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TEST INSTRUCTIONS - Geotech Environmental Equipment

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COLOR<br />

PLATINUM COBALT METHOD NO REAGENTS REQUIRED<br />

Color in water may be attributed to humus, peat, plankton, vegetation, and<br />

natural metallic ions, such as iron and manganese, or industrial waste. Color is<br />

removed to make water suitable for domestic and industrial use. Color may<br />

have to be removed from industrial waste before it is discharged to a waterway.<br />

APPLICATION: Potable water and water with color due to natural materials.<br />

RANGE: 0–1000 color units<br />

METHOD: Color is determined by a meter that has been calibrated with<br />

colored standards of known platinum cobalt concentration.<br />

True color, the color of water in which the turbidity has been<br />

SAMPLE<br />

HANDLING &<br />

PRESERVATION:<br />

removed, is measured.<br />

Collect all samples in clean glassware. Determine color as<br />

soon as possible to avoid biological or chemical changes that<br />

could occur in the sample during storage.<br />

INTERFERENCES: Turbidity will interfere. Filter before testing.<br />

Smart2 <strong>TEST</strong> PROCEDURES 2.04 Color 1/2

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