This document specifies the term definitions, requirements, test methods, inspection rules, marking, packaging, transportation and storage of ultrasonic heat meters based on 5G narrowband Internet of Things. This document applies to the design, production and inspection of ultrasonic heat meters based on 5G narrowband Internet of Things.
T/QGCML 2930-2024 history
2024T/QGCML 2930-2024 Ultrasonic heat energy meter based on 5G narrowband Internet of Things