Which standard describes near-white commercial blast cleaning?

The standard that describes near-white commercial blast cleaning is indeed SSPC-SP6/NACE 3. This standard is critical in the coatings industry as it specifies the surface preparation required for substrates before the application of protective coatings.

Near-white commercial blast cleaning is defined as a method of surface preparation that aims to remove all visible rust, mill scale, and other contaminants to achieve a uniformly clean surface. This level of preparation leaves only a minimal amount of residue, typically no more than a very slight presence of staining, which is essential for ensuring optimal adhesion and performance of coatings.

This particular standard is widely accepted and referenced in industry practices because it sets the benchmark for achieving high-quality surface preparation, thereby enhancing the longevity and effectiveness of protective coatings. It provides specific criteria that are detailed enough to inform both inspectors and contractors about the expectations of surface quality, ensuring consistency in application across various projects.

In contrast, the other standards listed address different levels and methods of surface preparation. For example, SSPC-SP11 relates to power tool cleaning, which does not achieve the same level of cleanliness as SSPC-SP6/NACE 3, while SSPC-SP15 focuses on commercial grade power tool cleaning. SSPC-SP7, on the other hand, refers to a