1995DS/EN 60172:1995 Test procedure for the determination of the temperature index of enamelled winding wires
1990DS/IEC 172:1990 Test procedure for the determination of the temperature index of enamelled winding wires
DS/IEC 172:1990 Test procedure for the determination of the temperature index of enamelled winding wires was changed to DS/EN 60172:1995 Test procedure for the determination of the temperature index of enamelled winding wires.