GB/T 21296.1-2020: Automatic instruments for weighing road vehicles in motion - Part 1: General technical specification

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Scope

This Part of GB/T 21296 specifies the terms and definitions, classification and naming,
measurement requirements, general technical requirements, production and installation
requirements, general requirements for installation conditions and maintenance, WIM system
functions and data requirements, test methods, inspection rules, as well as the requirements for
marking, packaging, transportation and storage of automatic instruments for weighing road
vehicles in motion (hereinafter referred to as: WIM weighing instruments).
This Part applies to the legally relevant applications and general applications of WIM weighing
instruments.
This Part applies to WIM weighing instruments or systems that are installed in the controlled
weighing area and adopt the principle of gravity to obtain the axle load (which can be directly
measured, or obtained by accumulating the separately measured wheel loads), axle-group load
and curb weight of road vehicles, regardless of the specific product structure and technical
implementation mode. WIM weighing instruments without the controlled weighing area may
take this Part as a reference.
This Part does not apply to weighing instruments or measuring systems, in which, there is no
relative movement of the load receptor or measuring device and the vehicle in the horizontal
driving direction during measurement, such as: static wheel load gauge and load measuring
device embedded in vehicle components, etc.
This Part does not apply to weighing instruments or measuring systems that cannot guarantee
that all tyres of the test vehicle and the upper surface of the load receptor are approximately on
the same plane during measurement (for example, products and systems that simply place the
load receptor on the road surface).
This Part does not apply to weighing instruments that merely measure the wheel load on one
side, and then, obtain the axle load, axle-group load and curb weight by multiplying.

Basic Data

Standard ID	GB/T 21296.1-2020 (GB/T21296.1-2020)
Description (Translated English)	Automatic instruments for weighing road vehicles in motion - Part 1: General technical specification
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	N13
Classification of International Standard	17.100
Word Count Estimation	68,684
Date of Issue	2020-11-19
Date of Implementation	2021-06-01
Older Standard (superseded by this standard)	GB/T 21296-2007
Quoted Standard	GB/T 191; GB/T 2423.3; GB/T 13384; GB/T 14250; GB/T 17626.2; GB/T 17626.3; GB/T 17626.4; GB/T 17626.5; GB/T 17626.6; GB/T 17626.11; GB/T 26389; ISO 7637-2; ISO 7637-3
Adopted Standard	OIML R134-2006, NEQ
Regulation (derived from)	National Standard Announcement No. 26 of 2020
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration
Summary	This standard specifies the terms and definitions, classification and naming, measurement requirements, general technical requirements, production and installation requirements, installation conditions and general maintenance requirements, WIM system functions and data requirements for dynamic road vehicle automatic weighing instruments (hereinafter referred to as WIM weighing instruments) , Test methods, inspection rules, and requirements for marking, packaging, transportation and storage. This standard applies to the legal and general applications of WIM weighing instruments. This standard is applicable to WIM scales or systems that are installed in the weighing control area and adopt the principle of gravity to obtain the axle load of road vehicles (which can be directly measured or obtained by the accumulation of the separately measured wheel loads), axle group load, and vehicle mass. , Regardless of its specific product structure and technical implementation. Dynamic vehicle automatic without weighing control zone