Which cleaning standard represents commercial cleaning with moderate grade abrasive?

The cleaning standard that represents commercial cleaning with moderate grade abrasive is SSPC-SP 6. This standard, known as "Commercial Blast Cleaning," requires surfaces to be cleaned to remove all visible oil, grease, dirt, dust, mill scale, rust, and any other foreign matter. The use of a moderate grade of abrasive ensures that the surface is adequately prepared for painting by achieving a specific level of cleanliness while leaving a surface profile conducive to paint adhesion.

SSPC-SP 6 is typically utilized when a reasonable degree of surface cleanliness is necessary without extensive removal of existing coatings, which makes it practical for various commercial applications. This level of cleaning is essential for ensuring that paint or coatings can adequately bond with the substrate, thereby extending the lifespan of the coating system.

In contrast, other standards like SSPC-SP 5 and SSPC-SP 10 denote higher levels of surface preparation, where SSPC-SP 5 refers to "White Metal Blast Cleaning," a more stringent standard, while SSPC-SP 10 denotes "Near-White Metal Blast Cleaning," which requires removal of almost all rust, mill scale, and old coatings. SSPC-SP 14 relates to "Industrial Power Tool Cleaning," which also does not align with the definition of commercial cleaning with a