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ISO 12625-7:2021

Tissue paper and tissue products — Part 7: Determination of optical properties — Measurement of brightness and colour with D65/10° (outdoor daylight) ISO 12625-7:2021

Publication date:   Aug 27, 2021

General information

60.60 Standard published   Aug 27, 2021

ISO

ISO/TC 6/SC 2 Test methods and quality specifications for paper and board

International Standard

85.080.20   Tissue paper

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Scope

This document specifies testing procedures for the instrumental determination of brightness and colour of tissue paper and tissue products viewed under outdoor daylight conditions. It also gives specific instructions for the preparation of test pieces (single-ply, multi-ply products) and for the optical measurements of products, where special precautions can be necessary.
NOTE       The properties called ISO brightness and colour with C/2° (indoor daylight) are measured with an instrument adjusted to a much lower UV content than that specified in this document. The measurements of ISO brightness and colour with C/2° (indoor daylight) are described in ISO 12625-15.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 12625-7:2014

NOW

PUBLISHED
ISO 12625-7:2021
60.60 Standard published
Aug 27, 2021