JBL TestLab Handbuch Seite 52

Move the comparator block with the two test jars backwards and forwards on the colour chart, until the colour
of the sample treated with reagent matches the colour under the blank sample as closely as possible.
7. Read the copper content in the notch of the comparator block.
The instructions are repeated in a series of simple diagrams on the reverse of the colour chart.
Our tip for the environmentally-friendly user:
All reagents for JBL test sets are available from your retailer as reasonably-priced refill packs!
Warning and safety notices concerning reagent 2:
Attention
H226 Flammable liquid and vapour.
P102 Keep out of reach of children. P210 Keep away from heat/sparks/open flames/
hot surfaces. – No smoking. P233 Keep container tightly closed. P280 Wear protective
gloves/protective clothing/eye protection/face protection. P303+P361+P353 IF ON SKIN
(or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/
shower. P403+P235 Store in a well-ventilated place. Keep cool.
Calcium Test Set Ca
Features:
The JBL calcium test set Ca is a quick and easy to use test to measure the calcium content of sea water.
Why test?
Invertebrates (corals, shellfish etc.) and calcareous algae in sea water require sufficient levels of calcium for
healthy growth. The natural calcium level of the sea is 390-440 mg/l. In order that the organism can make
the best use of the calcium, hydrogen carbonate must also be present in the water in the correct proportions.
For this reason the addition of calcium compounds without hydrogen carbonate, such as calcium chloride, is
worthless. A calcium level of 400-440 mg/l has proved to be the optimum in marine aquariums.
Help for low levels:
Calcium levels which are too low can easily be raised with JBL CalciuMarin. JBL CalciuMarin contains the
correct proportions of calcium and hydrogen carbonate, so that the targeted organisms have the best possible
access to the calcium. Calcium reactors (available at specialist pet shops) also help attain the physiologically
correct increase in calcium levels.
Procedure:
NOTE: Always hold the dropper pointing vertically downwards when taking drops from drop bottle!
Exterior surface of dropper should be dry! Avoid bubbles!
1. Swill out the measuring beaker several times with the water to be tested.
2. Fill the measuring beaker to the 5 ml mark with the water to be tested. Use the enclosed syringe for exact
results.
3. Add 5 drops of reagent 1 and shake it to mix. The test result is not affected by any clouding which may occur.
Wait 1 minute.
4. Add 1 small measuring spoonful (narrow end of the enclosed double-ended spoon) of reagent 2 and shake it
until the powder has dissolved.
5. Add reagent 3 one drop at a time, counting the drops, and shake it after each drop until the colour changes
from pink via violet to blue. The number of drops needed multiplied by 20 gives the calcium content in mg/l.
Example: 12 drops of reagent 3 = 240 mg/l.
Our tip for environmentally-friendly aquariums owners:
All reagents for JBL test sets are available from your retailer as reasonably-priced refill packs!
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