1970NF C61-314:2017 Plugs and socket-outlets for household and similar purposes - 6 A /250 V and 16 A/250 V systems
2008NF C61-314:2008 Plugs and socket-outlets for household and similar purposes - 6 A / 250 V and 16 A / 250 V systems.
2003NF C61-314:2003 Plugs and socket-outlets for household and similar purposes - 6 A / 250 V and 16 A / 250 V systems.
1981NF C61-320:1981 Electrical accessories for domestic and similar purposes. Plugs and socket-outlets and cable couplers rated 6 amperes and 250 volts.