Water I.D. Primelab 2.0, Manual

Page: 131 / 301

(180) Fluoride
(in absence of chlorine)
0.00 - 2.00 mg/l (F⁻)
Liquid
Internal Name: 180-Fluoride
PL SPADNS Fluoride Reagent (PL100SPADNSF)
Measurement procedure:
1 Fill 10 ml distilled water in a clean 24 mm cuvette.
2 Add 2 ml of PL SPADNS Fluoride Reagent to the cuvette.
3 Screw the lid back on the cuvette.
4 Gently swirl the cuvette to mix the liquid well.
5 Insert the cuvette into the PrimeLab. Pay attention to the arrow on the front of the cuvette.
6 Start ZERO measurement.
7 Remove the cuvette again.
8 Empty the cuvette.
9 Clean and dry the cuvette and lid carefully.
10 Fill 10 ml sample water in the same cuvette.
11 Add 2 ml of PL SPADNS Fluoride Reagent to the cuvette.
12 Screw the lid back on the cuvette.
13 Gently swirl the cuvette to mix the liquid well.
14 Insert the cuvette into the PrimeLab. Pay attention to the arrow on the front of the cuvette.
15 Tap TEST to perform the measurement.
16 The measured value is immediately displayed.
Notes:
Distilled water and sample water must be at the same temperature (± 1 °C).
The reagent must be dosed precisely. The use of a volumetric pipet is recommended.
ZERO and sample must be measured with the same batch of reagent.
ZERO and sample measurement must be performed in the same cuvette.
Turbid and coloured sample water must be distilled prior to the test.
Chlorine levels > 5 mg/l will interfere.
T76/204 T76/204