JJG 142-2002 English PDF

US$449.00 · In stock
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JJG 142-2002: Verification Regulation of Nonself-Indicating Rail-Weighbridge
Status: Valid

JJG 142: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 142-2002	449	Add to Cart	3 days	Verification Regulation of Nonself-Indicating Rail-Weighbridge	Valid
JJG 142-1987	359	Add to Cart	3 days	Verification Regulation of a Static Railway Track Scale	Obsolete

Similar standards

GB/T 36126   JJG 139   GB/T 1885   JJG 140   JJG 147   JJG 133   

Basic data

Standard ID: JJG 142-2002 (JJG142-2002)
Description (Translated English): Verification Regulation of Nonself-Indicating Rail-Weighbridge
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A53
Word Count Estimation: 17,155
Date of Issue: 2002-09-13
Date of Implementation: 2003-03-13
Older Standard (superseded by this standard): JJG 142-1987
Quoted Standard: JJG 555-1996; JJG 567-1989; GB 2887-2000
Summary: This standard applies to the accuracy level and the general level of accuracy of the non-self-indicating track scale (including mechanical and electrical integration track scale structural part of the machinery) of the initial verification, testing and use of follow-up inspection.

JJG 142-2002: Verification Regulation of Nonself-Indicating Rail-Weighbridge

---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 Nonself-Indicating Rail-Weighbridge National Metrology Verification Regulations of the People's Republic Non-self-indicating track scale Released on.2002-09-13 2003-03-13 implementation The General Administration of Quality Supervision, Inspection and Quarantine issued Replace JJG 142-1987 This verification procedure was approved by the General Administration of Quality Supervision, Inspection and Quarantine on September 13,.2002. It will be implemented as of March 13,.2003. Focal Point. National Quality Measurement Technical Committee Main drafting unit. National Railway Scale Metering Station National Railway Scale Metering Station Shenyang Sub-station This procedure entrusts the National Quality Measurement Technical Committee to explain The main drafters of this procedure. Chen Forest (National Railway Scale Metering Station) Guo Lili (National Railway Scale Metering Station) He Xiaoju (National Railway Scale Metering Station) Wang Jianying (National Railway Scale Metering Station Shenyang Substation)

table of Contents

1 Scope (1) 2 Citations (1) 3 terms and units of measurement (1) 3.1 Verification (1) 3.2 First verification (1) 3.3 Follow-up verification (1) 3.4 Cycle verification (1) 3.5 Inspection (1) 3.6 scale division (2) 3.7 Unit of measurement (2) 4 Overview (2) 5 Metrological performance requirements (2) 5.1 Principle of classification (2) 5.2 Accuracy level, minimum weighing and maximum weighing of track scale (2) 5.3 Maximum allowable error (3) 5.4 Allowable difference between weighing results (3) 5.5 Standardizer for verification (4) 5.6 Minimum sensitivity (4) 6 General technical requirements (4) 6.1 Requirements for installation basic and environmental conditions (4) 6.2 Mechanical installation requirements (4) 6.3 Sign of the track scale (5) 7 measuring instrument control (5) 7.1 Verification conditions (5) 7.2 Verification items and verification methods (6) 7.3 Processing of verification results (10) 7.4 Verification cycle (10) Appendix does not indicate the verification record format of the track scale (11) Non-self-indicating track scale verification procedure This procedure is based on JJG 555-1996 "General Procedures for Non-Automatic Scales". JJG 555-1996 Various types of non-automatic scale general verification procedures passed before the promulgation of stereotypes and prototype tests Non-self-indicating track scale. In the visual inspection, the provisions of 6.3 of this regulation are not temporarily implemented; in the subsequent verification, except for repair Except for the first test to determine the maximum allowable error, the remaining execution is twice the maximum allowable error for the first test.

1 Scope

This procedure is applicable to non-self-indicating railway scales with medium accuracy and common accuracy levels (including electromechanical combined railway scales). The first verification, subsequent verification and in-use inspection of the mechanical structure part).

2 Citations

This procedure refers to the following documents. JJG 555-1996 "General verification procedures for non-automatic scales" JJG 567-1989 "Checking the car" GB 2887-2000 "Technical Conditions for Computing Station Sites" Use of this procedure should take care to use the current valid version of the above cited documents.

3 terms and units of measure

JJG 555-1996 Part of the term "General Procedures for Non-Automatic Scales" applies to this regulation, for the convenience of A metrological verification is made, citing some of the terms in its measurement management. 3.1 Verification Procedure for ascertaining and confirming compliance with statutory requirements for measuring instruments, including inspection, marking and/or issuing Verification certificate. 3.2 First verification A test performed on new measuring instruments that have never been calibrated. 3.3 Follow-up verification Any test after the first measurement of the measuring instrument. 1) Mandatory periodic verification; 2) verification after repair; 3) Verification of the validity period of the periodic verification, whether it is requested by the user or for some reason A verification that the seal is invalid during the validity period. 3.4 Cycle verification A subsequent verification of the measuring instrument at regular intervals and prescribed procedures. 3.5 Inspection In order to find out whether the calibration mark or verification certificate of the measuring instrument is valid, whether the protection mark is damaged, and the measurement after the verification ......

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