SASO ISO 17089-1:2020 ISO 17089-1: 2019 Measurement of fluid flow in closed conduits — Ultrasonic meters for gas — Part 1: M
![ISO 17089-1:2019(en), Measurement of fluid flow in closed conduits — Ultrasonic meters for gas — Part 1: Meters for custody transfer and allocation measurement ISO 17089-1:2019(en), Measurement of fluid flow in closed conduits — Ultrasonic meters for gas — Part 1: Meters for custody transfer and allocation measurement](https://www.iso.org/obp/graphics/std/iso_std_iso_17089-1_ed-2_v1_en/fig_2.png)
ISO 17089-1:2019(en), Measurement of fluid flow in closed conduits — Ultrasonic meters for gas — Part 1: Meters for custody transfer and allocation measurement
![ISO 17089-1:2010(en), Measurement of fluid flow in closed conduits - Ultrasonic meters for gas — Part 1: Meters for custody transfer and allocation measurement ISO 17089-1:2010(en), Measurement of fluid flow in closed conduits - Ultrasonic meters for gas — Part 1: Meters for custody transfer and allocation measurement](https://www.iso.org/obp/graphics/std/iso_std_iso_17089-1_ed-1_v1_en/fig_2.png)
ISO 17089-1:2010(en), Measurement of fluid flow in closed conduits - Ultrasonic meters for gas — Part 1: Meters for custody transfer and allocation measurement
BS ISO 17089-1:2019 Measurement of fluid flow in closed conduits. Ultrasonic meters for gas Meters for custody transfer and allocation measurement - European Standards
![The Ability to Confirm Metrological Parameters of Ultrasonic Gas Meters under Operating Conditions after Calibration on Air at Atmospheric Pressure The Ability to Confirm Metrological Parameters of Ultrasonic Gas Meters under Operating Conditions after Calibration on Air at Atmospheric Pressure](https://lirp.cdn-website.com/23912a14/dms3rep/multi/opt/2_hb0lh8TMTOivyGMjmelQ-967x685-640w.jpg)
The Ability to Confirm Metrological Parameters of Ultrasonic Gas Meters under Operating Conditions after Calibration on Air at Atmospheric Pressure
![The Ability to Confirm Metrological Parameters of Ultrasonic Gas Meters under Operating Conditions after Calibration on Air at Atmospheric Pressure The Ability to Confirm Metrological Parameters of Ultrasonic Gas Meters under Operating Conditions after Calibration on Air at Atmospheric Pressure](https://lirp.cdn-website.com/23912a14/dms3rep/multi/opt/3_agGv9jxlSkuJkyOuvTuT-853x334-640w.jpg)