The act of determining the suitability of some material or component for its intended purpose using techniques that do not affect it serviceability

Containing no iron. Example: Aluminum, copper, copper alloys.

An arc established between the electrode and the constricting nozzle of the plasma arc torch. The workpiece is not in the electrical circuit.

A ?consumable? torch part containing a hole or orifice through which the arc passes.

The diameter of the nozzle through which the plasma arc passes. (Also referred to as orifice diameter).