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GB/T 39638-2020 English PDF

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US$499.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 39638-2020: X-ray digital radiographic testing for casting
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 39638-2020	499	Add to Cart	5 days	X-ray digital radiographic testing for casting	Valid

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Basic data

Standard ID: GB/T 39638-2020 (GB/T39638-2020)
Description (Translated English): X-ray digital radiographic testing for casting
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J31
Classification of International Standard: 77.040.20
Word Count Estimation: 27,268
Date of Issue: 2020-12-14
Date of Implementation: 2021-07-01
Quoted Standard: GB/T 5677; GB/T 9445; GB/T 12604.11; GB 18871; GB/T 23901.1; GB/T 23901.2; GB/T 23901.5; GB/T 30821; GB/T 35389; GB/T 35394; GBZ 98; GBZ 117
Regulation (derived from): National Standard Announcement No. 28 of 2020
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration
Summary: This standard specifies the classification and compensation rules, general requirements, inspection technology, image evaluation, inspection records and reports of the X-ray digital imaging inspection technology for castings using Digital Detector Array (DDA). This standard applies to castings of steel, iron, copper and copper alloys, nickel and nickel alloys, aluminum and aluminum alloys, magnesium and magnesium alloys, titanium and titanium alloys, and other metal material castings can also be used by reference.

GB/T 39638-2020: X-ray digital radiographic testing for casting

---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.
(X-ray digital imaging inspection of castings) ICS 77:040:20 J31 National Standards of People's Republic of China X-ray digital imaging inspection of castings 2020-12-14 release 2021-07-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Preface Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Symbol 3 5 Ordering instructions 4 6 Radiation inspection technology classification and compensation rules 4 7 General requirements 5 8 Testing technology 7 9 Image evaluation 19 10 Inspection records and reports 20 Appendix A (Normative Appendix) Minimum Image Quality Value 21

Foreword

This standard was drafted in accordance with the rules given in GB/T 1:1-2009: This standard was proposed and managed by the National Foundry Standardization Technical Committee (SAC/TC54): Drafting organizations of this standard: Shenyang Foundry Research Institute Co:, Ltd:, Lanzhou Rich God Measurement and Control Technology Co:, Ltd:, Changsha Dicastal Technology Co:, Ltd: Company, China Railway Baoqiao Group Co:, Ltd:, Shanghai Yirui Optoelectronic Technology Co:, Ltd:, Jinyun County Kelier Testing Equipment Co:, Ltd:, China Xindaikar Co:, Ltd:, Suzhou Industrial Park Daoqing Technology Co:, Ltd:, Chengdu Kessel Electronics Co:, Ltd:, Dandong Aolong Ray Instrument Group Co:, Ltd:, Shanghai Huizhong Automobile Manufacturing Co:, Ltd:, Shanghai Aerospace Precision Machinery Research Institute, Datang Boiler and Pressure Vessel Inspection Center have Co:, Ltd:, Lanzhou Lanshi Testing Technology Co:, Ltd:, Lanzhou Lanshi Group Co:, Ltd: Casting and Forging Branch, Chiping Xinfa Aluminum Products Co:, Ltd:, China The 52nd Research Institute of China North Industries Group: The main drafters of this standard: Li Xingjie, Sun Zhongcheng, Liu Jun, Yang Long, Lu Qifeng, Tao Weidao, Wang Xuebin, Wang Hanchao, Guo Zongshan, Wang Ji, Xu Xu, Ni Mansheng, Qiao Ridong, Sun Chungui, Dong Wenbo, Yu Han, Alateng, Luo Xiang, Kong Qingbo, Wei Quan, Liu Yingzhuo, Zhou Pengfei, Jiang Chunhong, Wang Bingzheng, Yang Wu, Li Yibin, Sun Pu, Wang Chen, Liu Feng, Guo Zhimin, Wu Fangming, Qiu Changchang, Zhang Zhouxu: X-ray digital imaging inspection of castings

1 Scope

This standard specifies the classification and compensation rules of X-ray digital imaging detection technology for castings using Digital Detector Array (DDA), general Requirements, inspection technology, image evaluation, inspection records and reports, etc: This standard applies to the casting of steel, iron, copper and copper alloys, nickel and nickel alloys, aluminum and aluminum alloys, magnesium and magnesium alloys, titanium and titanium alloys, etc: Parts, other metal material castings can also be used as reference:

2 Normative references

The following documents are indispensable for the application of this document: For dated reference documents, only the dated version applies to this article Pieces: For undated references, the latest version (including all amendments) applies to this document: GB/T 5677 Casting radiographic inspection GB/T 9445 Non-destructive testing personnel qualification and certification GB/T 12604:11 Non-destructive testing terminology X-ray digital imaging testing GB 18871 Basic standard for ionizing radiation protection and radiation source safety GB/T 23901:1 Non-destructive testing: Radiographic testing of image quality: Part 1: Determination of image quality value of silk-type image quality indicator GB/T 23901:2 Non-destructive testing: Radiographic testing of image quality: Part 2: Determination of image quality value of step hole image quality indicator GB/T 23901:5 Non-destructive testing: Radiographic testing of image quality: Part 5: Double-filament image quality indicators with unclear images Determination GB/T 30821 Non-destructive testing digital image processing and communication GB/T 35389 Non-destructive testing X-ray digital imaging testing guidelines GB/T 35394 Non-destructive testing X-ray digital imaging testing system characteristics GBZ 98 Health requirements for radiation workers GBZ 117 Industrial X-ray inspection radiation protection requirements

3 Terms and definitions

The following terms and definitions defined in GB/T 12604:11 apply to this document: 3:1 Nominalthickness The nominal wall thickness of the material, regardless of deviation: 3:2 Penetratedthickness The nominal thickness of the material in the radiographic direction: In the case of multi-wall transillumination, the penetration thickness is the sum of the nominal thickness of each layer of material passed through: 3:3 The distance from the workpiece to the detector objecttoDDAdistance The distance between the surface of the inspected workpiece at the source side and the detector measured along the centerline of the ray beam: ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 39638-2020_English be delivered?

Answer: Upon your order, we will start to translate GB/T 39638-2020_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 39638-2020_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 39638-2020_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.