UNE EN ISO 12625-7:2022
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)
Papel tisú y productos de tisú. Parte 7: Determinación de las propiedades ópticas. Medición de la blancura y el color con iluminante D65/10° (luz diurna exterior). (ISO 12625-7:2021).
| Standard number: | UNE EN ISO 12625-7:2022 |
| Pages: | 21 |
| Released: | 2022-09-28 |
| Status: | Standard |
| Pages (Spanish): | 20 |
UNE EN ISO 12625-7:2022
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 may 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.