The SSPC-VIS 4/NACE VIS 7 shows 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
• Additional photos that depict the appearance light, moderate, and heavy flash rust after cleaning
• Cleanliness requirements for conditions depicted are defined
• Joint SSPC/NACE surface preparation specification for high and ultra high pressure water jetting (SP 12/NACE 5)