GSO ISO 4630:2021由GSO 发布于 2021-07-01。
GSO ISO 4630:2021在国际标准分类中归属于: 87.060.20 涂料粘合剂。
GSO ISO 4630:2021 透明液体 通过加德纳色标估计颜色的最新版本是哪一版？
最新版本是 GSO ISO 4630:2021 。
ISO 4630:2015 specifies a method for estimating the colour of optically clear, yellow/brownish coloured liquid products by means of the Gardner colour scale using colour-measuring instruments. The method uses the Gardner colour scale described in Annex A. It is applicable to drying oils, varnishes and solutions of fatty acids, polymerized fatty acids, resins, tall oil, tall oil fatty acids, rosin and related products. The results might be invalid if other products are tested. The method described provides a more precise way of measuring Gardner colour than a visual sample comparison using human eyes. It is applicable to products having colours from Gardner 1 to Gardner 18. The Gardner scale is not applicable to products with colours darker than 18. For products with colours lighter than Gardner 1 the method specified in ISO 6271 applies.
1 主题内容与适用范围 本标准规定了用加德纳色度标准(色标)测定环氧树脂颜色的方法。 本标准适用于环氧树脂颜色的测定。也适用于透明液体或颜色与加德纳色标相近的液体颜色的测定。 2 方法提要 将试样的溶液与加德纳色标进行目测比较，以与试样颜色最接近的某色标号，表示试样的颜色。 3 试剂和溶液 分析方法中，除特殊规定外，只使用分析纯试剂和蒸镏水。...
水原来是一种无色、无臭、无味的透明液体，当水中存在着某些物质时（比如一些可溶性的有机物、部分无机离子和有色悬浮微粒等），都可能会使水变为有色的情况，也就是水会出现一定的颜色即为色度。水质色度是对天然水或处理后的各种水进行颜色定量测定时的指标。色度是对水的感官性指标之一。...
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