T/ZZB 0348-2018 Ultrasonic gas meter
T/ZZB 0348-2018 Ultrasonic gas meter
Basic Information
Scope
Main technical content: This standard specifies the terms, definitions, and symbols of ultrasonic gas meters, basic requirements, specification parameters, technical requirements, test methods, inspection rules, packaging, transportation and storage, and quality commitments. This standard applies to the design, manufacture, and testing of ultrasonic gas meters (hereinafter referred to as gas meters) with a maximum working pressure not exceeding 50kPa, a maximum flow rate not exceeding 160m3/h, a minimum working temperature range of -25℃ to +55℃, and a grade of 1.0 and 1.5. These meters are battery-powered and installed in enclosed areas (indoors or outdoors with protective measures) with minimal or no vibration, impact, condensed water, or electromagnetic interference. Unless otherwise specified, the pressure mentioned in this standard refers to the pressure relative to atmospheric pressure (gauge pressure).