Найдено: 5
Overview - ISO 17089-1:2019 (Ultrasonic gas flowmeters for custody transfer and allocation measurement) ISO 17089-1:2019 sets international requirements and recommendations for transit-time ultrasoni…
1 Scope This part of ISO 17089 specifies requirements and recommendations for ultrasonic gas flowmeters (USMs), which utilize the transit time of acoustic signals to measure the flow of single phase…