Standard No.:	GB/T 12544-2012
English Name:	Measurement of maximum speed of motor vehicles
Chinese Name:	汽车最高车速试验方法
Chinese Classification:	T41    Car
Professional Classification:	GB    National Standard
Source Content Issued by:	AQSIQ;SAC
Issued on:	2012-12-31
Implemented on:	2013-7-1
Status:	valid
Superseding:	GB/T 12544-1990 Motor vehicles-Maximum speed-Test method
Target Language:	English
File Format:	PDF
Word Count:	4000 words
Translation Price(USD):	80.0
Delivery:	via email in 1 business day

1 Scope This standard specifies the measurement of maximum speed of motor vehicles. This standard is applicable to all motor vehicles except electric vehicles. Combination vehicles may also refer to the provisions of this standard. 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 normative document (including any amendments) applies GB/T 12428 Laden Mass Calculating Method for Buses GB/T 12534 Motor Vehicles - General Rules of Road Test Method 3 Term and Definition For the purposes of this document, the following tem and definition apply. 3.1 Maximum speed The maximum stable speed the vehicle can maintain according to the specified test method. 4 Test Conditions 4.1 Vehicle conditions 4.1.1 Vehicles shall be clean, and the windows and ventilation devices in passenger compartment shall be shut down, unless otherwise specified.

Foreword I 1 Scope 2 Normative References 3 Term and Definition 4 Test Conditions 5 Test Methods 6 Test Result Appendix A (Normative) Specification for Determination of Correction Factor for Ring Road Appendix B (Normative) Calculation Formula for Air Density Appendix C (Normative) Test Record Sheet for Maximum Speed of Motor Vehicle