Specifications include, but are not limited to: 1. The successful contractor will apply a mild soapy water solution consisting of anionic and nonionic surfactants, ethyl alcohol, water, stabilizing agents, and perfume to the window glass while using a non-scratching cleaning device made of soft fabric over plastic or other previously acceptable means and methods as approved by the City. a. Where required, due to excessive residues, cleaners other than listed may be used with prior approval of the Building Maintenance Supervisor/project lead. 2. A window squeegee will be used in a vertical motion to remove the solution from the glass leaving a streak free and clear surface. a. The surrounding frames will be immediately wiped off (cleaned) using a soft nonabrasive cloth. b. Streaks or other blemishes will not be acceptable. 3. No trisodium phosphate (TSP) is to be used on windows which have solar reflective plastic film installed. a. The contractor shall be solely responsible for any damage to the window film as a result of the contractor’s cleaning process. 4. The contractor shall clean all sills, frames, and ledges, and shall include oiling of stainless steel mullions and frames in the TPU atrium area. 5. Contractor may identify windows with extensive etching and note location/description of such window and advise the Building Maintenance Supervisor/project lead.