Name: TAPPI UM 411:2015(R2025) - Approximate Opacity of Paper Using 45°/0° Geometry Reflectometer
Brand: Technical Association of the Pulp & Paper Industry

Approximate Opacity of Paper Using 45°/0° Geometry Reflectometer

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-07-2025

Publisher

Technical Association of the Pulp & Paper Industry

€44.00

Excluding VAT

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	TAPPI UM 411:2015

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TAPPI UM 411:2015(R2025)

Approximate Opacity of Paper Using 45°/0° Geometry Reflectometer

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