JBL TestLab Handbuch Seite 53

Warning and safety notices:
CA reagent 1:
Danger
H 314 Causes severe skin burns and eye damage.
P101 If medical advice is needed, have product container or label at hand. P102 Keep
out of reach of children. P280 Wear protective gloves/protective clothing/eye protection/
face protection. P 305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several
minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P310
Immediately call a POISON CENTER or doctor/physician.
Hazard-determining component of labelling: Potassium hydroxide.
Warning and safety notices:
CA reagent 3:
Attention
H315 Causes skin irritation. H319 Causes serious eye irritation.
P102 Keep out of reach of children. P280 Wear protective gloves/protective clothing/eye
protection/face protection. P305 + P351 + P338 IF IN EYES: Rinse cautiously with water
for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P337 x P313 If eye irritation persists: Get medical advice/attention.
Test Set Mg + Ca
Special features:
The JBL Mg + Ca test set is an easy to use drop test to measure the magnesium and calcium content of
saltwater. As the magnesium content can only be measured by recording the sum of magnesium plus calcium,
the two tests have been combined in one pack. The magnesium content can be calculated by subtracting the
calcium content from the total value of Mg + Ca.
Magnesium:
Why test?
The popular red calcareous algae and invertebrate animals in reef aquariums which form calcareous skeletons
or shells need sufficient quantities of magnesium as well as calcium to form healthy skeletons and shells. In
addition to hard corals this group includes soft corals, sponges, sea urchins, crustaceans, bivalves, slugs etc.
The magnesium content in marine aquariums should be approximately 1200 mg/l as measured during the JBL
Expedition in the Indo-Pacific.
Help for low levels:
Magnesium levels which are too low can be easily and safely increased with JBL MagnesiuMarin.
Calcium:
Why test?
Lower animals (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
pointless. 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. Failure to follow with these precautions may
lead to deviations in the test results.
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