hazen unit meaning in English

黑曾色度单位

Chemical reagent - general method for the measurement of colour in hazen units
化学试剂色度测定通用方法
Hazen - - color determination method of liquid chemicals hazen unit - platinum - cobalt scale
液体化学产品颜色测定法
Chemical analysis of organic products . visual evaluation of coloration in hazen units
有机产品的化学分析.用哈森单位进行染色的目测评价
- testing methods for colour of chemical products - part 1 : estimation of colour in hazen units platinum - cobalt scale
化学产品颜色的试验方法.第1部分:海森单位颜色估计