ASTM D 4417 is associated with what type of surface?

ASTM D 4417 is a standard test method specifically related to measuring the surface profile of abrasive blast cleaned steel. This standard provides guidelines for the measurement and evaluation of the surface profile that is created when steel surfaces are prepared using abrasive blasting techniques. The surface profile is an important factor in ensuring adequate adhesion of coatings, as it affects how well a coating can bond to the substrate.

For this reason, ASTM D 4417 focuses on blast cleaned steel surfaces, ensuring that inspectors can accurately assess the roughness, which is crucial for the performance of protective coatings. The procedures outlined in this standard include techniques such as using a depth gauge or replica tape to quantify the profile height, enabling quality control in coating applications on steel surfaces.