This document stipulates the composition and principle, classification, general requirements, technical requirements, test methods, inspection rules, identification, packaging, transportation and storage of the ultrasonic water meter fully automatic calibration device (hereinafter referred to as the device). This document is applicable to fully automatic calibration devices for DN15, DN20, DN25, DN32, and DN40 caliber ultrasonic water meters.
T/SSM 3-2021 history
2021T/SSM 3-2021 Technical specification for automatic verification equipment of ultrasonic water meter