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| Property |
ASTM
Method |
Glass |
TYRIL
SAN |
Polymethyl
methacrylate |
Cellulose
acetate |
CALIBRE
polycarbonate |
Refractive
Index |
D 542 |
1.52 |
1.57 |
1.49 |
1.50 |
1.58 |
Light
Transmission |
D 1003 |
92 |
87 |
92 |
89 |
89 |
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