Section SPS 372.06 - Cleaning methods(1) ABRASIVE CLEANING METHODS. Except as specified in sub. (2), no person may use an abrasive cleaning method on the exterior of a qualified historic building. An abrasive method of cleaning includes water that is delivered with a pressure greater than 1000 pounds per square inch (psi).(2)OTHER USES AND METHODS. (a) An abrasive cleaning method may only be used on exterior cast iron elements that are part of a qualified historic building.(b) A cleaning method that uses a cleaning agent that is dissolvable in water shall not be considered an abrasive cleaning method provided the water is delivered with a pressure not exceeding 1000 psi.Wis. Admin. Code Department of Safety and Professional Services SPS 372.06
CR 05-064: cr. Register February 2006 No. 602, eff. 3-1-06.