This International Standard specifies the requirements for in-sulated pins used to pin parts in the secondary circuit of resistance welding equipment, or other live equipment, which need to be insulated from each other.
ISO 9312:1990 history
2013ISO 9312:2013 Resistance welding equipment.Insulated pins for use in electrode back-ups
1990ISO 9312:1990 Resistance welding equipment; insulated pins for use in electrode back-ups