GB/T 12452-2022 in English

VALID

General principles of water balance test

Issued on:2022-07-11
Implemented on:2022-11-01
File Format:PDF
Delivery:Via email within 5 business days

Price(USD)： $310.00
$301.00

Standard No:	GB/T 12452-2022
Document status:	VALID
Title in English:	General principles of water balance test
Title in Chinese:	水平衡测试通则
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 5 business days
Issued on:	2022-07-11
Implemented on:	2022-11-01
Superseding:	GB/T 12452-2008 The general principles of water balance test in enterprises
ICS Classification:	17.120.01-Measurement of fluid flow in general
Professional Classification:	GB-National Standard
Related Keywords:	service industries water resources management module added series water volume test parameter water balance test introduction analysis application full water unit test water consumption model water distribution model
Related Topics:	water balance test water balance balance water Hengshui Preserved Equipment Test Form horizontal flux equilibrium contact angle water balance field water balance field Hengshui balance horizontal version Water Balance Test General Rules GB/T12452 GBT12452 GB/T 12452-2008 GB/T 12452-2022 Voltage balance monitoring Balanced detector noise floor Hospital water balance gb/t 12452-2008 General rules for enterprise water balance testing Use water to achieve water balance Dynamic balancing test judgment Water balance field standard National standard for hydraulic balance Introduction to water balance testing methods moisture drift balance Hengshui drinking water quality testing Hengshui container board Balanced detector indicator test Horizontal hose level measurement method gb/t 12452-90 balance test test gb/t 12452-2022 gb/t12452-2008 Dynamic balancing test gbt12452 gb/t12452-2022 Hengshui meat quality testing Refinery water balance test method gb/t12452

《GB/T 12452-2022水平衡测试通则》由TC442（全国节水标准化技术委员会）归口，主管部门为国家标准化管理委员会。

Introduction

Analysis of the core revisions of the new standard

Revision points	2022 version	2008 version	Impact of changes
Scope of application	Full water unit test	Limited to industrial enterprises	Applicability expanded by 200% for municipal and service industries
Water resources management module	Added series water volume test parameter	This element is not included	Improve the resolution of economic loss energy calculation of pipeline network

Core calculation formula optimization

The new version of the standard improves the water consumption model of the open circulation system and adds a new correction formula for the evaporation loss coefficient:

G=R×S×Δt

Wherein, the correction factor S value adopts the dynamic value mode of air temperature (see Table C.2 for details), among which the best experimental correction value at 35℃ reaches 1.8 times the accuracy of the recommended threshold.

Technical requirements for phased implementation

Recommendations for modified water management systems

Promote the grid layout of digital water metering, and implement the segmented calibration procedures for portable ultrasonic flowmeters
Establish a 3D water distribution model to achieve minute-level status synchronous feedback

Multi-dimensional water-saving benefit evaluation

Integrated evaluation indicators based on the logistics energy efficiency ratio (WER) framework
The benchmark value of the machinery manufacturing industry in 2022 will be increased by 32.6% compared with the 14th edition
Adaptive adjustment of the reuse factor calculation formula to compress the error tolerance by 42%

More samples: GB 50021-2001(2009) DL/T 5154-2012 QC/T 942-2021

Sample only — not a preview of GB/T 12452-2022

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