalized contrast-to-noise ratio CNRspN Normalized Contrast-to-Noise Ratio for Specific Micro-Thickness Differences d focus size, in mm DDA digital detector array F focal distance to the detector imaging plane, in mm f focus to be seized object surface distance in mm fps The number of image frames the detector outputs per second

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