National Metrological Technical Specifications of the People's Republic of China
Latest
JJF 1245.2-2019
JJF 1245.2-2019 history
2019JJF 1245.2-2019 Program of Pattern Evaluation of Fixed AC Electricity Meters—Software Requirements
2010JJF 1245.2-2010 Program of Pattern Evaluation of Electricity Meters-Particular Requirements- Electromechanical Meters for Active Energy (classes 0.5, 1 and 2)