Camlab Lovibond MD 610, Инструкция по эксплуатации

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MD 610_2d 11/2019
Notes:
1. Extremelybasic or acidic water samplesshould be adjusted with 0.5 mol/l (1 N) Sulfuric
acid solution or 1 mol/l (1 N) Sodium hydroxide solution to pH 7.
2. Interferences:
Interfering substance Interference levels and treatments
Calcium greater than 1000 mg/l CaCO
3
Iron Interferes at all levels. Correct as follows:
a) determine the concentration of iron present in the
sample by performing a total Iron test
b) add the same iron concentration as determined
to the deionised water (step 1).
The interference will be blanked out successfully.
Magnesium greater than 6000 mg/l CaCO
3
Nitrate greater than 100 mg/l NO
3
-N
Nitrite greater than 12 mg/l NO
2
-N
Phosphate greater than 100 mg/l PO
4
-P
Sulfate greater than 300 mg/l SO
4
Sulfide intensifies the colour
Glycine, Hydrazine,
Colour, Turbidity Lesscommon interferences such as Hydrazine and
Glycine will causeintensified colours in the prepared
sample. Turbidity and colour will give erroneous high
values. Sampleswith severeinterferences require
distillation.
3. N
NH
4
NH
3
Reagent Form of reagent/Quantity Order-No.
Set
VARIO Ammonia Salicylate F10
VARIO Ammonia Cyanurate F10
Powder Pack / per 100 PP 535500