GB/T 21391-2022 Active National standards

GB/T 21391-2022 Measurement of natural gas flow by turbine gas meters

GB/T 21391-2022 Measurement of natural gas flow by turbine gas meters

Publish Date: 2022-04-15 Implement Date: 2022-11-01 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 21391-2022

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: 2022-04-15

Implement Date: 2022-11-01

Pages: 36 pages

Scope

This document specifies the working principle, metrological performance, installation and maintenance, flow calculation, and measurement uncertainty evaluation of gas turbine flowmeters (hereinafter referred to as flowmeters) used for natural gas flow measurement, as well as real-flow calibration and on-site inspection.
This document is applicable to natural gas flow measurement within the scope defined by GB 17820 and GB/T 37124, with a true relative density of 0.55~0.80.

Development Information

Word Count: 71 Thousand words Pages: 36 pages

Replace the following standards

GB/T 21391-2008 Measurement of natural gas flow by turbine meters

Referenced Standards

GB/T 18603-2014 Technical requirements of measuring systems for natural gas GB/T 21446-2008 Measurement of natural gas flow by means of standard orifice meter 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 13384-1992 General specifications for packagings of mechanical and electrical products GB/T 13384-2008 General specifications for packing of mechanical and electrical product 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 17820-1999 Natural gas GB 17820-2012 Natural gas GB 17820-2018 Natural gas GB/T 25480-2010 Basic environmental conditions and testing methods for transportation and storage of instruments GB/T 35186-2017 Performance evaluation of measuring system for natural gas GB/T 35186-2025 Performance evaluation of measuring system for natural gas

Related Standards

GB/T 13235.3-1995 Active

GB/T 13235.3-1995 Petroleum and liquid petroleum products—Volumetric calibration of vertical cylindrical metal tanks—Electro-optical distance-ranging internal method

Publish Date: 1995-12-21

GB/T 6968-1997 Replaced

GB/T 6968-1997 Diaphragm gas meters

Publish Date: 1997-07-29

GB/T 17286.1-1998 Replaced

GB/T 17286.1-1998 Liquid hydrocarbons—Dynamic measurement—Proving systems for volumetric meters—Part 1:General principles

Publish Date: 1998-04-02

GB/T 17286.2-1998 Replaced

GB/T 17286.2-1998 Liquid hydrocarbons—Dynamic measurement—Proving systems for volumetric meters—Part 2:Pipe provers

Publish Date: 1998-04-02

GB/T 17286.3-1998 Replaced

GB/T 17286.3-1998 Liquid hydrocarbons—Dynamic measurement—proving systems for volumetric meters—Part 3:Pulse interpolation techniques

Publish Date: 1998-04-02

GB/T 17287-1998 Active

GB/T 17287-1998 Liquid hydrocarbons—Dynamic measurement—Statistical control of volumetric metering systems

Publish Date: 1998-04-02