YS/T 999-2024 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
YS/T 999-2024	RFQ	ASK	3 days	(Capillary eddy current testing method for copper and copper alloys)	Valid
YS/T 999-2014	359	Add to Cart	3 days	Capillary tube of copper and copper alloy. eddy curent testing method	Obsolete

Basic data

Standard ID: YS/T 999-2024 (YS/T999-2024)
Description (Translated English): (Capillary eddy current testing method for copper and copper alloys)
Sector / Industry: Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard: H26
Classification of International Standard: 77.040.20
Date of Issue: 2024-10-24
Date of Implementation: 2025-05-01
Older Standard (superseded by this standard): YS/T 999-2014
Issuing agency(ies): Ministry of Industry and Information Technology
Summary: This standard specifies the method principle, general requirements, standard artificial defect sample tubes, inspection steps, evaluation of inspection results and inspection reports for through-type and rotary eddy current detection of copper and copper alloy capillaries. This standard applies to eddy current detection of copper and copper alloy capillaries with specifications of outer diameter 0.5mm~6.1mm and inner diameter 0.3mm~4.45mm.

YS/T 999-2014: Capillary tube of copper and copper alloy. eddy curent testing 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.
Capillary tube of copper and copper alloy. Eddy curent testing method ICS 77.040.20 H26 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

Foreword

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. 3.1 (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 defect. 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 ......

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