ISO 22891-2007 纸.通过漫反射系数测量测定透过率.pdf

标准号：ISO 22891-2007
实施状态：作废
中文名称：纸.通过漫反射系数测量测定透过率
英文名称：Paper - Determination of transmittance by diffuse reflectance measurement
发布日期：2007-07
被替代标准：ISO 22891-2013
代替标准：ISO/DIS 22891-2005
采用标准：BS ISO 22891-2007,IDT;NF Q03-106-2007,IDT
起草单位：ISO/TC 6
标准简介：This International Standard specifies a method for the calculation of transmittance based upon diffuse
reflectance measurements.
The use of the method is restricted to white and near-white translucent papers (see 3.9). If it is necessary to
determine the transmittance of papers which contain fluorescent whitening agents, the fluorescence emission
is eliminated using the prescribed UV cut-off filter.
NOTE This means that, although this International Standard refers to ISO 2469 which permits the use of both filter
colorimeters and abridged spectrophotometers, a filter colorimeter with no means of eliminating the emission of
fluorescence is not suitable for this type of measurement if fluorescent whitening agents are present.
文件格式：PDF
文件大小：268.59KB
文件页数：16
（以上信息更新时间为：2019-11-22）



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