Textiles. Tests for colour fastness. Grey scale for assessing change in colour (including half-steps)
纺织品 色牢度测试 用于评估颜色变化的灰阶(包括半步)
发布日期:
1990-07-15
十对白色或灰色区域,呈现五度的对比度,呈几何级数增加。交叉引用:BS 1006VAT适用于本项目。
Ten pairs of areas in white or grey exhibiting five degrees of contrast which increase geometrically.Cross References:BS 1006VAT is applicable to this item.