This standard specifies the method for the determination of the shade and intensity of neutral dyes. This standard applies to the determination of the shade and intensity of neutral dyes.
GB/T 1866-2003 history
2012GB/T 1866-2012 Neutral dyes.Determination of dyeing shade and relative strength
2003GB/T 1866-2003 Neutral dyes-Determination of dyeing shade and relative strength