This standard is Radio-frequency connectors. Part 19 : R.F coaxial connectors with inner diameter of outer conductor 2.08 mm (0.082 in) with snap coupling - Characteristic impedance 50 ohms (Type SSMB); Corrigendum 1.
IEC 60169-19/COR1:1995 history
1970IEC 60169-19:1985/COR1:1995 Corrigendum 1 - Radio-frequency connectors. Part 19: R.F. coaxial connectors with inner diameter of outer conductor of 2.08 mm (0.082 in) with snap coupling. Characteristic impedance 50 ohms (Type SSMB)
1985IEC 60169-19:1985 Radio-frequency connectors. Part 19 : R.F coaxial connectors with inner diameter of outer conductor 2.08 mm (0.082 in) with snap coupling - Characteristic impedance 50 ohms (Type SSMB)