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Hand tool cleaning is a method of removing loosely adherent foreign matter from steel substrates using hand-held tools without supplemental power.
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Power tool cleaning is a method of preparing steel surfaces by the use of power-assisted hand tools. It does not include the use of laser and heat-induction technologies.
This standard, SSPC-SP 5 (WAB)/NACE WAB-1, defines the "White Metal" level of surface cleanliness for wet abrasive methods. One of five wet abrasive (WAB) levels: (White Metal, Near-White Metal, Commercial, Industrial, Brush-Off)
Requirements for "White Metal" - one of five levels of cleanliness of steel surfaces achieved by blast cleaning with the use of abrasives. (White Metal, Near-White Metal, Commercial, Industrial, Brush Off)
This standard, SSPC-SP 6 (WAB)/NACE WAB-3, defines the "Commercial" level of surface cleanliness for wet abrasive methods. One of five wet abrasive (WAB) levels: (White Metal, Near-White Metal, Commercial, Industrial, Brush-Off)
This standard, SSPC-SP 7 (WAB)/NACE WAB-4, defines the "Brush-Off" level of surface cleanliness for wet abrasive methods. One of five wet abrasive (WAB) levels: (White Metal, Near-White Metal, Commercial, Industrial, Brush-Off)
Requirements for "Brush-Off" - one of five levels of cleanliness of steel surfaces achieved by blast cleaning with the use of abrasives. (White Metal, Near-White Metal, Commercial, Industrial, Brush Off)
This standard is one of a set of three standards that define levels of surface cleanliness for concrete substrates pre- pared using abrasive blast cleaning. The cleanliness levels are based on 1) the extent of removal of the existing coating and 2) the extent to which surface air voids are opened. Thorough Blast Cleaning (SSPC-SP CAB-1), defines the highest level of cleanliness. The other two standards in the set, Intermediate Blast Cleaning (SSPC-SP CAB-2) and Brush Blast Cleaning (SSPC-SP CAB-3), define lesser levels of concrete cleanliness. All three levels of cleanliness require complete removal of all unsound surface materials, all efflorescence, and all laitance.
This technical report discusses equipment, procedures, materials, and the resulting substrate conditions involved in a variety of WAB cleaning methods currently available for commercial use. It also discusses the effect that the water present with these wet cleaning methods has on achieving the defined degree of cleaning of steel surfaces in accordance with the wet abrasive blast cleaning standards found in the list of Referenced Standards and Other Consensus Documents. It is intended for use primarily by specifiers, owners, painting contractors, inspectors, and others involved in surface preparation of industrial structures.
This report was originally issued in 1998 and has been revised to include additional configurations of equipment setup as well as current (2022) developments in the design of wet abrasive blast cleaning systems and nozzles. This TR provides a foundation to assist users to determine the quantity and quality of water, abrasive, and air.