Water I.D. Primelab 2.0, Manual

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(169)
Nitrate HR
1 - 100 mg/l (NO₃⁻)
Powder Pack
Internal Name: 169-Nitrate-HR-pp
10ml
Nitrate N°1 Photometer (PPHNitra1)
Nitrate N°2 Photometer (PPPNitra2)
Measurement procedure:
1 Fill 10 ml test water into a clean 24 mm cuvette.
2 Screw the lid back on the cuvette.
3 Insert the cuvette into the PrimeLab. Pay attention to the arrow on the front of the cuvette.
4 Start ZERO measurement.
5 Remove the cuvette from the PrimeLab and set it aside. It is no longer required for this test.
6 Fill 20 ml sample water in a test tube.
7 Add a Nirate N°1 Photometer powder pillow to the test tube.
8 Then add a Nitrate N°2 Photometer powder pillow to the test tube.
9 Screw the lid back on the tube.
10 Shake the tube heavily for 00:15 minute(s).
11 Tap TEST to start a 10:00 minute(s) countdown.
12 Wait until the 10:00 minute(s) countdown ran out.
13 Remove 10 ml from the tube by using a syringe.
14 Empty the 10 ml from the previous step in a clean 24 mm cuvette.
15 Insert the cuvette into the PrimeLab. Pay attention to the arrow on the front of the cuvette.
16 Tap TEST to perform the measurement.
17 The measured value is immediately displayed.
Notes:
In presence of nitrites, measurements of excessively high nitrate levels are possible. For
correction, subtract the nitrite-nitrogen (N) from the content of the nitrate-nitrogen (N). For this,
the measurement results of the nitrate or nitrite measurement must be calculated in nitrogen
(N).
Too short or too weak shaking of the sample may result in lower nitrate levels.
If an uneven color distribution in the shaker is observed within the waiting time, it should be
reversed again. The current countdown remains unaffected.
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