This guide ( Part 1 ) covers procedure for testing, calibration and maintenance of single phase whole current watt meters for Class 2 complying with IS : 722 (Part 2)-1977*.
This guide does not cover installation of meters.
IS 9792 Pt.1-1987 history
1988IS 9792 Pt.1-1987 AC Electric Meter Testing, Calibration and Maintenance Guide Part 1 Single Phase Full Current Wattmeter Class 2.0