NBN EN 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)

ACTIVE

About this standard

Languages
English and French
Type
NBN
Standards committee
CEN/TC 172
Status
ACTIVE
Publication date
18 September 2021
Replaces
NBN EN ISO 12625-7:2014
ICS Code
85.080.20 (Tissue paper)
Withdrawn Date

About this training

Summary

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.