JJG 808-2014 English PDF

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JJG 808-2014: Veritication regulation of Standard Lever for Measuring Force
Status: Valid

JJG 808: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 808-2014	459	Add to Cart	4 days	Veritication regulation of Standard Lever for Measuring Force	Valid
JJG 808-1993	359	Add to Cart	3 days	Verification Regulation of Standard Lever for Measuring Force	Obsolete

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Basic data

Standard ID: JJG 808-2014 (JJG808-2014)
Description (Translated English): Veritication regulation of Standard Lever for Measuring Force
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A53
Classification of International Standard: 17.100
Word Count Estimation: 20,224
Date of Issue: 8/1/2014
Date of Implementation: 2/1/2015
Older Standard (superseded by this standard): JJG 808-1993
Quoted Standard: JJG 99-2006; JJG 144-2007
Regulation (derived from): AQSIQ Notice 2014 No. 89
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This Standard applies to the measurement of the upper limit of no more than 6 kN unequal standard dynamometer lever arm (hereinafter referred to as the load lever) initial verification, use and subsequent verification check. Measurement limit of greater t

JJG 808-2014: Veritication regulation of Standard Lever for Measuring Force

---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.
Veritication regulation of Standard Lever for Measuring Force State verification procedures People's Republic of China Standard dynamometer lever Issued on. 2014-08-01 2015-02-01 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Leverage standard dynamometer test procedures Replacing JJG 808-1993 Focal point. the National Technical Committee on Metering hardness force value Main drafting unit. Changzhou Institute of Measurement and Testing Technology Jiangsu Province Institute of Metrology China Shipbuilding Industry Corporation seventh hundred and four Institute Participated in the drafting unit. Shanghai Measurement and Testing Technology Co., Ltd. Dan FIG. This procedure hardness values measured force commissioned by the National Technical Committee is responsible for interpretation The main drafters of this procedure. He Jianxin (Institute of Measurement and Testing Technology, Changzhou) Zhao Feng (Jiangsu Province Institute of Metrology) Zhang Guiren (China Shipbuilding Industry Corporation seventh hundred and four Research Institute) Drafters participate. Mao Qin Wei (Institute of Measurement and Testing Technology, Changzhou) Li Zhifeng (Institute of Measurement and Testing Technology, Changzhou) Fu Shaohua (Jiangsu Province Institute of Metrology) Zhang Song (Shanghai Measurement and Testing Technology Co., Ltd. Dan FIG)

table of Contents

Introduction (Ⅲ) 1 Scope (1) 2. References (1) 3 terminology and units of measurement (1) 3.1 The term (1) 3.2 symbols, meanings and units (1) 4 Overview (2) 5 metering performance requirements (3) 5.1 load lever accuracy level of division and technical specification (3) 5.2 level with the load lever body parallel to the surface of the foot (3) 6 General Requirements (3) 7 control of measuring instruments (4) 7.1 test conditions (4) 7.2 test items and test methods (4) 7.3 Verification Results Processing (6) 7.4 test cycle (6) Appendix A test weight standard load lever method (7) Appendix B test certificate page format (9) Appendix C test results in the notice page format (11) Appendix D test recording format (13) Appendix E major Chinese cities gravity value (14)

Introduction

This procedure prepared in accordance with the rules JJF1002-2012 "national verification procedures write rules" given. The procedures in place JJG 808-1993 "standard load lever." Compared with JJG 808-1993, in addition to editorial changes, the major technical changes are as follows. --- Increased introduction; --- Increasing the reference document (see 2); --- Increasing the terminology and units of measurement (see 3); --- Increasing the load lever composition and structure of the load lever test diagram (see Figures 1 and 2); --- Unified measurement error limit indicators (see 5.1); --- Deleted the original connector protocol inter poor quality content requirements; --- Remove the original procedure dynamometer lever overload test related content; --- Modify the quality of the special weight relative error specification requirements and the corresponding detection methods (see 5.1,7.2.3); --- Modify the corresponding discrimination threshold indicators and detection methods (see 5.1,7.2.6); --- Modify indicators and formulas empty, loaded knife bearing deputy force displacement error (see 5.1,7.2.7); --- Revised Appendix A; --- Modify the test certificate within the page format (see Appendix B); --- Amend the notice of test results within the page format (see Appendix C); --- Modified test recording format (see Appendix D); --- Modify the approximate formula gravitational acceleration value (see Appendix E). JJG 808 previous release case. --- JJG 808-1993 "standard load lever." Leverage standard dynamometer test procedures

1 Scope

The order applies to not more than the upper limit of the measurement range of 6kN standard dynamometer lever arm (hereinafter referred to as load lever) The initial verification, use and subsequent verification check. Greater than the upper limit of the measuring 6kN load lever can refer to these Rules. 2. References JJG 99-2006 weight JJG 144-2007 standard dynamometer For dated references, only the dated edition applies to this procedure; undated reference documents Member, the latest edition (including any amendments) applies to this procedure.

3 terminology and units of measurement

3.1 Terms 3.1.1 Key weightpoint Applying cutting edge position of gravity special weight on the load lever. 3.1.2 power point forcepoint Force will blade lever position after the special weight of gravity exerted by the amplifier output. 3.1.3 fulcrum supportingpoint Key balance the blade position and force point of load lever. 3.1.4 Leverage ratio leveramplification-ratio Distance and force to focus on the load lever fulcrum point to the ratio of the distance of the fulcrum. 3.1.5 Knife Cheng, vice combinationofknifeandknifebearing Load lever and knife combination knife-supporting. 3.1.6 lever base leverbase Dynamometer lever was horizontal measurement limit equilibrium state by the load lever of ruler, on connector, gain support plate and the mound End-point joint action force and force values in the output of the power point. 3.2 symbols, meanings and units Symbols used in this procedure, and the meaning of the unit shown in Table 1. Table 1 Symbols, Meaning and Unit No. Symbol Meaning Unit

1 mc special weight nominal mass conversion value kg

2 m special weight kg actual translation quality value

Quality 3 δm special weight% relative error ......

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