This standard specifies terms and definitions, technical characteristic, requirement, test method, test rules, marking, packing, and storage of heat meters.
This standard is applicable to heat meters which the flowing medium is water, the temperature is 2°C~150℃, and the pressure is not larger than 2.5 MPa.
1 Scope
2 Normative References
3 Terms and Definitions
4 Technical characteristics
5 Requirements
6 Test Method
7 Test rules
8 Marking, Packing and Storage
Annex A (Informative) Water density and enthalpy value
Annex B (Normative) Photoelectric interface
Annex C (Normative) Structure and Installation of Platinum Resistance Temperature Sensor
Annex D (Normative) Test and calculation for metering accuracy of heat meter
Annex E (Normative) Test and calculation for metering accuracy of calculator
Annex F (Normative) Test and calculation for metering accuracy of temperature sensor
Annex G (Normative) Test and calculation for metering accuracy of flow sensor
