The base metal shall be sufficiently free from surface defects, caused by machining cutting, scratching, polishing, buffing, roughening, bending, stretching, deforming, rolling, sandblasting, vaporblasting, etching, heat treatment condition, alloy chemistry imbalance and inclusions, that will cause test panels or parts not to meet all applicable requirements for the type and class of anodize required. It shall be subjected to such cleaning, etching and anodizing procedures as necessary to yield coatings meeting all requirements of this specification.