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GB/T 35392-2017 English PDF

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GB/T 35392-2017: Non-destructive testing -- Test method for determining electrical conductivity using the electromagnetic (eddy-current) method
Status: Valid
Standard IDUSDBUY PDFLead-DaysStandard Title (Description)Status
GB/T 35392-2017199 Add to Cart 3 days Non-destructive testing -- Test method for determining electrical conductivity using the electromagnetic (eddy-current) method Valid

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Basic data

Standard ID: GB/T 35392-2017 (GB/T35392-2017)
Description (Translated English): Non-destructive testing -- Test method for determining electrical conductivity using the electromagnetic (eddy-current) method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J04
Classification of International Standard: 19.100
Word Count Estimation: 10,118
Date of Issue: 2017-12-29
Date of Implementation: 2018-04-01
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 35392-2017: Non-destructive testing -- Test method for determining electrical conductivity using the electromagnetic (eddy-current) method


---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-Test method for determining electrical conductivity using the electromagnetic (eddy-current) method ICS 19.100 J04 National Standards of People's Republic of China Non-destructive testing Conductivity electromagnetic (eddy current) determination conductivityusingtheelectromagnetic (eddy-current) method 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

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 was drafted unit. Edson (Xiamen) Electronics Co., Ltd., Nanchang Aviation University, Beijing Institute of Aeronautical Materials, the country's nuclear power plant operation Service Technology Co., Ltd., Air Force Institute of Equipment Institute of Aviation, Xiamen University, Xi'an Jiaotong University. The main drafters of this standard. Lin Junming, Song Kai, Xu North, Ye Chen, Lei Hong, Eric Tsang, Chen Zhenmao, Fu Gangqiang. Non-destructive testing Conductivity electromagnetic (eddy current) determination

1 Scope

This standard specifies the use of electromagnetic (eddy current) technology to determine non-ferromagnetic metal conductivity method. This standard applies to direct reading of conductivity values of the instrument does not apply to the direct conductivity of the eddy current instrument can not provide readings. This standard applies to uncoated or thin non-conductive coating of flat or micro-curved surface metal. This standard can be used for metal sorting, the factors that affect the sorting results include the type of alloy, aging, cold deformation, heat treatment, uneven heating or Overheating and corrosion. Note. Conductivity is generally expressed as a percentage of the international standard of annealed copper conductivity when measured by eddy current instruments. International annealing of copper at 20 ℃ Conductivity was 0.58 × 108 S/m, defined as 100% IACS.

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 9445 non-destructive testing personnel qualification and certification GB/T 12604.6 non-destructive testing term eddy current testing

3 Terms and definitions

GB/T 12604.6 defined and the following terms and definitions apply to this document. 3.1 Conductivity temperature coefficient temperaturecoefficientofconductivity Temperature change Conductivity fraction or percentage change per degree Celsius.

4 purpose

4.1 When used with standard test blocks of known conductivity values, the absolute coil method is used to determine the conductivity of non-ferromagnetic materials. 4.2 When using the conductivity of the test block combined with electromagnetic (eddy current) technology can be measured. a) metal or alloy composition; b) Type of heat treatment (for aluminum, this method should be used together with hardness measurement); c) the degree of aging of the alloy; d) Corrosion effects; e) Thermal damage.

5 limitations

5.1 Test results in 4.2 depend on the amount of change in conductivity caused by the relevant variables. If the conductivity is greatly affected by the relevant variables,
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