Aqualytic AL100 Instrucciones página 29

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Methods
GB
Notes:
1. The sample temperature should be between 20°C and 30°C.
2. Carry out the test at the latest one hour after sample taking.
3. Concentrations above 2 mg/l Urea can produce results inside the measuring range.
In this case, the water sample should be diluted with Urea free water and remeasured.
4. The tablets must be added in the correct sequence.
5. The AMMONIA No. 1 tablet will only dissolve completely after the AMMONIA No. 2
tablet has been added.
6. Do not store reagent 1 (Urease) below 10°C; granulation is possible.
Store reagent 2 (Urease) in the refrigerator at a temperature of 4°C to 8°C.
7. Ammonia and chloramines are also measured during urea measurement.
8. Before analysing seawater samples, a measuring spoon of Ammonia Conditioning
Powder must be added to the sample and swirled to dissolve before AMMONIA No. 1
tablet is added.
9. Fill the vial with drops of the same size by holding the bottle vertically and squeeze
slowly.
10. One UREA PRETREAT tablet compensates for the interference of free Chlorine
up to 2 mg/l (two tablets up to 4 mg/l, three tablets up to 6 mg/l).
Reagent
UREA PRETREAT
UREA Reagent 1
UREA Reagent 2
Set
AMMONIA No. 1 / No. 2
AMMONIA No. 1
AMMONIA No. 2
AL100_7 07/2016
Form of reagent/Quantity
Tablet / 100
Liquid reagent / 15 ml
Liquid reagent / 10 ml
Tablet / per 100
inclusive stirring rod
Tablet / 100
Tablet / 100
Order-No.
4516110BT
459300
459400
4517611BT
4512580BT
4512590BT
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