GB/T 21296.3-2020: Automatic instruments for weighing road vehicles in motion - Part 3: Weighing axle loads

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Scope

This Part of GB/T 21296 specifies the terms and definitions, product model, metrological
requirements, product structural requirements, product technical requirements, installation and
maintenance requirements, test methods, inspection rules, as well as product marking,
packaging, transportation and storage of automatic instruments for weighing axle loads of road
vehicles in motion (hereinafter referred to as axle load weigher WIM).
This Part applies to automatic weighing instruments that adopt single or multiple load-bearing
devices that are installed in the controlled weighing area and flush with the road surface to
simultaneously or separately support the entire axle or axle-group being measured, so as to
measure the wheel load (if applicable), axle load and axle-group load (if applicable) of road
vehicles in motion to further obtain the curb weight. In accordance with different wheel-bearing
modes, the automatic weighing instruments can be divided into three types: wheel loads, single-
axle and axle-group. The load receptor of the axle load weigher WIMs can be a single load
receptor, or multiple load receptors. The axle load weigher WIMs used for other occasions may
take this as a reference in the implementation.
This Part does not apply to weighing instruments or measuring systems, in which, the load
receptor or measuring device does not have relative movement with the vehicle in the horizontal
direction during measurement, such as: static wheel load gauges and load measurement devices
embedded in vehicle components, etc.
This Part does not apply to weighing instruments or measuring systems, in which, the load
receptor is simply placed on the road surface, and cannot guarantee that all tyres of the vehicle
under test and the upper surface of the load receptor are approximately on the same plane during
weighing.
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 21296.3-2020 (GB/T21296.3-2020)
Description (Translated English)	Automatic instruments for weighing road vehicles in motion - Part 3: Weighing axle loads
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	N13
Classification of International Standard	17.100
Word Count Estimation	20,212
Date of Issue	2020-11-19
Date of Implementation	2021-06-01
Quoted Standard	GB/T 7551; GB/T 7724; GB/T 14250; GB/T 21296.1-2020; GB/T 26389; GB/T 28699; QB/T 1588.1; QB/T 1588.2; QB/T 1588.4
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, product models, measurement requirements, product structure requirements, product technical requirements, installation and maintenance requirements, test methods, and inspections of axle-loaded dynamic road vehicle automatic weighing instruments (hereinafter referred to as axle-loaded dynamic truck scales) Rules, as well as product marking, packaging, transportation and storage. This standard applies to the use of single or multiple load-bearing devices installed in the weighing control area and flush with the road surface to simultaneously or separately support the entire measured axle or axle group to measure the wheel load of a road vehicle (if applicable), Axle load, axle group load (if applicable), and automatic weighing instrument to obtain the weight of the whole vehicle. According to the different ways of loading the wheels, it can be divided into wheel-loaded type, single-axle type and axle group type. The axle load type dynamic truck scale carrier can be a single carrier, or