Lovibond Maxi Direct - Ph Value with Liquid Reagent

170
MaxiDirect_2c 03/2010
1.1 Methods
pH value 6.5 – 8.4
with Liquid Reagent
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.
5. Fill the vial with drops of the same size by holding the
bottle vertically and squeeze slowly:
6 drops of PHENOL RED solution
6. Close the vial tightly with the cap and swirl several times
to mix the contents.
7. Place the vial in the sample chamber making sure that
the
marks are aligned.
8. Press TEST key.
The result is shown in the display as pH-value.
prepare Zero
press ZERO
Zero accepted
prepare TEST
press Test
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