Standard No.:	GB/T 12673-2019
Chinese Name:	汽车主要尺寸测量方法
English Name:	Motor vehicle main dimensions measurement method
Professional Classification:	T04 Basic standards and general methods
ICS Classification:	43.020
Issued by:
Issued on:	2019-10-18
Implemented on:	2020-05-01
Status:	VALID
Replace:	GB/T12673-1990 Motor vehicles－Basic dimensions－Measuring method
Language:	English
File Format:	PDF
Word Count:	38000 words
Price(USD):	1140 (USD)
Delivery:	via email in 1-8 business day

1 Scope

This standard specifies the measurement methods for motor vehicle main dimensions.

The measurement methods for external dimensions and luggage compartment/cargo dimensions specified in this standard are applicable to Categories M and N vehicles. It may also serve as a reference for other vehicles.

The measurement methods for internal dimensions specified in this standard are applicable to Category M1 vehicles. It may also serve as a reference for other vehicles.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

GB 1589 Limits of dimensions, axle load and masses for motor vehicles, trailers and combination vehicles
GB/T 3730.2 Road vehicle - Masses - Vocabulary and codes
GB/T 3730.3-1992 Motor vehicles and towed vehicles - Dimensions of vehicles - Terms and definitions
GB/T 19514 Passenger cars - Luggage compartments - Method of measuring reference volume
GB/T 29120-2012 Procedure for H-point and R-point determination

3 Terms and definitions

For the purposes of this document, the terms and definitions given in GB 1589, GB/T 3730.2, GB/T 3730.3-1992, GB/T 29120-2012 as well as the following apply. For the convenience of application, some terms and definitions specified in GB/T 29120-2012 are listed below.

3.1
vehicle coordinate system
system composed of three vertical orthogonal planes that are interrelated, which is used to determine the positional relation of planes, axes and points, as shown in Figure 1
... ...
... ...
3.1.1
zero Y-plane
longitudinal symmetry plane of vehicle specified in 2.4, GB/T 3730.3-1992

3.1.2
zero X-plane
plane perpendicular to the zero Y-plane specified by the manufacturer

3.1.3
zero Z-plane
plane perpendicular to the zero Y-plane and zero X-plane specified by the manufacturer

3.1.4
Y-plane
plane parallel to the zero Y-plane

3.1.5
X-plane
plane parallel to the zero X-plane

3.1.6
Z-plane
plane parallel to the zero Z-plane

3.1.7
X-axis direction
direction parallel to the normal of X-plane

3.1.8
Y-axis direction
direction parallel to the normal of Y-plane