Optical Analysis Standards and Test Methods
PAPER AND PAPERBOARD SUBSTRATES
| Test | ASTM # | ISO # | TAPPI # |
| Brightness of Paper | 2470-1/2470-2 | ||
| Color of Paper L*a*b | 5631-1/5631-2 | ||
| Color of Paper, Whiteness | 11476/11475 |
PLASTIC SUBSTRATES
| Test | ASTM # | ISO # | TAPPI # |
| Haze and Luminous Transmittance of Transparent Plastics | D1003 | 14782/13468-1 | |
| Index of Refraction | D542 | 489 | |
| Specular Gloss | D523 |