Water I.D. Primelab 2.0, Manual

Page: 199 / 301

(92) Ozone
(in absence of chlorine)
0.00 - 2.70 mg/l (O₃)
Liquid
Internal Name: 92-Ozone-liq
10ml
30ml PL DPD 1 A (PL30DPD1A)
30ml PL DPD 1 B (PL30DPD1B)
30ml PL DPD 3 C (PL30DPD3C)
30ml PL DPD Glycine (PL30DPDGlycine)
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 Empty the cuvette to a few drops.
8 Add 3 drop(s) of PL DPD 1 A into the cuvette.
9 Add 3 drop(s) of PL DPD 1 B into the cuvette.
10 Add 3 drop(s) of PL DPD 3 C into the cuvette.
11 Then fill 10 ml of the sample water in 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 start a 02:00 minute(s) countdown.
16 Wait until the 02:00 minute(s) countdown ran out.
Notes:
DPD 1 A and DPD 1 B reagent MUST be added to the vial BEFORE water sample is added to
avoid misreadings!
Make sure no ozone escapes while preparing the sample. The measurement must be
performed directly after sampling.
Shake the liquid reagent thoroughly before adding the liquid to the vial.
Liquid reagents should be stored at temperatures of 5 - 10 °C in securely closed bottles.
If the sample water contains further oxidizing agents, these will react like ozone and contribute
to the measurement result.
T144/204 T144/204