GB/T 21391-2022
Measurement of natural gas flow by turbine gas meters (English Version)
- Standard No.
- GB/T 21391-2022
- Language
- Chinese, Available in English version
- Release Date
- 2022
- Published By
- 国家市场监督管理总局、中国国家标准化管理委员会
- Latest
- GB/T 21391-2022
- Replace
- GB/T 21391-2008
- Scope
- This document specifies the working principle, measurement performance, installation and maintenance, flow calculation and measurement uncertainty evaluation, real flow calibration and on-site inspection of gas turbine flowmeters (hereinafter referred to as flowmeters) used for natural gas flow measurement. This document is applicable to the flow measurement of natural gas whose composition is within the range defined by GB17820 and GB/T37124 and whose real relative density is 0.55~0.80.
GB/T 21391-2022 Referenced Document
- GB/T 11062 Natural gas—Calculation of calorific values, density, relative density and Wobbe indices from composition
- GB/T 13384 General specifications for packing of mechanical and electrical product
- GB/T 13610 Analysis of natural gas composition—Gas chromatography
- GB/T 4208 Degrees of protection provide by enclosure (IP code)
GB/T 21391-2022 history
- 2022 GB/T 21391-2022 Measurement of natural gas flow by turbine gas meters
- 2008 GB/T 21391-2008 Measurement of natural gas flow by turbine meters
