AWS C2.21/C2.21M:2015

This standard describes the essential elements of a procedure to verify performance of equipment and systems used for thermal spraying. These equipment and systems include the thermal spray gun, gas console, control apparatus, and feedstock supply system. Other external systems and apparatus such as a gas or fuel management system, sound abatement, dust collection, automation, fire suppression, and finishing systems are beyond the scope of this document.

This specification does not address all of the thermal spray process variations or equipment configurations. However, the principles presented may be a starting point for establishing a customized verification procedure. It is not the intent of this standard to address process validation; to ensure a process is producing, or capable of producing, desired coatings. This specification does not address all of the essential process variables necessary for thermal spray process qualification. This specification does not address equipment design standards, provisions, requirements, codes, or regulations that may apply to the thermal spray equipment or its installation.

The standard can be applied at the time of installation and any other times or intervals the User deems appropriate to ensure the equipment is capable of operating to the manufacturer's specifications or other specifications deemed applicable by the User.