5IEC/TC13. IEC 62053 - 11:2003. Electricity metering equipment Particular requirements Part 11 : Electromechanical meters for active energy(classes 0. 5,1 and 2). 2003.
6IEC/TC13. IEC 62053-21:2003. Electricity metering equipment Particular requirements Part 21 : Static meters for active energy( classes 1 and 2). 2003.
7CENELEC/TC13. EN 50470 -2:2006. Electricity metering equipment Part 2: Particular requirements Electremechanical meters for active energy( classes A and B). 2006.
8CENELEC/TC13. EN 50470 - 3:2006. Electricity metering equipment Part 3 : Particular requirements Static meters for active energy (classes A,B and C). 2006.
9OIML/TC12. OIML International Recommendation 46 electricity meters(Draft Revision 3). 2005.
