154
MD 610_2d 11/2019
Iron, total (Fe in Mo)
in the presenceof Molybdate
with Vario Powder Pack
0.01 – 1.80 mg/l Fe
1.
Fill a clean Mixing Cylinder (50 ml) with
50 ml of the
water sample
.
2. Add the contentsof
one Vario (Fe in Mo) Rgt 1 Pow-
der Pack
straight from the foil into the water sample
(50 ml).
3.
Closethe Mixing Cylinder tightly with a stopper and
invert severaltimes to dissolve the powder.
4.
Use two clean vials (24 mm Ø) and mark one as
blank for zeroing.
5. Add
10 ml of the prepared water sample
to the
vial (this is
the blank
).
6. Closethe blank tightly with the cap.
7.
Fill a clean Mixing Cylinder (25 ml) with
25 ml of the
prepared
water sample
.
8.
Add the contents of
one Vario (Fe in Mo) Rgt 2
Powder Pack
straight from the foil into the
prepared
water sample
(25 ml).
9.
Close the Mixing Cylinder tightly with a stopper and
invert severaltimes to dissolve the powder (note 5).
10. Press
[ ]
key.
Wait for a reaction period of 3 minutes.
11.
After the reaction period is finished proceed as follows:
Fill the second prepared vial (point 4) with 10 ml of
the sample .Thisis
the sample
.
12. Place
the blank
in the sample chamber making sure
that the
marks are aligned.
13. Press
ZERO
key.
1
2
3
4
2
4
2
prepare Zero
press ZERO
Count-Down 1
3:00
Start:
Содержание Lovibond MD 610
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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...