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SSPC-VIS 4/NACE VIS 7 Guide and Reference Photographs for Steel Surfaces Prepared by Waterjetting shows a total of six different steel surfaces (two uncoated and four previously coated) before and after waterjetting.

Photographs illustrate four separate degrees of cleaning (WJ 1, WJ 2, WJ 3, and WJ 4) for each initial condition, with additional photos that depict the appearance of light, moderate, and heavy flash rust after cleaning. Also contains a written guide to the use of reference photographs and additional explanatory notes. Cleanliness requirements for conditions depicted are defined by the joint SSPC/NACE surface preparation specification for high- and ultra-high-pressure water-jetting (SP 12/NACE 5)