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JJG 2064-2017 English PDF

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JJG 2064-2017: Measuring Instruments for Gas Flow
Status: Valid

JJG 2064: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
JJG 2064-2017English209 Add to Cart 3 days [Need to translate] Measuring Instruments for Gas Flow Valid JJG 2064-2017
JJG 2064-1990English199 Add to Cart 2 days [Need to translate] Verification Scheme of Gas Flow Measuring Instruments Obsolete JJG 2064-1990

PDF similar to JJG 2064-2017


Standard similar to JJG 2064-2017

JJF 1943   GB/T 36126   GB/T 1885   JJF 2064   JJG 2072   JJG 2067   

Basic data

Standard ID JJG 2064-2017 (JJG2064-2017)
Description (Translated English) Measuring Instruments for Gas Flow
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A53
Classification of International Standard 17.120
Word Count Estimation 9,970
Date of Issue 2017-02-28
Date of Implementation 2017-08-28
Older Standard (superseded by this standard) JJG 2064-1990
Quoted Standard JJF 1001-2011; JJF 1059.1-2012; GB/T 27759-2011
Issuing agency(ies) State Administration for Market Regulation
Summary This standard is applicable to measuring the value transfer relationship of the gas flow measuring instruments in the closed pipe, including the relationship between the quantity transfer from the basic quantity and the export volume to the gas flow measurement reference appliance, the gas flow measurement standard appliance, and the gas flow working measuring instrument, The value of the transfer method and the amount of transmission capacity measurement.

JJG 2064-2017: Measuring Instruments for Gas Flow

---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.
Measuring Instruments for Gas Flow People's Republic of China National Metrology Verification System Table Gas flow measurement equipment 2017-02-28 Posted 2017-08-28 Implementation General Administration of Quality Supervision, Inspection and Quarantine released Gas flow measurement instrument calibration system table Replacing JJG 2064-1990 The focal point. National Flow Measurement Technical Committee The main drafting unit. China Institute of Metrology Participate in the drafting unit. Beijing Institute of Metrology and Measurement China Petroleum West-East Gas Pipeline Branch Liaoning Province Institute of Metrology The verification system commissioned the National Flow Measurement Technical Committee responsible for the interpretation The main author of the verification system table. Li Chunhui (China Institute of Metrology) Participate in the drafters. Yang Youtao (Beijing Institute of Metrology and Measurement) Cui Li Shui (China Institute of Metrology) Guo Mingchang (China Petroleum West-East Gas Pipeline Branch) Wang Zhen (Liaoning Province Institute of Metrology)

table of Contents

Introduction (Ⅱ) 1 Scope (1) 2 References (1) 3 Terms and definitions (1) 3.1 The original standard device (1) 3.2 standard flow meter (1) 3.3 standard table standard device (1) 3.4 delivery standards (1) 4 Overview (1) 5 gas flow measurement reference equipment (2) 5.1 pVTt gas flow rate reference device (2) 5.2 bell-type gas flow reference device (2) 6 Gas flow measurement standard equipment (2) 6.1 The original method of gas flow standard device (2) 6.2 standard meter standard gas flow standard device (2) 7 gas flow measurement and measurement equipment (2) 8 test system block diagram (3)

Introduction

In recent years, with the development of technology, the types of gas flow measuring instruments have increased, and the accuracy has been continuously improved. This test Fixed system table based on JJF1104-2003 "National Metrology Verification System Table Writing Rules" be revised. With JJG Compared with 2064-1990, in addition to editorial changes, the main technical changes are as follows. --- Increase pVTt method gas flow reference device; --- Starting from the principle of device measurement, the measurement standard equipment is divided into the original method of gas flow standard devices and standards Table gas flow standard device, instead of JJG 2064-1990 in accordance with the level of accuracy of the first-class gas flow Standard appliances, second-class gas flow standard appliances. The previous version of the verification system table release situation. --- JJG 2064-1990 "gas flow measurement equipment verification system." Gas flow measurement instrument calibration system table

1 Scope

The verification system table is suitable for measuring the amount of gas flow measurement instrumentation within a closed pipeline transfer relationship, including from the base The volume and export volume to the gas flow measurement standards, gas flow measurement standards, gas flow meter The relationship between the value of the transmission, the value of the method of delivery and measurement of the value of delivery.

2 reference documents

The verification system table cited the following documents. Common measurement terms and definitions Evaluation and Expression of Uncertainty in Measurement Uncertainty assessment procedure for fluid flow measurement GB/T 27759-2011 For dated references, only the dated version is applicable to this accreditation system sheet. For undated references With the latest version of the document (including all amendments) applicable to the verification system table.

3 Terms and definitions

3.1 The original method standard device primarystandard Based on the quality or length, time, temperature and other basic volume and pressure, humidity and other export volume measured flow volume value Standard device. Common source gas flow standard devices include .pVTt gas flow standard device, mt gas flow Standard device, piston gas flow standard device, bell-type gas flow standard device, soap film gas flow standard Alignment devices and other types of standard devices. 3.2 standard flowmeter mastermeter Accurate, repeatable flow meter. Common gas standard flowmeters include. Critical Flow Venturi nozzles, Turbine Meters, Roots Meters and others Type of standard flow meter. 3.3 standard table standard device mastermeterstandard Through the standard flowmeter and temperature, pressure, humidity, components and other equipment to measure the flow rate of the standard Device. 3.4 Transfer standard transferstandard Used as a measure of the amount of flow delivered in a flow rate comparison, consisting mainly of standard flow meters (typically including front and back Pipelines and rectifiers, etc.) and temperature, pressure and other ancillary equipment, its value is usually pVTt gas flow rate benchmark The device is delivered.

4 Overview

Gas flow measurement reference instrument refers to pVTt method gas flow reference device, bell-type gas flow rate reference

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