JJG 144-2007 English PDF

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JJG 144-2007: Verification Regulation of Standard Dynamometers
Status: Valid

JJG 144: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 144-2007	389	Add to Cart	3 days	Verification Regulation of Standard Dynamometers	Valid
JJG 144-1992	559	Add to Cart	4 days	Verification Regulation of Standard Dynamometer	Obsolete
JJG 144-1982	RFQ	ASK	3 days	Verification Regulation for Standard Dynamometers	Obsolete

Similar standards

GB/T 36126   JJG 145   GB/T 1885   JJG 140   JJG 147   JJG 139   

Basic data

Standard ID: JJG 144-2007 (JJG144-2007)
Description (Translated English): Verification Regulation of Standard Dynamometers
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A53
Classification of International Standard: 17.100
Word Count Estimation: 15,125
Date of Issue: 2007-02-28
Date of Implementation: 2007-08-28
Older Standard (superseded by this standard): JJG 144-1992
Quoted Standard: AQSIQ Announcement No. 41 of 2007
Regulation (derived from): AQSIQ Announcement No. 41 of 2007
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This standard applies to dial-type and strain of such standard dynamometer initial verification, testing and use of follow-up inspection.

JJG 144-2007: Verification Regulation of Standard Dynamometers

---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.
Verification Regulation of Standard Dynamometers State verification procedures People's Republic of China Standard dynamometer Posted 2007-02-28 2007-08-28 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Standard dynamometer test procedures StandardDy namometers Replacing JJG 144-1992 The regulations by the State Administration of Quality Supervision, Inspection and Quarantine, 2007 February 28 ratification and From August 28, 2007 into effect. Focal point. the National Technical Committee on Metering hardness force value The main drafting units. China Institute of Metrology Shandong Province Institute of Metrology China Testing Technology Research Institute Participated in the drafting unit. China Airlines 304 Jilin Institute of Metrology Shanghai Measurement and Testing Technology Research Institute This procedure hardness values measured force commissioned by the National Technical Committee is responsible for interpretation The main drafters of this procedure. Nitrogeh Co (China Institute of Metrology) Lee Wan liters (Shandong Province Institute of Metrology) Hu Gang (China Institute of Metrology) Lin (China Institute of Metrology) He Jianping (China Testing Technology Research Institute) Drafters participate. Qin Haifeng (China Aviation 304) Qu Zhuo (Jilin Institute of Metrology) Zhang Guiren (Shanghai Institute of Measurement and Testing)

table of Contents

1 Scope (1) 2. Referenced Documents (1) 3 Overview (1) 4 metering performance requirements (1) 5 General Requirements (2) 6 Control of measuring instruments (2) 6.1 Verification condition (2) 6.2 test items and test methods (3) 6.3 Verification Results Processing (6) 6.4 Classification Rules (6) 6.5 test cycle (6) Appendix A calibration certificate and test results in the notice page format 1 (7) (Dial type, etc. standard dynamometer) Appendix B test certificate and test results in the notice page format 2 (8) (Strain and other standard dynamometer) Appendix C standard dynamometer test records (9) (0.1, 0.3 and 0.5 standard dynamometer) Appendix D standard dynamometer test records (10) (0.01, 0.03 and 0.05 standard dynamometer) Standard dynamometer test procedures

1 Scope

The order applies to dial-type strain and other standard dynamometer (hereinafter referred to as dynamometers) initial verification, after Continued verification and in-service inspection.

2 Citations

GB/T 13634-2000 "testing machines Dynamometer Calibration" When using this procedure, it should pay attention to using the currently valid version of the documents cited.

3 Overview

Dynamometer by the force sensor (or measuring ring) and associated pointing device components. When the force sensor (or measuring ring) When the force, magnitude of the force is indicated by the indicating means.

4 metering performance requirements

Dynamometer accuracy level of division and technical indicators are shown in Table 1. Table 1 standard dynamometer accuracy of technical indicators and the level of division level Technical Specifications xl Zr (% FS) R (%) Sb (%) δ (%) v (%) Ip (%) Ep (%) 0.01 20000r ± 0.005 0.01 ± 0.01 ± 0.01 ± 0.03 ± 0.01 0.02 0.03 7000r ± 0.015 0.03 ± 0.03 ± 0.03 ± 0.09 ± 0.03 0.06 0.05 4000r ± 0.025 0.05 ± 0.05 ± 0.05 ± 0.15 ± 0.05 0.1 0.1 2000r ± 0.05 0.1 ± 0.1 ± 0.1 ± 0.3 ± 0.1 --- 0.3 700r ± 0.15 0.3 ± 0.3 ± 0.3 ± 0.9 ± 0.3 --- 0.5 400r ± 0.25 0.5 ± 0.5 ± 0.5 ± 1.5 ± 0.5 --- xl --- and dynamometer measurement limit corresponding to the lower limit of the deformation indication (or output); r --- dynamometer resolution indicating device; Zr --- back to zero difference; R --- repeatability; Sb --- long-term stability; v --- the difference between forward and backward; δ --- indication error; Ip --- interpolation error; Ep --- azimuth error. Note. 1. The difference between forward and backward and the interpolation error is given according to user requirements. 2. When using a dynamometer force value units, the assessment shall dynamometer indication error indicators, without long-term stability assessment Metrics. 3. When using a non-force dynamometer Unit shall assess dynamometer long-term stability metrics, without showing the value assessment Error indicators. 4. When there are special requirements, allow other levels given in the table between the two levels, namely 0.02, 0.2, 0.4 three informal level. 0.02 also has its corresponding azimuth error requirements. ......

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