Water I.D. Primelab 2.0, Manual

Page: 214 / 301

(45) Phosphate
(-ortho-) LR
0.00 - 4.00 mg/l (PO₄³⁻)
Liquid
+ Powder
Internal Name: 45-Phosphat-LR-liq
10ml
65ml PL Phosphate LR N°1 (PL65PPLR1)
PL Phosphate LR 2 (PLpow20PPLR2)
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 again.
6 Unscrew the lid from the cuvette.
7 Add 25 drop(s) of PL Phosphate LR 1 into the cuvette.
8 Add 1 x 0.05 ml PL Phosphate LR 2 scoop(s) powder to the sample water in the cuvette.
9 Screw the lid back on the cuvette.
10 Gently swirl the cuvette to mix the liquid well.
11 Insert the cuvette into the PrimeLab. Pay attention to the arrow on the front of the cuvette.
12 Tap TEST to perform the measurement.
13 After the lapse of a 10:00 minute(s) countdown the measured value is displayed.
Notes:
The test result can be converted into the following unit(s): mg/l P, mg/l P₂O₅.
With this procedure ortho-phosphate ions are detected. Other phosphates/phosphonates must
therefore be converted into ortho-phosphates before the test is begun.
The pH value of the sample water should be between 6 and 7.
The following contents of substances in the sample water can - at the respective concentration -
falsify the measurement results: Chromium (> 100 mg/l), copper (> 10 mg/l), iron (> 100 mg/l),
nickel (> 300 mg/l), zinc (> 80 mg/l).
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