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YS/T 999-2014

Chinese Standard: 'YS/T 999-2014'
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YS/T 999-2014English209 Add to Cart Days<=3 Capillary tube of copper and copper alloy. eddy curent testing method Valid YS/T 999-2014
YS/T 999-2014Chinese16 Add to Cart <=1-day [PDF from Chinese Authority, or Standard Committee, or Publishing House]


Standard ID YS/T 999-2014 (YS/T999-2014)
Description (Translated English) Capillary tube of copper and copper alloy. eddy curent testing method
Sector / Industry Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard H26
Classification of International Standard 77.040.20
Word Count Estimation 9,972
Date of Issue 2014/10/14
Date of Implementation 2015/4/1
Quoted Standard GB/T 5248; GB/T 12604.6
Adopted Standard ASTM E243-2009, NEQ
Drafting Organization Suzhou Chun-destructive testing equipment Co., Ltd.
Administrative Organization National non-ferrous metals Standardization Technical Committee
Regulation (derived from) People's Republic of China Ministry of Industry and Information Technology Notice 2014 No. 63; Industry Standard Filing Notice 2014 No. 12 (Overall No. 180)
Issuing agency(ies) Ministry of Industry and Information Technology of the People's Republic of China
Summary This Standard specifies the copper and copper alloys capillary pass type eddy current method, comprising: terminology and definitions, principles and methods of eddy current testing, eddy current inspection system, manual standard sample tube defects, tes

YS/T 999-2014
Capillary tube of copper and copper alloy. Eddy curent testing method
ICS 77.040.20
People's Republic of China Nonferrous Metals Industry Standard
Copper and copper alloys capillary eddy current testing method
Issued on. 2014-10-14
2015-04-01 implementation
Ministry of Industry and Information Technology of the People's Republic of China released
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
The standard reference ASTME243-2009 "copper and copper alloy tube electromagnetic (eddy current) Detection" establishment.
This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) centralized.
This standard is drafted by. Suzhou Chun-NDT Equipment Co., Ltd. Wuxi Jin Longchuan Village tubules.
The main drafters. Zhang Ying, Zhang Hui, Wang Dongliang, Li Qingwen, Liu Jianzhong, Dingyu Jiang, CHEN Yong-guang, Wang Wei.
Copper and copper alloys capillary eddy current testing method
1 Scope
This standard specifies the copper and copper alloys capillary pass type eddy current method, comprising. terms and definitions, eddy current testing principles and methods,
Eddy current testing system, artificial standard sample tube defect, inspection step, evaluation, general requirements for testing personnel and test reports of testing results.
This standard applies to copper and copper alloys capillary specifications. diameter (Φ0.5 ~ Φ6.1) × an inner diameter (Φ0.3 ~ Φ4.45). Other regulations
Georgia capillaries can refer to these standards.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 5248 copper and copper alloy seamless pipe eddy current testing method
GB/T 12604.6 Terminology for nondestructive testing Eddy current testing
3 Terms and Definitions
The following terms and definitions GB/T 5248, GB/T 12604.6 terms and definitions apply to this document.
(Brass) plate straightening eddy current testing method straightenedtubeeddycurrenttesting
By electromagnetic induction in the brass surface and near surface eddy current principle, be set up in the final step of testing the brass plate straightening process
Testing methods.
4 Overview of principles and methods
4.1 Principle
When an alternating magnetic field with a detection coil tubing when approaching the subject in the pipe surface and near-surface eddy currents and the corresponding magnetic vortex
field. The role of the vortex magnetic field is weakening and offset excitation field. Weaken and counteract the subject depends on the physical properties of the pipe. Tubing deposit
Defects in these roles will change, causing the change in impedance of the detection coil. By the signal processing apparatus, the subject can be evaluated whether there tubing
4.2 Method
The pipe running through the eddy current testing is often subject tubing along its length one or more of the same excitation frequency detection coil wound
Group to carry out. The measurement coil winding resistance due to pipe size, conductivity, permeability and continuity of the metal pipe in metallurgical damage or mechanical processing
Workers defect changes. When the pipe through the detection coil, pipe these variables changes caused by electromagnetic induction to generate a signal through the instrument
The phase analysis, modulation analysis, signal processing, through sound and light alarm, mark, print and other means to make the recording.
4.3 Detection Sensitivity
Eddy current flaw detection sensitivity is based on the standard sample tube artificial defects equivalent size to be measured. Artificial defect size but should not be construed vortex
Related standard: YS/T 1000-2014    YS/T 585-2013
Related PDF sample: GB/T 5193-2020    GB/T 5777-2019