CAN/CGSB-9.2 No.4-1994
Methods of Testing Pulp and Paper Mill Effluents and Water - Colour of Pulp Mill Effluents

Standard No.

CAN/CGSB-9.2 No.4-1994

Release Date

1994

Published By

SCC

Latest

CAN/CGSB-9.2 No.4-1994

Replace By

85.020 85.040 13.060.70

Replace

COLOUR, COLOUR TESTS, EFFLUENTS (SEWAGE), MILLS, PAPER, PAPER PULPS, PAPERTECHNOLOGY, TEST EQUIPMENT, TESTING, TRADE EFFLUENTS

Scope

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.

CAN/CGSB-9.2 No.4-1994 history

• 1994 CAN/CGSB-9.2 No.4-1994 Methods of Testing Pulp and Paper Mill Effluents and Water - Colour of Pulp Mill Effluents