Sulphuric acid colour is an important quality index for 2 ethylhexanol (EH) and a difficult point in process control.

硫酸色度是辛的一项重要质量指标，也是生控制中的一个难点。

Based on the colorimetry mechanism,the meaning oftrichroism is studied,as well as the synthetic and selecting principles of trichroism ofreactive and disperse dyes in particular.

本文从色度学原理说明三原色意义,并详细论述活性染料及分散染料三原色的合成和筛选原则。

Results showed that internal electrolysis pre-treatment of yeast-producing wastewater were effective on the removal of COD and colority.What is more important is that the biod...

确定条件下试验,内电解对色度、COD的去除有一定的效果,重要的是提高了废水的可生化性,有利于生物处理。

The method for determine sewage's chroma is method of dilution multiple.It's easy to bring in error when using eyes to determine the diluted sample is whether achromatism or not.

污水色度的测定一般采稀释倍数法,该方法人眼判定稀释后的水样是否接近无色时容易引起误差。