COLOUR, COLOUR TESTS, EFFLUENTS (SEWAGE), MILLS, PAPER, PAPER PULPS, PAPERTECHNOLOGY, TEST EQUIPMENT, TESTING, TRADE EFFLUENTS
适用范围
1.1
This method of measuring colour can be applied to sulphate (kraft) and sulphite
pulp mill effluents, providing their colours closely match the colour of the
standard platinum-cobalt solution. The method cannot be applied to effluents
of unusual colour, i.e., to dyed solutions. 1.2
The colur of an effluent is expressed in arbitrary colour units. One colour
unit (C.U.) is equivalent to the absorption of light at the wavelength of 465
nm by 1 mg/L of platinum in the platinum-cobalt standard solution.