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JBL Silicate SiO2 test Lihat Ukuran Penuh

JBL Silicate SiO2 test

  • alat tester pengukur Silicate / SiO2
  • memberikan hasil tes kandungan Silicate / SiO2 dengan akurat pada akuarium air tawar dan air laut
  • untuk sekitar 50 kali pemakaian

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alat tester pengukur Silicate / SiO2

JBL Silicate / SiO2 test, alat pengukur kadar Silicate / SiO2 pada akuarium air tawar dan air laut.

The JBL silicate test set SiO2 is for the measurement and routine control of the silicate content in freshwater and saltwater within the range of 0.2 - >6 mg/l (ppm). Using the compensation method specially developed by JBL, precise and reliable results can be obtained even in moderately discoloured water, e.g. caused by peat filters and disease treatment. Any possible interference due to the presence of phosphates in the water sample are eliminated by the delayed addition of reagent 2.

Why test?
Silicon is one of the most common elements in the world. As a result of the weathering of silicate rocks, silicon is washed into surface and ground water in the form of silicate. Depending on the composition of the rocks in a particular area, the mains water will contain varying amounts of dissolved silicate. Mains water can contain up to 40 mg/l and, on rare occasions, even more. Silicate is non-toxic and there is no threshold set in the regulations governing the quality of drinking water.

The significance of silicon for aquariums and garden ponds is as a nutrient for algae (diatoms), some aquatic plants (e.g. hornwort) as well as siliceous sponges and many other invertebrates. When a new aquarium is set up, the first sign of settlement is a brown coating of algae (diatoms). This coating disappears when the aquarium is run in and sufficient competition from other algae and micro organisms has established itself. This also significantly reduces the amount of silicate in the water. However, such coatings of algae can often reappear, particularly in saltwater, after the water has been changed, adding new silicate. For this reason, osmosis water should preferably be used when changing the water or filling a marine aquarium.

We recommend the following values:
Freshwater and garden pond water: up to approx. 1 mg/l to 2 mg/l can be tolerated.
Saltwater: max. 1 mg/l


1. Repeatedly rinse both test jars with the water to be tested.
2. Use the enclosed syringe to fill each of the test jars with 10 ml of sample water.
3. Add the reagent to one of the two test jars as follows:
a) 10 drops of reagent 1, shake, leave to stand for 3 minutes
b) 10 drops of reagent 2, shake, leave to stand for 3 minutes.
c) A small measuring spoon (narrow end of enclosed double spoon) of reagent 3, close lid and shake until dissolved, leave to stand for 3 minutes
4. Place both test jars in the comparator block: the jar with the added reagent at the smooth end of the comparator block, the jar with untreated sample water (blank sample) at the notched end of the comparator block.
5. Move the comparator block with the two test jars backwards and forwards on the colour chart with the notch pointing to the values, until the colour of the sample treated with reagent matches the colour under the blank sample as closely as possible.
6. Read the silicate content in the notch of the comparator block. The additional graduation of colours from green to red on the colour chart allows a quick reading of the measurement.
In the event that the colour of your test sample is darker than the colours of the chart, dilute the sample with distilled or silicate-free water and measure again.

Depending on the dilution, the result must be multiplied as follows to determine the actual silicate content:
5 ml sample + 5ml dist. water: result x 2
2 ml sample + 8 ml dist. water: result x 5
1 ml sample + 9 ml dist. water: result x 10