标准摘要
[中文适用范围]： 该文件规定了使用漫反射方法通过纸张背板对纸浆纸或纸巾产品进行不透明度仪器测定的试验程序。该文件包含了单层和多层产品的测试样品制备的具体说明，在某些情况下可能需要特殊的准备/程序。只要入射到试样上的辐射的UV含量已被调整以符合CIE照明体C，该方法可用于确定含有荧光增白剂的纸浆纸和纸巾产品的不透明度。 [外文原描述]： 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.
英文名称Tissue paper and tissue products — Part 16: Determination of optical properties — Diffuse reflectance method for opacity (paper backing)