FEBRUARY 6 2003
12.22.5. Photographic Enlargements. Photographic enlargements or "photostats" shall be
executed on matte or semi-gloss prepared paper. The enlarged image shall be sharp, clean and
free of chemical discoloration.
12.22.6. Graphic Blasting. Graphic blasted material shall be sandblasted to a uniform depth of
1/32" leaving raised text and Braille. The background shall be blasted utilizing the appropriate
texture of blasting silica to achieve the proper consistent depth. Careful control of nozzle
pressure, distance and angle is necessary to prevent distortion. All blasting shall be executed in
such a manner that all edges and corners of finished copy are true and clean. Copy with rounded
positive negative corners, edge building-up or bleeding shall not be used.
Section 12H--Interior Signs
12.23. Interior Signs Details. See Figures 12.12 through 12.20.