Документы

European Committee for Standardization

Tissue paper and tissue products - Part 16: Determination of optical properties - Opacity (paper backing) - Diffuse reflectance method
 N EN ISO 12625-16

Annotation

This part of ISO 12625 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 part of ISO 12625 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.

This part of ISO 12625 is not applicable to coloured tissue paper and tissue products which incorporate fluorescent dyes or pigments.

Автоматический перевод:

Тонкая бумага и продукты ткани - Часть 16: Определение оптических свойств - Непрозрачность (бумажная поддержка) - метод Рассеянного отражения

Эта часть ISO 12625 указывает процедуры тестирования для инструментального определения непрозрачности тонкой бумаги или продуктов ткани рассеянным коэффициентом отражения с помощью бумажной поддержки.