Which of the following cleaning methods is considered an SSPC SP1 pre-cleaning method?

The correct choice for an SSPC SP1 pre-cleaning method is the solvent wipe with cloth or rag because SSPC SP1 provides guidelines for the initial cleaning of surfaces to remove contaminants such as oils, greases, dirt, and other residues before any coating application. A solvent wipe involves using a cloth or rag soaked in an appropriate solvent to clean the surface effectively, making it ready for further preparation and coating.

This method is essential as it ensures that the surface is adequately prepared by removing surface contaminants that can interfere with the adhesion of paints and coatings. It is a simple yet effective approach that can be performed on various surfaces, making it widely applicable in pre-coating operations.

In contrast, other methods such as abrasive blasting, power washing, and dry ice blasting fall under different cleaning categories and are typically used for more intensive surface preparation rather than the initial pre-cleaning as per SSPC SP1 standards. These methods might involve more aggressive techniques or equipment that aren't aligned with the specific, lighter cleaning intent of SSPC SP1.