JJG 983-2003
单机型和集中管理分散型电话计费器检定仪检定规程
Verification Regulation of Verifying Instrument for Single and Dispersion Controlled Centrally Telephone Accounter
2003-11-24
JJG 107-2002
单机型和集中管理分散计费型电话计时计费器检定规程
Verification Regulation of Single and Dispersion Control Centrely Telephone Accounters
2002-05-16
JJG 1065-2011
IC卡节水计时计费器检定规程
IC Card Timing and Charging Device for Water Saving
2011-04-12