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CJ/T 525-2018 English PDF

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CJ/T 525-2018: Leak detector of water distribution system
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PDF similar to CJ/T 525-2018


Standard similar to CJ/T 525-2018

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Basic data

Standard ID CJ/T 525-2018 (CJ/T525-2018)
Description (Translated English) Leak detector of water distribution system
Sector / Industry Urban Construction Industry Standard (Recommended)
Classification of Chinese Standard P41
Classification of International Standard 91.140.60
Word Count Estimation 9,991
Date of Issue 2018-03-08
Date of Implementation 2018-10-01
Quoted Standard GB/T 191; GB 4208; GB 4793.1-2007; GB/T 6587; GB/T 20485.31-2011
Regulation (derived from) Ministry of Housing and Urban-Rural Development Announcement No. 1861 of 2018
Issuing agency(ies) Ministry of Housing and Urban-Rural Development of the People's Republic of China

CJ/T 525-2018: Leak detector of water distribution system

---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.
Leak detector of water distribution system ICS 91.140.60 P41 People's Republic of China urban construction industry standards Water supply network leak detection leak detector Published on.2018-03-08 2018-10-01 implementation Ministry of Housing and Urban-Rural Development

Content

Foreword I 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 General requirements 2 5 Requirements 2 6 Test method 3 7 Inspection rules 4 8 Marking, packaging, transportation and storage 5

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the Institute of Standardization of the Ministry of Housing and Urban-Rural Development. This standard is under the jurisdiction of the Municipal Water Supply and Drainage Standardization Technical Committee of the Ministry of Housing and Urban-Rural Development. This standard is drafted by. Beijing Edel Weiwei New Technology Co., Ltd. Participated in the drafting of this standard. Yangzhou Jietong Water Supply Technology Equipment Co., Ltd., China Urban Construction Research Institute Co., Ltd., China City Planning Association Underground Pipeline Professional Committee, Beijing Water Supply Group Co., Ltd., Fuzhou Water Supply Co., Ltd., Dezhou Water Supply head office. The main drafters of this standard. Yang Yuexian, Yan, Gao Wei, Sun Jie, Wang Weiwei, Chen Guoqiang, Liu Huizhong, Zhao Shunping, Zheng Wenfang, Pan Xingzhong, Feng Xingfang, Kong Deming, Chen Yongjiang. Water supply network leak detection leak detector

1 Scope

This standard specifies the terms and definitions of the water supply pipe network leak detection leak detector, general requirements, requirements, test methods, inspection rules, signs, Packaging, transportation and storage. This standard is applicable to the manufacture and inspection of leak detectors for leak detection of pressure pipes with water transporting medium.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 191 packaging storage and transportation icon GB 4208 enclosure protection grade (IP code) GB 4793.1-2007 Safety requirements for electrical equipment for measurement, control and laboratory - Part 1. General requirements GB/T 6587 General specification for electronic measuring instruments GB/T 20485.31-2011 Methods of calibration of vibration and shock sensors - Part 31. Lateral vibration sensitivity test

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Leak detector leakdetector An instrument used to detect leaks in pressure piping. 3.2 Pickup microphone A sound absorbing device that collects a water leakage signal of a pressure pipe and converts it into an electrical signal is mainly composed of a transducer and an amplifying circuit. 3.3 Host control unit A device that processes, stores, outputs, displays, and controls electrical signals converted by a pickup. 3.4 Signal gain signalgain The host adjusts the electrical signal input to the pickup. 3.5 Volume volume The host adjusts the power of the output to the headphone signal. 3.6 Frequency range The range of the lowest frequency and highest frequency at which the pickup can acquire the signal at the lowest sensitivity.

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