ANSI/ASHRAE 125-1992 (RA 2011)
Standard 125 provides a method of testing factory-assembled thermal energy meters for measuring the thermal energy added to or subtracted from a liquid stream supplying an HVAC system. This 2011 reaffirmation of ASHRAE Standard 125-1992 updates references, reclassifies Appendix A as normative, updates disclaimers, and makes minor corrections to the text.Keywords: thermal energy meters, testing