Standard [WITHDRAWN]
DIN EN ISO 12625-7:2014-08
Tissue paper and tissue products - Part 7: Determination of optical properties - Measurement of brightness and colour with D65/10° (outdoor daylight) (ISO 12625-7:2014); German version EN ISO 12625-7:2014
- German title
- Tissue-Papier und Tissue-Produkte - Teil 7: Bestimmung der optischen Eigenschaften - Brightness- und Farbmessung mit Lichtart D65/10° (Außentageslicht) (ISO 12625-7:2014); Deutsche Fassung EN ISO 12625-7:2014
- Publication date
- 2014-08
- Original language
- German
- Pages
- 20
- Publication date
- 2014-08
- Original language
- German
- Pages
- 20
- DOI
- https://dx.doi.org/10.31030/2080601
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Optical measurements are affected by the geometry of the instruments used and by the texture of the material. The design of the instrument to be used according to this part of ISO 12625, and the routine to be adopted for its calibration are specified in ISO 2469. The optical properties are related to the visual appearance of the material. Therefore, although optical properties are intrinsic properties of tissue paper, they are not functional properties. This part of ISO 12625 specifies testing procedures for the instrumental determination of brightness and colour of tissue paper and tissue products. It also gives specific instructions for the preparation of test pieces (single-ply and multi-ply products) and for the optical measurements of products, where special precautions can be necessary.
This document replaces DIN EN ISO 12625-7:2007-06 .
This document has been replaced by: DIN EN ISO 12625-7:2021-12 .