EN
This test is only for colour in water from naturally occurring organic material. The presence of metallic impurities, dyestuffs, or industrial pollutants will invalidate the result.
Fill to the 10 mL line with deionised water.
Use this to "blank" the instrument. Place in cell holder and press Blank.
Filter 10 mL of sample through a GF/B filter .
Place in cell holder and press Measure to obtain value for Colour on Pt/Co Scale.
