• For approx. 50 measurements with glass cuvette. For fresh- and saltwater. Measurement range from 0.025 to 1.0 mg/l nitrite. Colour scale with 9 colours from yellow to pink. Laboratory compensation system compensates water discoloration. Includes syringe to measure amount of water.

The JBL Nitrit Test-Set NO2 is designed for the measurement and routine control of the nitrite content in saltwater and freshwater within the range 0.025-1.0 mg/litre (ppm). The compensation method developed specially by JBL allows precise and reliable results to be obtained even in moderately discoloured aquarium water, e.g. caused by peat filters and disease treatment.

INSTRUCTION:

1. Repeatedly rinse both test jars with the aquarium water to be tested.
2. Use the enclosed syringe to fill each of the test jars with 5 ml of sample water.
3. Add 5 drops of reagent 1 followed by 5 drops of reagent 2 to one of the jars, mix by agitating after each addition of the reagents. Allow to settle until the colouring develops fully (approx. 3 minutes).
4. Place both test jars into the comparator block: the jar with added reagent into the smooth end of the comparator block, the jar with the untreated test water (blank sample) into the notched end of the comparator block.
5. Move the comparator block together with the jars side to side over the colour chart until the colour of the sample with added reagent matches the colour of the blank sample.
6. Read the nitrite content in the notch of the comparator