Standard Specification for
Acrylic Prismatic Reflectors and
Embossed Aluminum Frames for Signs
AASHTO Designation: M 290-96 (2004)
This specification covers acrylic prismatic reflectors and embossed aluminum frames used in cut-out letters, symbols, and accessories on signing projects.
The values stated in SI units are to be regarded as the standard.
- T 257, Instrumental Photometric Measurements ofRetroreflective Materials and
2.2. ASTM Standards:
B 117, Salt Spray (Fog) Testing
B 209, Specification for Aluminum-Alloy Sheet and Plate
D 788, Classification System for Poly (Methyl Methacrylate) (PMMA) Molding and Extrusion Compounds
D 1730, Recommended Practices for Preparation of Aluminum and Aluminum-Alloy Surfaces for Painting
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