Thermo Scientific AQUAfast AQ3700, User Manual

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02 Thermo Scientific Orion AQUAfast AQ3700 Colorimeter User Guide
1.1 Methods
Iodine
with Tablet
0.05 – 3.6 mg/l I
1. Fill a clean vial (24 mm Ø) with
10 ml of the water
sample , close tightly with the cap.
2. Place the vial in the sample chamber making sure that
the marks are aligned.
3. Press
ZERO
key.
4. Remove the vial from the sample chamber,
empty the
vial leaving a view drops in.
5. Add
one DPD No. 1 tablet
straight from the foil to the
water sample and crush the tablet using a clean stirring
rod.
6. Add water sample to the 10 ml mark.
7. Close the vial tightly with the cap and swirl several times
until the tablet is dissolved.
8. Place the vial in the sample chamber making sure that
the marks are aligned.
9. Press
TEST
key.
The result is shown in the display in mg/l Iodine.
prepare Zero
press ZERO
Zero accepted
prepare Test
press TEST
1
5
2