JJG 988-2004 English PDF

US$519.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJG 988-2004: Verification Regulation of Vertical Metal Tank Diametrical Deviation Measuring Instrument
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 988-2004	519	Add to Cart	4 days	Verification Regulation of Vertical Metal Tank Diametrical Deviation Measuring Instrument	Valid

Similar standards

GB/T 36126   JJG 1030   GB/T 1885   JJG 126   JJG 997   JJG 996   

Basic data

Standard ID: JJG 988-2004 (JJG988-2004)
Description (Translated English): Verification Regulation of Vertical Metal Tank Diametrical Deviation Measuring Instrument
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A53
Classification of International Standard: 17.120
Word Count Estimation: 20,299
Date of Issue: 2004-09-21
Date of Implementation: 2004-12-21
Quoted Standard: 2004 technical regulations issued by national metrology (industrial measurement 2005 Volume 15, Issue 1)
Regulation (derived from): 2004 technical regulations issued by national metrology (industrial measurement 2005 Volume 15, Issue 1)
Issuing agency(ies): State Administration of Quality Supervision, Inspection and Quarantine
Summary: This standard applies to vertical metal cans radial deviation meter (including with rail optical radial deviation meter, portable radial deviation meter and optical vertical collimator) of the initial verification, testing and use of follow-up inspection.

JJG 988-2004: Verification Regulation of Vertical Metal Tank Diametrical Deviation Measuring Instrument

---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 Vertical Metal Tank Diametrical Deviation Measuring Instrument National Metrology Verification Regulations of the People's Republic Vertical metal can radial deviation measuring instrument Released on.2004-09-21 Implementation of.2004-12-21 The General Administration of Quality Supervision, Inspection and Quarantine issued Vertical metal can radial deviation Measuring instrument verification procedure Instrument This regulation was approved by the General Administration of Quality Supervision, Inspection and Quarantine on September 21,.2004, and Implemented on December 21,.2004. Focal Point. National Traffic Capacity Measurement Technical Committee Main drafting unit. China Institute of Metrology Participated in the drafting unit. National Large Capacity First Metering Station National Large Capacity Second Metering Station This regulation entrusts the National Traffic Volume Measurement Professional Technical Committee to explain The main drafters of this procedure. Liu Ziyong (China Institute of Metrology) Participate in the drafters. Sun Jinge (National Large Capacity First Metering Station) Wang Ding (National Large Capacity Second Metering Station) Shen Jianguo (National Large Capacity Second Metering Station) Blizzard (China Institute of Metrology)

table of Contents

1 Scope (1) 2 Citations (1) 3 terms (1) 4 Overview (1) 4.1 Guide rail optical radial deviation measuring instrument (1) 4.2 Mobile radial deviation measuring instrument and optical vertical measuring instrument (1) 5 Metrological performance requirements (2) 5.1 Measuring performance requirements for rail optical radial deviation measuring instrument (2) 5.2 Mobile radial deviation measuring instrument and optical vertical measuring performance requirements (3) 6 General technical requirements (3) 6.1 Technical requirements for guide rail optical radial deviation measuring instrument (3) 6.2 Technical requirements for mobile radial deviation measuring instrument and optical vertical measuring instrument (3) 7 Measuring instrument control (4) 7.1 Verification conditions (4) 7.2 Verification project (5) 7.3 Verification method (6) 7.4 Processing of verification results (9) 7.5 Verification cycle (9) Appendix A Certificate Format Page (10) Appendix B Format of the verification result page (11) Appendix C Calibration Record of Guided Optical Radial Deviation Measuring Instrument (12) Appendix D Mobile Radial Deviation Meter Verification Record (14) Appendix E Optical Vertical Calibration Record (15) Vertical metal can radial deviation measuring instrument verification procedures

1 Scope

This procedure is applicable to vertical metal can radial deviation measuring instrument (including optical radial deviation measuring instrument with guide rail, moving First-time verification, follow-up verification and in-use inspection of radial deviation measuring instrument and optical vertical measuring instrument.

2 Citations

This procedure refers to the following documents JJG 414-2003 Optical Theodolite Verification Procedure JJG 202-1990 Self-collimator verification procedure JJG 1-1999 steel ruler verification procedure JJF1081-2002 Optical Vertical Calibration Specification Use of this procedure should take care to use the current valid version of the above cited documents.

3 terms

3.1 Radial deviation The difference between the radius of a circle of a vertical metal can and the radius of the base circle. 3.2 Straightness of the guide rail The degree of bending of the rail in the horizontal direction. 3.3 Horizontality of the guide rail The degree of bending of the rail in the vertical direction. 3.4 Radial runout of the main wheel The ellipticity of the main wheel of the mobile radial deviation measuring instrument. 3.5 Axial swing of the main wheel The amount of axial sway of the main wheel of the mobile radial deviation measuring instrument.

4 Overview

4.1 Guide rail optical radial deviation measuring instrument The guide optical radial deviation measuring instrument is an optical measuring instrument for volumetric measurement of vertical metal cans, which can be The tank is subjected to non-contact radial deviation measurement. The shape of the instrument is shown in Figure 1. 4.2 Mobile radial deviation measuring instrument and optical vertical gauge The mobile radial deviation measuring instrument is matched with the optical vertical measuring instrument, and the optical vertical line is used as the reference line. A measuring instrument for measuring the radial deviation of a vertical metal can in or out of the tank. The shape of the instrument is shown in Figure 2. The optical vertical gauge is an optical instrument that gives a vertical line of lead based on the gravity line. Using optical plumb lines as a reference Read the moving radial deviation gauge scale data. The shape of the instrument is shown in Figure 3. ......

Image     

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJG 988-2004_English be delivered?

Answer: Upon your order, we will start to translate JJG 988-2004_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJG 988-2004_English with my colleagues?

Answer: Yes. The purchased PDF of JJG 988-2004_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.