1993GOST 25242-1993 Digital instruments to measure immitance parameters. General technical requirements and methods of tests
1992GOST R 50355-1992 Digital instruments to measure immittance parameters. General technical requirements and methods of tests
0000 GOST 4.190-1985
1982GOST 25242-1982 A.C. Digital automatic balanced bridges. General specifications
GOST R 50355-1992 Digital instruments to measure immittance parameters. General technical requirements and methods of tests has been changed from GOST 25242-1982 A.C. Digital automatic balanced bridges. General specifications.