GB/T 12966-2022 English PDF

US$539.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 12966-2022: The methods for determining aluminium and aluminium alloys conductivity using eddy current
Status: Valid

GB/T 12966: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 12966-2022	539	Add to Cart	5 days	The methods for determining aluminium and aluminium alloys conductivity using eddy current	Valid
GB/T 12966-2008	479	Add to Cart	3 days	The method for determining aluminum alloys conductivity using eddy current	Obsolete
GB/T 12966-1991	359	Add to Cart	3 days	The method for electrical conductivity measurement of aluminium alloys by use of eddy current	Obsolete

Similar standards

GB/T 8754   GB/T 2975   GB/T 32186   GB/T 12967.4   GB/T 12967.3   

Basic data

Standard ID: GB/T 12966-2022 (GB/T12966-2022)
Description (Translated English): The methods for determining aluminium and aluminium alloys conductivity using eddy current
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H20
Word Count Estimation: 27,298
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 12966-2022: The methods for determining aluminium and aluminium alloys conductivity using eddy current

---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.
The methods for determining aluminium and aluminium alloys conductivity using eddy current ICS 19.100 CCSH20 National Standards of People's Republic of China Replacing GB/T 12966-2008 Eddy current test method for electrical conductivity of aluminum and aluminum alloys Published on 2022-03-09 2022-10-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" drafted. This document replaces GB/T 12966-2008 "Eddy Current Test Method for Electrical Conductivity of Aluminum Alloys". In addition to structural adjustments and editorial changes, the main technical changes are as follows. a) changed the scope (see Chapter 1, Chapter 1 of the.2008 edition); b) Deleted "Eddy Current", "Effective Penetration Depth", "Standard Penetration Depth", "lift-off effect", "edge effect", "instrument sensitivity" and "instrument stability". "Qualitative", "lift-off inhibition", "direct test", "correction test", "correction coefficient" terms (see Chapter 3, Chapter 3 of the.2008 edition); c) Changed the test range of the eddy current conductivity meter (see 4.3.1.2, 5.2.2 of the.2008 edition); d) Increased the stability of the conductivity meter running for 30min (see 4.3.1.4); e) Added standard test block (see 4.3.2); f) Added the minimum test thickness for the calculation formula of eddy current standard penetration depth and typical conductivity value (see 4.4.1.5); g) Added non-contact test method (see Chapter 5); h) Added period verification (see Appendix A); i) Added the test method for narrow material (see Appendix B); j) The specimens for surface correction test are added (see C.1); k) Added SigmatestD2.069 and SigmascopeSMP350 conductivity meter correction table (see Appendix D); l) The revised test method for clad aluminum samples is added (see Appendix F); m) Added non-conductive coating correction test method (see Appendix G). Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China Nonferrous Metals Industry Association. This document is under the jurisdiction of the National Nonferrous Metals Standardization Technical Committee (SAC/TC243). This document is drafted by. Northeast Light Alloy Co., Ltd., Southwest Aluminum (Group) Co., Ltd., Shandong Nanshan Aluminum Co., Ltd. Co., Ltd., Nonferrous Metals Technology and Economic Research Institute Co., Ltd., Guangxi Nannan Aluminum Processing Co., Ltd., Liaoning Zhongwang Group Co., Ltd., China Aluminum Material Application Research Institute Co., Ltd., Fujian Nanping Aluminum Co., Ltd., Youyan Engineering Technology Research Institute Co., Ltd., Shandong Yan Mining Light Alloy Co., Ltd., National Standard (Beijing) Inspection and Certification Co., Ltd., Northwest Aluminum Co., Ltd., Guangdong Academy of Sciences Industrial Analysis and Inspection Testing Center, Guangxi Liuzhou Yinhai Aluminum Co., Ltd. The main drafters of this document. Zhang Xiaoxia, Wang Hongyu, Jin Chenglong, Ge Lixin, Gao Xinyu, Zheng Xu, Han Shitao, Xiong Xiaobo, Liu Kewei, Huo Qingli, Wei Shaolin, Liu Quanquan, Li Yanan, Liu Hao, Jin Yujia, Liu Xuming, Guo Li, Wu Zhenyu, Zhu Kai, Qiu Hongwei, Zhang Yu, Sui Xinhui. The previous versions of this document and its superseded documents are as follows. ---First published in.1991 as GB/T 12966-1991, first revised in.2008; ---This is the second revision. Eddy current test method for electrical conductivity of aluminum and aluminum alloys

1 Scope

This document specifies a method for the determination of the electrical conductivity of aluminium and its aluminium alloys by contact or non-contact. This document applies to the eddy current test of the electrical conductivity of aluminum and aluminum alloy materials.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. GB/T 12604.6 Nondestructive Testing Terminology Eddy Current Testing JJF1516 Non-ferromagnetic metal conductivity sample (standard) calibration specification

3 Terms and Definitions

GB/T 12604.6 as well as the following terms and definitions apply to this document. 3.1 Measurement accuracy The difference between the measured value obtained by the eddy current conductivity meter testing the conductivity standard test block and the conductivity value of the standard test block under the given conditions.

4 Contact test method

4.1 Principle When a coil carrying an alternating current of a certain frequency and amplitude approaches the surface of the conductor, the alternating magnetic field generated by the alternating current in the coil is in the conductor. Eddy currents are induced on the surface and near the surface, and the magnetic field of the eddy current reacts to the coil. conductivity is related. According to this principle, the eddy current conductivity meter can be calibrated with a standard test block with known conductivity value, and the true conductivity value of the sample can be directly measured. When the size, shape or surface state of the sample causes the measured value of conductivity to deviate greatly from the actual value, after the user agrees, the sample stacking can be used. The relationship between the actual value of the conductivity and the test value can be obtained by comparing the plane with the curved surface or removing the surface state, so as to analyze the measured data of the conductivity. Compensation is performed, and the test result after compensation is used as the true value of conductivity. 4.2 Test Conditions 4.2.1 The test site should be a non-corrosive environment, avoiding direct sunlight and no electromagnetic field interference. 4.2.2 The temperature of the test environment should not fluctuate greatly. 4.2.3 The testers should have the basic knowledge of eddy current, be familiar with special technical documents, have practical operation training and pass the internal evaluation of the enterprise. Available for work. ......

Image     

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 12966-2022_English be delivered?

Answer: Upon your order, we will start to translate GB/T 12966-2022_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 12966-2022_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 12966-2022_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.

Question 5: Should I purchase the latest version GB/T 12966-2022?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 12966-2022 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.