GOST 8.232-1977 State system for ensuring the uniformity of measurements. State special standard and all-union verification schedule for measuring means of frequency deviation
1997GOST 8.232-1997 State system for ensuring the uniformity of measurements. State verification schedule for means measuring the frequency deviation
1977GOST 8.232-1977 State system for ensuring the uniformity of measurements. State special standard and all-union verification schedule for measuring means of frequency deviation