This SAE Aerospace Standard (AS) is to be used as a supplement to AS7109. In addition to the requirements contained in AS7109@ the requirements contained herein shall apply to suppliers seeking Nadcap Coatings accreditation who are engaged in thermal spray. The requirements for accreditation for the following classes are contained herein. Class A - OXY/Fuel Powder Spray Class B - Plasma Thermal Spray Class C - HVOF Class D - Low Pressure Plasma Spray (LPPS) Class E - Electric Arc Wire Spray Class F - Oxy/Fuel Wire Spray Class G - D-GUN Spray The requirements for accreditation for the following coating groups are contained herein: High/low temperature Anti fretting coatings Thermal barrier coatings Abrasive seal coatings Abradable coatings Dimensional build-up coatings High temperature coatings (LPPS)