Standard No.:	GB/T 12548-1990
English Name:	Motor vehicles－Speedometer and odometer－Calibration method
Chinese Name:	汽车速度表,里程表检验校正方法
Chinese Classification:	T39    Instruments and test devices for vehicle
Professional Classification:	GB    National Standard
Issued by:	CSBTS
Issued on:	1990-1-2
Implemented on:	1991-9-1
Status:	superseded
Superseded by:	GB/T 12548-2016 Motor vehicles speedometer and odometer calibration method
Superseded on:	2017-1-1
Abolished on:	2017-01-01
Superseding:	GB 1334-1977
Language:	English
File Format:	PDF
Word Count:	2000 words
Price(USD):	80.00
Delivery:	via email in 1 business day

1 Subject Content and Application Scope

This standard specifies the calibration method of speedometer and odometer.

This standard is applicable to the calibration of speedometer and odometer of all kinds of motor vehicles.

2 Normative References

GB/T 12534 "Motor Vehicles-General Rules of Road Test Method"

3 Test Instruments and Equipment

a. Stopwatch; minimum reading 0.1s;

b. Surveyor's pole, steel tape

4 Test Conditions

4.1 The test vehicle state and the proving road shall meet the requirements of GB/T 12534.

4.2 The installation of speedometer, odometer and transmission shall meet the technical specification of manufacturing plants.