138
MD 610_2d 11/2019
Hydrazine
with Powder Reagent
0.05 – 0.5 mg/l N
2
H
4
/ 50 – 500 μg/l N
2
H
4
1.
Fill a clean vial (24 mm Ø) with
10 ml of the water
sample
(Note 1, 2), close tightly with the cap.
2.
Placethe vial in the sample chamber making sure that
the
marks are aligned.
3.
Press
ZERO
key.
4.
Removethe vial from the sample chamber.
5.
Add
1 g HYDRAZINE test powder
(Note 3) to the
water sample.
6.
Closethe vial tightly with the cap and swirl severaltimes
to mix the contents.
7. Press
[
]
key.
Wait for a
reaction period of 10 minutes.
After the reaction period is finished proceed as follows:
8.
Theslight turbidity that occurswhen the reagentisadded
must be removed by filtration (Note 4).
9.
Placethe vial in the sample chamber making sure that
the
marks are aligned.
10. Press
TEST
key.
The result is shown in the display as Hydrazine.
prepare Zero
press ZERO
Zero accepted
prepare Test
press TEST
Countdown
10:00
start:
0
5
2
Содержание Lovibond MD 610
Страница 14: ...8 MD 610_2d 11 2019...
Страница 15: ...9 MD 610_2d 11 2019 Part 1 Methods...
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Страница 279: ...273 MD 610_2d 11 2019 Notes 1 SO3 Na2 SO3 Reagent Formof reagent Quantity Order No SULFITE LR Tablet 100 518020BT...
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Страница 307: ...301 MD 610_2d 11 2019 Part 2 Instrument Manual...
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Страница 363: ...357 MD 610_2d 11 2019 Part 3 Enclosure...