JJF 1489-2014 English PDF

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JJF 1489-2014: Calibration Specification for Calibration Devices of Four-wheel Aligner
Status: Valid

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JJF 1489-2014	509	Add to Cart	4 days	Calibration Specification for Calibration Devices of Four-wheel Aligner	Valid

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Basic data

Standard ID: JJF 1489-2014 (JJF1489-2014)
Description (Translated English): Calibration Specification for Calibration Devices of Four-wheel Aligner
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A52
Classification of International Standard: 17.040
Word Count Estimation: 22,282
Date of Issue: 8/25/2014
Date of Implementation: 11/25/2014
Quoted Standard: JJG 202-2007; JJF 1154; GB/T 3730.3; JT/T 505
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 four positioning calibration device (does not apply to special calibration wheel alignment rack) calibration. This Standard specifies the metrological characteristics of wheel alignment calibration device, calibration conditions a

JJF 1489-2014: Calibration Specification for Calibration Devices of Four-wheel Aligner

---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 Calibration Devices of Four-wheel Aligner People's Republic of China National Metrology Technical Specifications Wheel alignment calibration device calibration specifications Issued on. 2014-08-25 2014-11-25 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Wheel alignment calibration device calibration specifications Focal point. the National Technical Committee of Legal Metrology measurement management Main drafting unit. Jilin Institute of Metrology Metrology hospital in Guizhou Province Shanghai Institute of Science and Technology of Motor Transport Participated in the drafting unit. Jilin University This specification commissioned the National Technical Committee on Metering Management is responsible for interpretation of legal metrology The main drafters of this specification. Room-laid (Jilin Institute of Metrology) Wang Yong (Guizhou Province Measurement and Testing Institute) Zheng Wenqing (Shanghai Automotive Transport Institute of Science and Technology) Drafters participate. Yan surplus (Jilin Institute of Metrology) Huang Lei (Jilin Institute of Metrology) Cheng Shao will (Jilin University)

table of Contents

Introduction (Ⅱ) 1 Scope (1) 2. References (1) 3 terminology and units of measurement (1) 3.1 vehicle support plane (referred to as the X plane) (1) 3.2 the vehicle longitudinal symmetry plane (Y plane for short) (1) 3.3 single round toe (angle) (1) 3.4 Kingpin inclination (2) 3.5 Caster (2) 3.6 camber (2) 4 Overview (2) 5 Metrological characteristics (2) 5.1 Zero (2) 5.2 Indication (3) 6 calibration conditions (4) Environmental conditions 6.1 (4) 6.2 standards and other measuring equipment (4) 7 calibration items and calibration methods (4) 7.1 calibration items (4) 7.2 Calibration method (5) 8 calibration results expression (9) 8.1 Calibration Data Processing (9) 8.2 calibration certificate (9) 8.3 Calibration of Uncertainty Evaluation (9) 9 Recalibration interval (9) Appendix A specific reflecting mirror (10) Appendix B recommended calibration certificate contents (11) Appendix C original record format (12) Appendix D calibration device angle indication error of calibration results Uncertainty Evaluation Examples (15)

Introduction

In the present specification JJF 1001-2011 "common measurement terms and definitions", JJF 1059.1-2012 "measurement uncertainty Constant evaluation and expression "and JJF 1071-2010" national measurement calibration specifications write rules "as the foundation of the series specifications Be developed. This specification main reference JT/T 505 "wheel alignment" and compiled. The specification for the first time to develop. Wheel alignment calibration device calibration specifications

1 Scope

This standard applies to four wheel alignment calibration device (NA four locator shelf dedicated calibration) calibration. This Regulation Fan stipulating metrological characteristics of wheel alignment calibration device, calibration conditions and calibration methods. 2. References This specification references the following documents. JJG202-2007 Autocollimator JJF 1154 wheel alignment calibration specification GB/T 3730.3 vehicles and trailers of terms and their definitions vehicle size JT/T 505 wheel alignment For dated references, only the dated edition applies to this specification; undated reference documents Member, the latest edition (including any amendments) applies to this specification.

3 terminology and units of measurement

JJF 1001-2011, GB/T 3730.3 and as defined in the following terms and definitions apply to this specification. 3.1 vehicle support plane (referred to as the X plane) supportplaneofvehicle Measuring dimensional parameters of the vehicle, wheels for supporting the flat, horizontal solid. [GB/T 3730.3, 2.1] 3.2 vehicle longitudinal plane of symmetry (called Y plane) longitudinalplaneofsymmetryofvehicle Vertical line bisecting plane AB. Points A and B at both ends of the shaft through the wheel axis of the same plane X Intersection of the vertical plane with the line of intersection of the wheel center plane Δ and X plane (see Figure 1). [GB/T 3730.3,2.4] FIG. 1 a plan view of the vehicle's longitudinal symmetry 2 caster 3.3 single round toe (angle) individualwheeltoe-in (angle) Relative to the plane of rotation of the wheels of each vehicle longitudinal axis (geometric center line) of the angle in the horizontal plane. Front wheel End biased to the longitudinal axis direction is positive, otherwise it is negative. ......

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