Colombo Marine Ammonia Test

Professional drop test for precise determination of ammonia levels in seawater. The handy visualised instructions for use, included test tubes and accessories make testing easy. Test range ammonia: 0 – 5 mg/l. The contents in the pack are sufficient for 40 tests.
General Guidelines
• Ensure that the test tube is clean before use.
• Clean the tube directly after use.
• Take the volume of the water sample as precisely as possible.
• Keep the dripping bottle perfectly vertical during dropping.
• Take care that no air bubbles are included in the drops.
Test procedure:
1. Take a water sample of 5 ml.
2. Add 5 drops of NH3-1 test fluid and shake.
3. Add 5 drops of NH3-2 test fluid and shake again.
4. Add 5 drops of NH3-3 test fluid and shake again.
5. Wait 15 minutes.
6. Determine the NH3-value using the included colour chart.
For judging the colour of the water sample after adding all the test fluids, proceed as follows: put the test tube on the included colour chart and look through the tube on to the chart from directly above it. Do not look in direct sun light, but at indirect light. Compare the colour of the water sample with the colours on the chart. The closest colour shows the corresponding value. Generally the colours of the sample and on the chart will not be exactly the same, as values in practice will always be between the standard values, and thus a mixture of both consecutive values. Therefore, one should estimate between which colours the sample really lies.
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