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JJF 1477-2014: Calibration Specification for Tire Tread Depth Gauges
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| JJF 1477-2014 | English | 349 |
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Calibration Specification for Tire Tread Depth Gauges
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JJF 1477-2014
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Basic data | Standard ID | JJF 1477-2014 (JJF1477-2014) | | Description (Translated English) | Calibration Specification for Tire Tread Depth Gauges | | Sector / Industry | Metrology & Measurement Industry Standard | | Classification of Chinese Standard | A52;G41 | | Word Count Estimation | 15,143 | | Date of Issue | 8/25/2014 | | Date of Implementation | 11/25/2014 | | Quoted Standard | JJG 30-2012; GB 7258-2012; GB/T 17163-2008; GB/T 21388-2008 | | Regulation (derived from) | People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine Notice 2014 (No. 95); AQSIQ Notice 2014 No. 95 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine | | Summary | This Standard applies to dividing the value of not more than 0. 05mm vernier scale and tire tread depth is not more than 0. 01mm resolution digital tire tread depth gauge calibration. | JJF 1477-2014: Calibration Specification for Tire Tread Depth Gauges---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 Tire Tread Depth Gauges
People's Republic of China National Metrology Technical Specifications
Tire tread depth gauge calibration specification
Issued on. 2014-08-25
2014-11-25 implementation
The State Administration of Quality Supervision, Inspection and Quarantine released
Tire tread depth gauge calibration specification
Focal point. the National Technical Committee of Legal Metrology measurement management
Main drafting unit. Fujian Institute of Metrology
Jiangxi Institute of Metrology
Participated in the drafting unit. Henan Institute of Metrology
Guilin Guanglu Measuring Instrument Co., Ltd.
Zibo Bioko Electronics Co., Ltd.
This specification commissioned the National Technical Committee on Metering Management is responsible for interpretation of legal metrology
The main drafters of this specification.
Ching-Star (Fujian Institute of Metrology)
Dai Yingyun (Jiangxi Institute of Measurement and Testing)
Xu Hang (Fujian Institute of Metrology)
Drafters participate.
Wang Chaoyang (Fujian Institute of Metrology)
Zhang Qifeng (Henan Institute of Metrology)
Yan snow column (Guilin Guanglu Measuring Instrument Co., Ltd.)
Lee Music (Zibo Bioko Electronics Co., Ltd.)
table of Contents
Introduction (Ⅱ)
1 Scope (1)
2. References (1)
3 Overview (1)
4 Metrological characteristics (2)
4.1 value and resolution (2)
4.2 Zero error (2)
Drift 4.3 (2)
4.4 Measuring surface flatness (2)
4.5 Indication error (2)
4.6 Repeatability (2)
Calibration Condition 5 (2)
5.1 environmental conditions (2)
5.2 standards and other measuring equipment (2)
6 calibration items and calibration methods (3)
6.1 calibration items (3)
6.2 Calibration method (3)
7 Calibration Results The expression (4)
7.1 Calibration Data Processing (4)
7.2 calibration certificate (4)
7.3 Calibration Uncertainty Evaluation (4)
8 Recalibration interval (4)
A depth gauge calibration records (Shape) (5) Appendix
Appendix B calibration certificate calibration results content (6)
Appendix C depth gauge indication error of measurement Uncertainty Evaluation (Example) (7)
Introduction
This specification based JJF 1001-2011 "common measurement terminology and definitions", JJF 1059.1-2012 "test
Evaluation and Expression of Uncertainty ", JJF 1071-2010" national measurement calibration specifications write rules "for the basic system
Column specification developed.
This specification main reference JJG30-2012 "Universal caliper", GB 7258-2012 "Run vehicle safety technology
Surgery conditions ", GB/T 17163-2008" dimensional measuring instruments - Basic terminology ", GB/T 21388-2008
"Cursor, with table and digital display depth caliper" compiled.
This specification is the first release.
Tire tread depth gauge calibration specification
1 Scope
This specification applies to dividing the value of not more than 0.05mm vernier tire tread depth gauge with resolution no greater than
0.01mm Digital tire tread depth gauge calibration.
2. References
This specification refers to the following documents.
JJG30-2012 Universal caliper
GB 7258-2012 the safe operation of motor vehicles technical conditions
GB/T 17163-2008 dimensional measuring instruments - Basic terminology
GB/T 21388-2008 cursor, with table and digital display depth caliper
For dated references, only the dated edition applies to this specification; undated reference documents
Member, the latest edition (including all amendments), applicable to this specification.
3 Overview
Tire tread depth gauge (hereinafter referred to as "depth gauge") is measured using the depth measuring rod groove depth gauge
Device for measuring vehicle tire crown tread depth, depth gauge by reading into the form of Vernier depth gauge (see Fig.
1) with a number of explicit depth gauge (see Figure 2) categories.
Vernier depth gauge is the use of the principle of vernier scale box measuring surface and relative movement of ruler measuring faces separated by distance
Reading measuring instruments; digital display is the use of grating depth gauge or measuring magnetic grid measurement, digital display principle of the foot frame
Measuring surface and relative movement of ruler measuring faces separated by a distance measuring instrument readings.
Figure 1 Vernier depth gauge
1- main scale; 2- foot frame; 3- vernier; 4- datum; 5- measuring surface
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