Ammonia is often an excellent indication of the presence of animal or plant microbiological decay. It is tested in fish farms (fresh and salt water tanks) due to the damaging effects of its toxic nature.
Ammonia is tested in lakes, rivers, portable water, boiler feed water, sewage, industrial and waste water. Ion Selective electrodes currently used for these measurements require up to 5 minutes for a stable response time and normally last 3 to 6 months. With chemical test kits, 3 or 4 kits using color cubes are needed to cover the full range.
The best increment with chemical test kits is never better than 0.1 mg/L and in most cases, only 0.5 mg/L. HANNA offers instruments for low, medium and high ammonia concentrations.
Simply fill the test tube with pond water, insert the meter and press the "zero" button. This will calibrate the pond water sample to the meter as a reference, add the reagent to the same test tube, insert back into the meter, press the read timer button, this starts a timer count down, then the meter shows the result on the digital display. That's it! It doesn't get any easier.
Ammonia Meter: This is a very popular meter for obvious reasons. Range 0.00 to 3.00 mg/l resolution 0.01 mg/l Battery, instructions 2 test tubes included. Simple to use, results in less than 4 minutes.
|Range||0.00 to 3.00 mg/L (ppm)|
|Resolution||0.01 mg/L (ppm)|
|Precision||±0.04 mg/L (ppm) ±4% of reading|
|Light Source||Tungsten lamp|
|Light Detector||Silicon photocell with narrow band interference filter(@ 420 nm for HI 96700 and HI 96733)|
|Environment||0 to 50°C (32 to 122°F); RH max 95% non-condensing|
|Power Supply||(1) 9V battery|
|Auto-off||After 10 minutes of non-use in measuring mode After 1 hour of non-usein calibration mode with last reading reminder|
|Dimensions||192 x 102 x 67 mm (7.6 x 4 x 2.6")|
|Weight||290 g (10 oz.)|
|Method||Adaptation of the ASTM Manual of Water and Environmental Technology,D1426-92, Nessler method.|