01858nam a2200313Ia 4500001000700000003000600007005001700013007001500030008004100045040002000086042000800106074000900114086002000123245017200143246004700315260007600362300002400438490003600462500002700498500003600525520031200561538020500873538027601078650003801354650002901392700002701421710004301448830005301491269309OCoLC20160527194017.0co cg---------030128s2002    vau    f   m f      eng c  aGPOcGPOdOCLCQ  apcc  a06240 aI 19.16:1635/CD04aThe effect of selected cleaning techniques on Berkshire Lee marbleh[electronic resource]ba scientific study at Philadelphia City Hallcby V.G. Mossotti ... [et al.].30aScientific study at Philadelphia City Hall  a[Reston, Va.]bU.S. Dept of the Interior, U.S. Geological Surveyc2002.  a1 CD-ROMc4 3/4 in.1 aProfessional paperv16352Local  aTitle from disc label.  aShipping list no.: 2003-0003-E.  aA scientific investigation of the effects of eight different cleaning techniques on the Berkshire Lee marble component of the facade of the East Center Pavilion at Philadelphia City Hall. The eight cleaning techniques evaluated were power wash, misting, gommage, combination, Armax, JOS, laser, and dry ice.  aSystem requirements for Macintosh: Macintosh PowerPC processor; MAC OS software version 8.6, 9.0.4, 9.1, 9.2, or OS X (Some features of Acrobat 5.0 may not be available for OS 8.6 and OS X); 64MB RAM.  aSystem requirements for Windows: Intel Pentium or equivalent processor; Microsoft Windows 95 OSR 2.0, Windows 98 SE, Windows Millennium, Windows NT 4.0 with Service Pack 5, or Windows 2000 or Windows XP; 64MB of RAM; Adobe Acrobat Reader (included on disc); CD-ROM drive. 0aBuilding stonesxCleaning.2Local 0aMarblexCleaning.2Local1 aMossotti, V. G.2Local2 aU.S. Geological Survey Library.2Local 0aU.S. Geological Survey professional paperv1635.