GB/T 18604-2023 Active National standards

GB/T 18604-2023 Measurement of natural gas flow by gas ultrasonic flow meters

Publish Date: 2023-05-23 Implement Date: 2023-12-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 18604-2023

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Oil and gas gathering and transportation equipment

ICS Name: Volume equipment and volume measurement

Publish Date: 2023-05-23

Implement Date: 2023-12-01

Pages: 45 pages

Scope

This document specifies the measurement performance of the plug-in time-difference spread gas ultrasonic flowmeter (hereinafter referred to as "flowmeter"), the requirements for the flowmeter itself, installation and maintenance, on-site verification tests, as well as the flow calculation method and measurement uncertainty estimation.
This document is applicable to natural gas flow measurement in gathering and transportation devices, gas pipelines, storage facilities, gas distribution systems, user metering systems, metrology standard devices, and other application sites.

Development Information

Word Count: 89 Thousand words Pages: 45 pages

Replace the following standards

GB/T 18604-2014 Measurement of natural gas flow by gas ultrasonic flow meters

Referenced Standards

GB/T 2624.2-2006 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full—Part 2:Orifice plates GB 3836.1-2000 Electrical apparatus for explosive gas atmospheres—Part 1:General requirements GB 3836.1-2010 Explosive atmospheres—Part 1:Equipment—General requirements GB/T 3836.1-2021 Explosive atmospheres—Part 1:Equipment—General requirements GB 3836.2-2000 Electrical apparatus for explosive gas atmospheres—Part 2:Flameproof enclosure “d” GB 3836.2-2010 Explosive atmospheres—Part 2:Equipment protection by flameproof enclosures "d" GB/T 3836.2-2021 Explosive atmospheres—Part 2:Equipment protection by flameproof enclosures “d” GB 3836.4-2000 Electrical apparatus for explosive gas atmospheres—Part 4:Intrinsic safety“i” GB 3836.4-2010 Explosive atmospheres—Part 4:Equipment protection by intrinsic safety "i" GB/T 3836.4-2021 Explosive atmospheres—art 4:Equipment protection by intrinsic safety “i” GB 4208-1993 Degrees of protection provided by enclosure (IP code) GB/T 4208-2008 Degrees of protection provided by enclosure(IP code) GB/T 4208-2017 Degrees of protection provided by enclosure(IP code) GB/T 11062-1998 Natural gas—Calculation of calorific values, density, relative density and Wobbe index from composition GB/T 11062-2014 Natural gas—Calculation of calorific values,density,relative density and Wobbe index GB/T 11062-2020 Natural gas—Calculation of calorific values,density,relative density and Wobbe indices from composition GB/T 13610-2003 Analysis of natural gas by gas Chromatography GB/T 13610-2014 Analysis of natural gas composipion—Gas chromatography GB/T 13610-2020 Analysis of natural gas composition—Gas chromatography GB/T 17747.1-1999 Natural gas—Calculation of compression factor—Part 1:Introduction and guidelines GB/T 17747.1-2011 Natural gas—Calculation of compression factor—Part 1:Introduction and guidelines GB/T 17747.2-1999 Natural gas—Calculation of compression factor—Part 2:Calculation using molar-composition analysis GB/T 17747.2-2011 Natural gas—Calculation of compression factor—Part 2:Calculation using molar composition analysis GB/T 17747.3-1999 Natural gas—Calculation of compression factor—Part 3:Calculation using physical properties GB/T 17747.3-2011 Natural gas—Calculation of compression factor—Part 3:Calculation using physical properties GB/T 21446-2008 Measurement of natural gas flow by means of standard orifice meter GB/T 30500-2014 Ultrasonic gas flow meter performance online audit—Method using speed of sound checking GB/T 35186-2017 Performance evaluation of measuring system for natural gas JJG 1030-2007 Ultrasonic Flowmeters SY/T 0599-2018 Natural gas ground facilities technical specifications for metal materials that resist sulfide stress cracking and stress corrosion cracking SY/T 0599-2006 The metal materials for natural gas ground facilities require resistance to sulfide stress cracking and stress corrosion cracking SY/T 0599-1997 Natural gas surface facilities require metal materials that are resistant to sulfide stress cracking GB/T 35186-2025 Performance evaluation of measuring system for natural gas GB/T 21446-2025 Measurement of natural gas flow by means of standardized orifice meter

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