FprEN ISO 12625-16

Tissue paper and tissue products - Part 16: Determination of optical properties - Diffuse reflectance method for opacity (paper backing) (ISO/FDIS 12625-16:2024) FprEN ISO 12625-16

Publication date:   May 25, 2023

General information

60.55 Ratification completed (DOR)   May 4, 2024

CEN

CEN/TC 172 Pulp, paper and board

European Norm

85.080.20   Tissue paper

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Scope

This document specifies the testing procedures for the instrumental determination of the opacity of tissue paper or tissue products by diffuse reflectance using a paper backing.
This document contains specific instructions for the preparation of test pieces of single-ply and multi-ply products, where special preparation/procedures might be necessary.
It can be used to determine the opacity of tissue paper and tissue products containing fluorescent whitening agents, provided the UV content of the radiation incident on the test piece has been adjusted to conform to that in the CIE illuminant C using a fluorescent reference standard provided by an authorized laboratory as described in ISO 2470-1.

Life cycle

PREVIOUSLY

PUBLISHED
EN ISO 12625-16:2015

NOW

IN_DEVELOPMENT
FprEN ISO 12625-16
60.55 Ratification completed (DOR)
May 4, 2024