Water I.D. Primelab 2.0, Manual

Page: 205 / 301

(159)
Permanganate Time Test
0 - 100 %T (PTT)
Liquid
Internal Name: 159-PTT-tab
10ml
40
40
60 80
100
40
30
30
20
20
20
20
10
10
0
0
°C °F
40
40
60
80
100
40
30
30
20
20
20
20
10
10
0
0
°C °F
Potassium Permanganate Solution
(PL10PTT)
Measurement procedure:
1 Set the refrigerator to 15 °C using the thermostat and according to the instructions.
2 Fill 10 ml test water into a clean 24 mm cuvette.
3 Screw the lid back on the cuvette.
4 Place the cuvette in the refrigerator for 20 minute(s).
5 Place the sealed "Methanol ZERO" cuvette in the PrimeLab.
6 Start ZERO measurement.
7 Remove the cuvette from the PrimeLab and set it aside. It is no longer required for this test.
8 Remove the cuvette from the refrigerator.
9 Add exactly 35 µl of Potassium Permanganate Solution to the sample water into the same
cuvette. Use a 10-100 µl pipette.
10 Screw the lid back on the cuvette.
11 Place the cuvette in the refrigerator for 10 minute(s).
12 Tap TEST to start a 10:00 minute(s) countdown.
13 Remove the cuvette from the refrigerator.
14 Wipe the condensation water from the cuvette with a dry cloth.
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.
Notes:
After adding the PTT-liquid, sample is highly sensitive to light, air and temperature. Do NOT
open the vial after PTT-liquid has been added and lid got screwed on and keep it at constant
temperature of 15 °C.
Interferences: Turbid and/or colored water samples (before adding PTT liquid).
T150/204 T150/204