ISO/FDIS 12625-16
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Tissue paper and tissue products — Part 16: Determination of optical properties — Diffuse reflectance method for opacity (paper backing)
Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users
03-05-2024
English, French
24-01-2024
This document specifies the testing procedures for the instrumental determination of the opacity of tissue paper or tissue products by diffuse reflectance using a paper backing.
This document contains specific instructions for the preparation of test pieces of single-ply and multi-ply products, where special preparation/procedures might be necessary.
It can be used to determine the opacity of tissue paper and tissue products containing fluorescent whitening agents, provided the UV content of the radiation incident on the test piece has been adjusted to conform to that in the CIE illuminant C using a fluorescent reference standard provided by an authorized laboratory as described in ISO 2470-1.
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