Tissue paper and tissue products - Part 15: Determination of optical properties - Measurement of brightness and colour with C/2° (indoor daylight) illuminant
NORM herausgegeben am 1.4.2023
Bezeichnung normen: ČSN EN ISO 12625-15
Zeichen: 500371
Katalog-Nummer: 516555
Ausgabedatum normen: 1.4.2023
Zahl der Seiten: 24
Gewicht ca.: 72 g (0.16 Pfund)
Land: Tschechische technische Norm
Kategorie: Technische Normen ČSN
This document specifies testing procedures for the instrumental determination of brightness and colour of tissue paper and tissue products viewed in indoor 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 D65 brightness and colour are measured with an instrument adjusted to a much higher UV content than that specified in this document