LaMotte SMART 2 - Manual (Page 133)

COLOR
PLATINUM COBALT METHOD
· NO REAGENTS REQUIRED
Color in water may be attributed to humus, peat, plankton, vegetation, and
natural metallic ions, such as iron and manganese, or industrial waste. Color is
removed to make water suitable for domestic and industrial use. Color may
have to be removed from industrial waste before it is discharged to a waterway.
APPLICATION: Potable water and water with color due to natural materials.
RANGE: 0–1000 color units
METHOD: Color is determined by a meter that has been calibrated with
colored standards of known platinum cobalt concentration.
True color, the color of water in which the turbidity has been
removed, is measured.
SAMPLE
HANDLING &
PRESERVATION: Collect all samples in clean glassware. Determine color as
soon as possible to avoid biological or chemical changes that
could occur in the sample during storage.
INTERFERENCES: Turbidity will interfere. Filter before testing.
Smart2 TEST PROCEDURES 2.04 Color 1/2