BS EN 1557-1997 表面活性剂.运送过程中光学透明彩色液体(产品)X、Y、Z三色值色度特征

标准号：BS EN 1557-1997
中文标准名称：表面活性剂.运送过程中光学透明彩色液体(产品)X、Y、Z三色值色度特征
英文标准名称：Surface active agents - Colorimetric characterization of optically clear coloured liquids (products) as X, Y, Z tristimulus values in transmission
标准类型：G73
发布日期：1997/5/15 12:00:00
实施日期：1997/5/15 12:00:00
中国标准分类号：G73
国际标准分类号：17.180.20;71.100.40
适用范围：This European Standard specifies a method for the colorimetric characterization of optically clear, slightly tinted liquids (products) by broad-band measurement of pure transmittance with tristimulus value measuring filters as TX, TY and TZ. Since the tristimulus value measuring filters of simple tristimulus colorimeters meet the Luther condition to a limited extent only it is necessary to deliberately restrict the liquids (products) to slightly tinted ones in order to be able to measure them sufficiently exactly with a single calibration against uncoloured distilled water. If the colour of heavily coloured solutions is measured with simple tristimulus colorimeters, it is necessary to calibrate the instrument with a spectrometrically measured standard of very similar colour.