BS 3900-D4(2006) : 2006现行
PAINTS AND VARNISHES - COMPARISON OF CONTRAST RATIO (HIDING POWER) OF PAINTS OF THE SAME TYPE AND COLOUR
出版：British Standards Institution
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基本信息
标准编号： BS 3900-D4(2006) : 2006
标准类别：Standard
出版单位：British Standards Institution
标准页数：0
标准简介
States the standard method to be used in comparing the contrast ratios given by paint films of white or light colours, of reflectance factor greater than 40 percent, dried at normal air temperatures and applied at approximately equal wet film thickness to black and white substrates.
本标准替代的旧标准
