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JJF 1377-2012 English PDF

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JJF 1377-2012: Calibration Specification for Wheel Alignment Testers of Level Type
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JJF 1377-2012English509 Add to Cart 4 days [Need to translate] Calibration Specification for Wheel Alignment Testers of Level Type Valid JJF 1377-2012

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Basic data

Standard ID JJF 1377-2012 (JJF1377-2012)
Description (Translated English) Calibration Specification for Wheel Alignment Testers of Level Type
Sector / Industry Metrology & Measurement Industry Standard
Word Count Estimation 22,262
Quoted Standard GB/T 3730.3-1992
Regulation (derived from) AQSIQ Announcement No. 206 of 2012
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine
Summary This standard applies to leveling type wheel alignment measuring instrument (hereinafter referred to as wheel alignment) calibration.

JJF 1377-2012: Calibration Specification for Wheel Alignment Testers of Level Type

---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 Wheel Alignment Testers of Level Type People's Republic of China National Metrology Technical Specifications Leveling type wheel alignment gauge calibration specification Issued on. 2012-12-12 2013-03-12 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Leveling type wheel alignment measuring instrument Calibration Specification Focal point. the National Technical Committee of Legal Metrology measurement management Main drafting unit. Measurement and Testing Institute of Inner Mongolia Autonomous Region Gansu Province Institute of Metrology Participated in the drafting unit. Shanghai Institute of Motor Transport Sciences Lei Lei Hohhot Group Co., Ltd. Inner Mongolia Yifeng motor vehicle safety detection limited liability company This specification commissioned the National Technical Committee on Metering Management is responsible for interpretation of legal metrology The main drafters of this specification. Yan Jun (Inner Mongolia Metrology Institute) Lv Jinhua (Inner Mongolia Metrology Institute) High Decheng (Gansu Province Institute of Metrology) Drafters participate. Guo Xiaodong (Inner Mongolia Metrology Institute) Xu group (Shanghai Automotive Transport Research Institute) Baiming Yao (Hohhot Dalei Dalei Group Co., Ltd.) Ge Biao (Inner Mongolia Yifeng motor vehicle safety detection limited liability company)

table of Contents

Introduction (Ⅱ) 1 Scope (1) 2. References (1) 3 terminology and units of measurement (1) 3.1 Vehicle support plane (1) 3.2 longitudinal symmetry plane of the vehicle (1) 3.3 camber (1) Within 3.4 kingpin inclination (2) 3.5 caster angle (2) 3.6 toe (2) 4 Overview (3) 5 Metrological characteristics (3) 6 calibration conditions (4) Environmental conditions 6.1 (4) 6.2 calibration standard (4) 7 calibration items and calibration methods (4) 7.1 Leveling Calibration (4) 7.2 Calibration turntable (7) 7.3 Calibration toe feet (7) 8 calibration results expression (8) 9 Recalibration interval (8) Appendix A scale factor derivation ηθ (9) Appendix B at right angles to the auxiliary seat specific requirements (11) Appendix C calibration certificate (within the page) content (12) Appendix D standard type wheel alignment measuring instrument calibration records (13) Evaluation of Uncertainty Appendix E standard formula wheel alignment measuring instrument level measuring indication error (14)

Introduction

In the present specification JJF 1071-2010 "National Calibration Specifications writing rules", JJF 1001-2011 "Universal Measurement terms and definitions ", JJF 1059-1999" Evaluation and Expression of Uncertainty in Measurement "as the basic norms into series Row developed. The main reference specification GB/T 3730.3-1992 "motor vehicles and trailers of terms and their definitions vehicle size" JJG (car) 03-1995 "standard wheel locator (provisional)", "automobile test" (Shanghai science and technology Surgery Literature Publishing House) compiled. The specification for the first time to develop. Leveling type wheel alignment gauge calibration specification

1 Scope

This specification applies to the standard-type wheel alignment measuring instrument (hereinafter referred to as wheel alignment instrument) calibration. 2. References GB/T 3730.3-1992 vehicles and trailers of terms and their definitions vehicle size For dated references, only the dated edition applies to this specification; undated reference documents Member, the latest edition (including amendments) apply to this specification.

3 terminology and units of measurement

GB/T 3730.3-1992 defined and the following terms and definitions apply to this specification. 3.1 vehicle support plane supportingplaneofvehicle [GB/T 3730.3-1992,2.1] When the parameters used to measure the size of the vehicle, the supporting wheels flat, solid level. Acronym X plane. 3.2 vehicle longitudinal plane of symmetry longitudinalplaneofsymmetryofvehicle [GB/T 3730.3- 1992,2.4] Vertical line bisecting plane AB. Points A and B at both ends of the shaft through the wheel axis of the same plane X Vertical plane through the line of intersection with the wheel center plane Δ and X plane intersection (see Figure 1). Acronym Y plane. Figure 1 vehicle longitudinal plane of symmetry 3.3 camber camberangle [GB/T 3730.3-1992,3.25] In over the wheel axis X and perpendicular to the plane of the plane, and the horizontal axis between the wheel sandwiched acute angle. Figure 2 As shown by the symbol α expressed in degrees (°). Figure 2 camber

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