JJF 1168-2007

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Related Standard	Status	PDF
JJF 1168-2007	English	329	Add to Cart	3 days	Calibration Specification for Portable Braking Performance Tester for Motor Vehicle	JJF 1168-2007	Valid	JJF 1168-2007

JJF 1168-2007
Calibration Specification for Portable Braking Performance Tester for Motor Vehicle
People's Republic of China National Metrology Technical Specifications
Portable brake performance tester calibration specification
Posted 2007-02-28
2007-05-28 implementation
The State Administration of Quality Supervision, Inspection and Quarantine released
Portable brake performance tester
Calibration Specification
Braking
This specification by the State Administration of Quality Supervision, Inspection and Quarantine approved on February 28, 2007, and from
From May 28, 2007 implementation.
Focal point. the National Technical Committee of Legal Metrology measurement management
Main drafting unit. Zhejiang Institute of Metrology
Ministry of Public Security Traffic Safety Product Quality Supervision and Inspection Center
Wenzhou Jiang Xing Automobile testing equipment factory
China Metrology Association Detection Technology Working Committee metering motor vehicles
Participated in the drafting unit. Gansu Province Institute of Metrology
Academy of Transportation Sciences
This specification shall be interpreted by the focal point
The main drafters of this specification.
Jin Yan (Zhejiang Institute of Metrology)
Should Chaoyang (Ministry of Public Security Traffic Safety Product Quality Supervision and Inspection Center)
Zhoushen Sheng (Wenzhou Xing Jiang Automobile testing equipment factory)
Baoguo Hua (China Metrology Association of Motor Vehicle measurement test Technical Committee)
Drafters participate.
High Decheng (Gansu Province Institute of measurement)
Zhou Zhengming (Academy of Transportation Sciences)
table of Contents
1 Scope (1)
2. Referenced Documents (1)
3 terminology and units of measurement (1)
4 Overview (1)
5 Metrological characteristics (1)
5.1 Appearance (1)
5.2 portable brake performance tester measuring range (1)
5.3 basic error (1)
5.4 Data Retention (2)
Calibration Condition 6 (2)
6.1 environmental conditions (2)
6.2 Standard device and other equipment (2)
7 calibration items and calibration methods (2)
7.1 portable brake performance tester static calibration (2)
7.2 portable brake performance tester dynamic calibration (4)
7.3 Data Retention (5)
8 calibration results expression (5)
9 Recalibration interval (5)
Uncertainty Analysis Appendix A calibrated portable brake performance tester indication error measurement results (6)
Appendix B calibration certificate contents (9)
Portable brake performance tester calibration specification
1 Scope
This standard applies to portable brake performance tester calibration.
This specification provides the portable brake performance tester performance measurement and calibration methods.
2 Citations
GB 7258-2004 the safe operation of motor vehicles technical conditions
JJF 1059-1999 Evaluation and Expression of Uncertainty in Measurement
GA/T 485-2004 portable brake performance tester
Use this code should pay attention to using the currently valid version of the documents cited.
3 terminology and units of measurement
3.1 portable brake performance tester portablebrakingperformancetesterforvehicles
By the time history record of the vehicle during braking deceleration value by the deceleration sensor output calculated speed
Degrees, after the distance calculated to get in line with GB 7258-2004 "safe operation of motor vehicles technical conditions" requirement of full
The average deceleration (MFDD) issued and braking time coordination instruments, mainly used for automobile brake test
performance.
3.2 Unit measurementunit
The portable unit of measure brake performance tester for m/s2.
4 Overview
Portable brake performance tester deceleration sensor is normally provided by the host, the brake pedal contact switch and micro-play
Printers and other components. According to the instructions provided portable brake performance tester placed in the subject vehicle, connected to the brake pedal
Contact switch and make the necessary settings; when the vehicle is accelerated to a predetermined spe