GB/T 21446-2008 Replaced National standards

GB/T 21446-2008 Measurement of natural gas flow by means of standard orifice meter

Publish Date: 2008-02-13 Implement Date: 2008-08-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 21446-2008

Standard Type: National standards

Standard Status: Replaced

is_force_gb: no

CCS Name: Oil and gas gathering and transportation equipment

ICS Name: Volume equipment and volume measurement

Publish Date: 2008-02-13

Implement Date: 2008-08-01

Pages: 104 pages

Scope

This standard specifies the structural form and technical requirements of standard orifice plates; the pressure-taking method, usage, installation and operating conditions, and inspection requirements of flow-restricting devices; and the calculation methods for the volume flow, energy flow, and mass flow of natural gas under standard reference conditions, as well as the measurement uncertainty. It also provides the necessary information for calculating flow and related uncertainties.

Development Information

Word Count: 189 Thousand words Pages: 104 pages

Superseded by the following standards

GB/T 21446-2025 Measurement of natural gas flow by means of standardized orifice meter

Referenced Standards

GB/T 8170-1987 Rules for rounding off of numberical values GB/T 11062-1998 Natural gas—Calculation of calorific values, density, relative density and Wobbe index from composition GB/T 15464-1995 General-purpose specification for the packaging of instrumentation products GB/T 18603-2001 Technical requirements of measuring systems for natural gas JJF 1059-1999 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/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 JJG 640-1994 Verification Regulation of Differential Pressure Type Flowmeter

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