JBL NH4 Test Set : Recommended level max.: 0.25 mg/l NH4
For approx. 50 measurements with glass cuvette.
For fresh- and saltwater.
Measurement range from 0.1 to 5.0 mg/l ammonium.
Colour scale with 8 colours from light green to dark olive.
Table included showing resulting ammonia content.
Laboratory compensation system compensates water discoloration.
Includes syringe to measure amount of water. Product description :
The JBL Ammonium Test Set is designed for the measurement and routine control of the ammonium/ammonia content in freshwater and saltwater within the range 0.25 to 6,0 mg/l (ppm). The compensation method developed specially by JBL allows precise and reliable results to be obtained even in moderately discoloured aquarium water, e.g. caused by peat filters and disease treatment. (Recommended level max.: 0.25 mg/l NH4) . Problem solutions :
Ammonium is considered to be the first decomposition stage in the nitrogen cycle. It consists of proteins, which are converted by heterotrophic bacteria to ammonium. In addition, fish excrete a percentage of their bodily weight into the water every day in the form of ammonium. Ammonium is non-toxic, but, with increasing pH-levels, is converted to an ever-greater degree into toxic ammonia. If symptoms of poisoning appear in the pond or aquarium, it is important that the ammonium level is measured using the JBL Ammonium Test Set, in addition to nitrite. The enclosed table shows the resulting ammoniac content based on the pH-level. If ammonia levels of over 0.25 mg/l are measured, the pH-level must immediately be reduced slightly and the ammonium eliminated in the long term using JBL AmmoEX, as well as the bacterial decomposition process activated with JBL Denitrol (pollutant-decomposing bacteria). After the filters have been cleaned or medications have been used, bacteria which break down ammonium and nitrite are reintroduced to the filter using JBL Filterstart. Why testing? The process involved in the breakdown or the mineralization of organic matter in the aquarium (feed and plant debris, fish excretions) follows the stages proteins to ammonium to nitrite to nitrate. Certain bacteria are responsible for this process. Measuring the intermediate stages ammonium, nitrite and nitrate allows certain conclusions about the function of the "Aquarium system". Normally, ammonium and nitrite should not be allowed to enrich above concentrations of 0.2 mg/l (ppm). If they do, the bacteria balance may be disturbed. Ammonium is an important plant nutrient and is normally non-toxic to fish. But, depending on the pH value, the ammoniumion (NH4+) may turn into ammonia (NH3) which is toxic to fish. This is why the ammonia measurement should always be accompanied by pH mesurements. This table shows the toxicity as factor of the pH value (at 25?C) .
Instructions : Long-term measure: use a suitable biological filter. Reduce feed, reduce stock density of fish, if necessary. Filtration with JBL AmmoEx.Repeatedly rinse both test jars with the water to be tested.
Use the enclosed syringe to fill each of the test jars with 5 ml of sample water.
Add the reagents to one of the test jars in the following sequence:
A.) 5 drops of reagent 1, mix well!
B.) 5 drops of reagent 2, mix
C.) 5 drops of reagent 3, mix
Place both test jars into the comparator block: the jar with added reagent into the smooth end of the comparator block, the jar with untreated test water (blank sample) into the notched end of the comparator block.
Move the comparator block together with both test jars side to side over the colour chart until the colour of the sample with added reagent matches the colour of the blank sample.
Read the ammonium content in the notch of the comparator. Note : If the ammonium content is higher than the measuring range, use only 2,5 ml of test water instead of 5 ml (see step 2 above), add 2,5 ml of distilled water and proceed with steps 3 to 6 above. Multiply the result by 2. Observe the safety notice on the reagent bottles! See the JBL brochure "What, Why, How" No. 2 for more details on the significance of the nitrogen system (ammonium-nitrite-nitrate). JBL tip for the ecologically-minded "aquarians": The reagents for the JBL test sets are available in convenient and reasonably priced refill packs. The JBL test set series includes the following products: TH, CH, pH 3,0-10, pH 6.0-7.6, CO2, nitrite, nitrate, iron, phosphate, calcium.