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GB/T 40115-2021 English PDF

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GB/T 40115-2021: Meters for irrigation water
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PDF similar to GB/T 40115-2021


Standard similar to GB/T 40115-2021

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Basic data

Standard ID GB/T 40115-2021 (GB/T40115-2021)
Description (Translated English) Meters for irrigation water
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard B91
Word Count Estimation 42,492
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 40115-2021: Meters for irrigation water

---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.
Meters for irrigation water ICS 65.060.35 CCSB91 National Standards of People's Republic of China Irrigation water meter (ISO 16399.2014, IDT) Released on 2021-05-21 2021-12-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

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" Drafting. The translation method used in this document is equivalent to ISO 16399.2014 "Irrigation Water Meters". The Chinese documents that have consistent correspondence with the normatively cited international documents in this document are as follows. ---GB/T 778.1-2018 Cold drinking water meters and hot water meters Part 1.Measurement requirements and technical requirements (ISO 4064-1. 2014, IDT) ---GB/T 778.2-2018 Drinking cold water meter and hot water meter Part 2.Test method (ISO 4064-2.2014, IDT) ---GB/T 1800.2-2020 Product Geometric Technical Specification (GPS) Linear Dimension Tolerance ISO Code System Part 2. Standard tolerance zone code and limit deviation table of holes and shafts (ISO 286-2.2010, MOD) ---GB/T 7307-2001 55° unsealed pipe thread (eqvISO 228-1.1994) ---GB/T 18688-2012 Test method for pressure loss of irrigation valve of agricultural irrigation equipment (ISO 9644.2008, IDT) ---GB/T 27418-2017 Measurement Uncertainty Evaluation and Expression (ISO /IEC Guide98-3.2008, MOD) This document has made the following editorial changes. ---Corrected the typographical error of the original international standard. Change the "ISO 4064-1.2005 5.8.3" mentioned in 5.6.3 to "ISO 4064-1. 6.5.1 in.2005". This document was proposed by China Machinery Industry Federation. This document is under the jurisdiction of the National Agricultural Machinery Standardization Technical Committee (SAC/TC201). Drafting organizations of this document. Ningbo Water Meter (Group) Co., Ltd., Ningbo Yaofeng Hydraulic Electric Co., Ltd., Ningbo Donghai Group Co., Ltd. Company, China Academy of Agricultural Mechanization Sciences, Fluid Machinery Engineering Technology Research Center of Jiangsu University, China Agricultural University, Xintian Technology Co., Ltd. Co., Ltd., National Agricultural Machinery Quality Supervision and Inspection Center, Tai'an Easy Meter Co., Ltd., Taishan Intelligent Manufacturing Industry Research Institute, Agriculture and Rural Areas The Ministry of Agricultural Machinery Test and Appraisal Station, and the Agricultural Mechanization Technology Development and Extension Station of the Ministry of Agriculture and Rural Affairs. The main drafters of this document. Wang Xinxin, Zhang Feng, Lin Zhiliang, Zhang Xiansheng, Dong Yunlei, Wang Yang, Yan Haijun, Fei Zhanbo, Zhao Qingliang, Zhao Liwei, Hou Yongsheng, Wang Youjun, Wei Fukui, Zhang Dongxu, Xu Feng, Cao Hongwei, Gao Jiangyong. Irrigation water meter

1 Scope

This document specifies the technical requirements and verification procedures for irrigation water meters (hereinafter referred to as water meters). This document does not consider the water quality used by the water meter. Nor does it consider design techniques used to measure the actual volume of hot or cold water flowing through a closed, full pipe. This document applies to Water meter indicating device. This document applies to water meters based on electricity or electronic principles, and also to those with electronic devices for measuring the actual volume flow of cold water. Water meter based on mechanical principles. This document proposes measurement requirements for electronic auxiliary devices attached to measurement control. Auxiliary devices in this document Is optional. However, some auxiliary devices related to water meter applications are stipulated in national or international regulations.

2 Normative references

The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to This document. ISO 228-1 Non-threaded sealing connection pipe thread Part 1.Dimensions, tolerances and markings (Pipethreads where pressure- tightjointsarenotmadeonthethreads-Part 1.Dimensions, tolerancesanddesignation) ISO 286-2 Geometrical Product Specification (GPS) ISO Linear Dimensional Tolerance Code System Part 2.Standards for Holes and Shafts Tolerance grade and limit deviation table [Geometricalproductspecifications(GPS)-ISO codesystemfortoleranceson linearsizes-Part 2.Tablesofstandardtoleranceclassesandlimitdeviationsforholesandshafts] ISO 4064-1.2005 Measurement of water flow in closed full pipelines. Drinking cold water meters and hot water meters. Part 1.Specification (Meas- urementofwaterflowinfulychargedclosedconduits-Metersforcoldpotablewaterandhotwater- Part 1.Specifications) ISO 4064-2.2005 Measurement of water flow in closed full pipelines. Drinking cold water meters and hot water meters Part 2.Installation requirements (Measurementofwaterflowinfulychargedclosedconduits-Metersforcoldpotablewaterandhot water-Part 2.Instalationrequirements) ISO 9644 Test Method for Pressure Loss of Irrigation Valves of Agricultural Irrigation Equipment (Agricultural Irrigation Equipment- Pressurelossesinirrigationvalves-Testmethod) ISO /IEC Guide 98-3 Measurement Uncertainty Part 3.Expression of Measurement Uncertainty (GUM1995) [Uncertainty ofmeasurement-Part 3.Guidetotheexpressionofuncertaintyinmeasurement(GUM.1995)]

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Watermeter A device used to continuously measure, store and display the volume of water flowing through the measuring sensor under measuring conditions. Note. The water meter includes at least a measuring sensor, a calculator (including an adjustment or correction device, if it exists), and an indicating device. The three devices can be placed in different external devices. Inside the shell.

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