JJG 1146-2017 English PDF

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JJG 1146-2017: Working Torque-meters
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 1146-2017	299	Add to Cart	3 days	Working Torque-meters	Valid

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Basic data

Standard ID: JJG 1146-2017 (JJG1146-2017)
Description (Translated English): Working Torque-meters
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A53
Classification of International Standard: 17.100
Word Count Estimation: 13,186
Date of Issue: 2017-11-20
Date of Implementation: 2018-02-20
Regulation (derived from): AQSIQ Notice 2017 No. 103
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This standard is applicable to the first verification, subsequent verification and in-service inspection of a working torque meter (hereinafter referred to as torque meter).

JJG 1146-2017: Working Torque-meters

---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.
Working Torque-meters National metrological verification regulations of the People's Republic of China Working torque meter Published on.2017-11-20 2018-02-20 Implementation The State Administration of Quality Supervision, Inspection and Quarantine issued Torque Meter Verification Procedure Agency. National Force Hardness Measurement Technical Committee Drafted by. China Academy of Metrology CSSC No. 704 Research Institute Shanghai Institute of Metrology and Measurement Technology Participated in drafting. Zhejiang Institute of Metrology China Testing Technology Research Institute This procedure entrusts the National Force Hardness Measurement Technical Committee to explain The main drafters of this regulation. Guo Bin (China Institute of Metrology) Li Tao (Chongqing Ship Industry Heavy Industry Group, No. 704 Research Institute) Cheng Yong (Shanghai Measurement and Measurement Technology Research Institute) Participating drafters. Wu Hao (China Institute of Metrology) Jiang Xiaobo (Zhejiang Provincial Institute of Metrology) Qing Yanping (China Testing Technology Institute)

table of Contents

Introduction (II) 1 Scope (1) 2 Symbols, Meanings and Units of Measurement (1) 3 Overview (2) 4 Metrological performance requirements (2) 5 General technical requirements (2) 5.1 Appearance and Accessories (2) 5.2 Other related technical characteristics (2) 5.3 Resolving Power of Indicators (2) 6 Measuring Instruments Control (3) 6.1 Verification conditions (3) 6.2 Verification Projects and Verification Methods (3) 6.3 Processing of verification results (5) 6.4 Verification period (5) Appendix A Torque Test Certificate/Validation Results Notification Form (6) Appendix B Torque Meter Verification Record Format (8)

Introduction

This regulation is prepared according to the rules stipulated in JJF1002-2010 “Rules for the preparation of national metrological verification regulations”. This regulation is issued for the first time. Torque Meter Verification Procedure

1 Scope

This procedure is applicable to the initial verification, subsequent verification and use of a working torque meter (hereinafter referred to as torque meter) an examination. 2 Symbols, meanings and units of measure Symbols, meanings and units of measurement are shown in Table 1. Table 1 Symbols, meanings and units Serial number symbol meaning unit 1 xl Lower limit deformation value (or output) corresponding to the lower limit of the torque meter measurement

2 r Torque meter indicating device resolution

3 X0i indicating value of the indicating device before the ith measurement torque is applied 4 X'0i indicating value of indicating device after detachment of torque at ith measurement

5 XNi Measured value of the indicating device under the rated torque

6 X 3 Measured Process Averages 7 X' Measured average of three return measurements 8 Xmax Maximum value of 3 measurement process indications 9 Xmin Minimum value of 3 measurement process indications 10 X1 Torque Meter Last Measure Process Mean Value Average 11 X2 torque meter average value of the verification process 12 Xs standard torque applied 13 Xa Calculated value of torque meter obtained with calibration equation Nm,mV/V, Mm, V, Hz, etc. 14 Zr hysteresis difference %FS 15 Zri Measured Backcross Zero %FS 16 R repeatability% 17 Sb long-term stability% 18 E indication error % 19 υ difference in return distance 20 Ip interpolation error% ......

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