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JJF 1551-2015: Calibration Specification for Adhesion Coefficient Testers
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| JJF 1551-2015 | English | 369 |
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Calibration Specification for Adhesion Coefficient Testers
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JJF 1551-2015
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Basic data | Standard ID | JJF 1551-2015 (JJF1551-2015) | | Description (Translated English) | Calibration Specification for Adhesion Coefficient Testers | | Sector / Industry | Metrology & Measurement Industry Standard | | Classification of Chinese Standard | A53 | | Classification of International Standard | 17.100 | | Word Count Estimation | 16,120 | | Date of Issue | 2015-12-07 | | Date of Implementation | 2016-03-07 | | Quoted Standard | JJG 906; JJG 1020; GB 518; GB/T 2983; GB 7258; GB/T 13563; GB/T 13564; GB 21861 | | Regulation (derived from) | ?AQSIQ 2015 Nian (No.148) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine | | Summary | This standard applies to the calibration of the powder coefficient tester. | JJF 1551-2015: Calibration Specification for Adhesion Coefficient Testers---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Calibration Specification for Adhesion Coefficient Testers
National Metrological Technical Code of the People's Republic of China
Adhesion Coefficient Tester Calibration Specification
2015-12-07 released
2016-03-07 implementation
State Administration of Quality Supervision, Inspection and Quarantine issued
Adhesion Coefficient Tester Calibration Specification
Responsible unit. National legal system management metrology technical committee
The main drafting unit. Gansu Institute of Metrology
Zhejiang Jiangxing Automobile Testing Equipment Co., Ltd
Xiamen City, the measurement test test hospital
Participated in the drafting unit. Foshan Analyst Co., Ltd.
Fujian Institute of Metrology
This specification entrusts the National Legal Metrology Management Metrology Technical Committee to explain
The main drafters of this specification.
Gao Decheng (Gansu Institute of Metrology)
Zhou Shensheng (Zhejiang Jiangxing Automobile Testing Equipment Co., Ltd.)
Jiang Tao (Xiamen City Metrology and Testing Institute)
Participate in the drafters.
Xie Zhimin (Gansu Institute of Metrology)
He Guihua (Foshan Analyst Co., Ltd.)
Wang Chaoyang (Fujian Institute of Metrology)
He Yinxia (Gansu Institute of Metrology)
table of Contents
Introduction (II)
1 Scope (1)
2 References (1)
3 terms and units of measurement (1)
3.1 Adhesion (1)
3.2 adhesion coefficient (1)
3.3 Vertical load of wheel (1)
3.4 Roller sliding adhesion coefficient (1)
4 Overview (1)
5 Metrological characteristics (2)
5.1 Vertical load of wheel (2)
5.2 Coefficient of adhesion (2)
6 Calibration conditions (3)
6.1 Environmental conditions (3)
6.2 Calibration standard (3)
7 Calibration items and calibration methods (3)
7.1 Wheel vertical load (3)
7.2 Adhesion coefficient (4)
8 Expression of calibration results (5)
9 re-school time interval (5)
Appendix A Adhesion Coefficient Tester Instrument Tire Selection (6)
Appendix B Calibration Certificate Inside Page Format (7)
Appendix C Adhesion Coefficient Tester Calibration Record (8)
Appendix D adhesion coefficient tester adhesion coefficient indication error measurement uncertainty assessment (9)
Introduction
This specification to JJF 1071-2010 "national measurement calibration standard preparation rules", JJF 1001-2011 "General
Metrological Terms and Definitions ", JJF 1059.1-2012" Measurement Uncertainty Assessment and Representation "as a basic series of specifications
To develop.
The main reference to this specification GB 7258 "motor vehicle safety and technical conditions", GB 21861 "motor vehicle safety technology
Test items and methods ", GB/T 13564" drum reaction type car brake test bench ", GB/T 13563" drum
Type car speedometer test bench ", GB 518-2007" motorcycle tire ", GB/T 2983-2008" motorcycle tire
Series ", JJG906" drum reaction brake test bench "and JJG1020" flat brake test bench ", JJG99
"Weight", JJG1036 "electronic balance" and JJG539 "digital indicator scale" compiled from.
This specification is the first release.
Adhesion Coefficient Tester Calibration Specification
1 Scope
This specification applies to the calibration of the adhesion coefficient tester.
2 reference file
JJG906 drum reaction brake test bench
JJG1020 flat brake test bench
Motorcycle Tires
GB/T 2983 motorcycle tire series
Safety technical conditions for motor vehicle operation GB 7258
GB/T 13563 drum type car speedometer test bench
GB/T 13564 Roller reaction car brake test bench
GB 21861 Motor vehicle safety technical inspection items and methods
For dated references, only the dated edition applies to this specification; references that are not dated
, The latest version (including all modifications) applies to this specification.
3 terms and units of measurement
3.1 adhesion
When the normal load is distributed over the entire contact surface and the sliding friction occurs only in the area of the contact surface,
The sum of the tangential forces acting on the contact surface.
3.2 adhesion coefficient
The ratio of the normal load to the normal load on the contact surface is the dimensionless quantity.
3.3 vertical load of wheels vertical loadofwheel
Refers to the measurement of the adhesion coefficient of the tire components perpendicular to the vertical pressure. Divided by relying on the weight of the wheel parts with weight weight
The fixed vertical load of the code weight and the variable vertical load relying on the loading of the positive pressure.
3.4 Roller sliding adhesion coefficient slipadhesioncoefficientofroler
When the vehicle wheel of the vehicle is slid on the upper bus of the active drum (wheel is locked), the brake force measured by the brake
And the ratio of the gravitational (vertical) load of the wheel. For the amount of dimensionless.
4 Overview
The adhesion coefficient tester is used to measure the drum (flat) surface or inspection path of tires and various test tables for motor vehicles
The adhesion coefficient of the surface.
The adhesion coefficient tester is usually composed of wheel (frame) frame, tire, sensor, loading device, brake device, display instrument
Table and other components.
Depending on the loading method, the adhesion coefficient tester is divided into two categories. one is loaded by weight, resulting in a fixed
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