TAPPI UM 411:2015(R2025)
Current
The latest, up-to-date edition.
Approximate Opacity of Paper Using 45°/0° Geometry Reflectometer
Hardcopy , PDF
English
31-07-2025
The object of this method is to determine paper opacity by measuring the ratio of the reflectance of paper backed by black and white using an instrument equivalent to the geometry of the TAPPI brightness measurement instrument.
| DocumentType |
Useful Method
|
| Pages |
4
|
| PublisherName |
Technical Association of the Pulp & Paper Industry
|
| Status |
Current
|
| Supersedes |
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