Aquaculture Set Test Kit

Founded in 2008, Hangzhou Lohand Biological Technology Co., Ltd. Is a company that designs, develops, produces and sells water quality rapid test strips, reagents and precision testing instruments. It is located in Jianggan Science and Technology Park and relies on Zhejiang University Food Science and Technology Park and the West lake Science and Technology Park, focusing on technological innovation, has obtained a number of patents and produces provide customers with professional, fast, affordable and simple testing products and services to create a new history of water quality monitoring.
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Product Details

Aquaculture set test kit Feature:
1. Simple and easy - using visual colorimetry or titrimetry method, users can complete the test independently without specialized training.
2. Fast and efficient - several minutes is enough to complete the analysis of one water sample. No need any other instrument for test.
3. Accurate and reliable - the test method derives from the international standard, the resuit can be recognized world widely.
4. Smart and portable - small size, light weight.Widely used in food, beverage, scientific, agricultural, environmental, monitor and all other related areas.


How to use colorimetric chart
Fill the tube with testing liquid to a certain level specified in the instructions;
2 Adding reagent
Add one pack of reagent(or two different reagent according to the instructions),then close the lid and sway the tube to make the reagent dissolved thoroughly.
3.Compare the liquid color against the colorimetric chart
A.Lay the colorimetric chart flat under the adequate light
B.Put the tube above the colorimetric chart vertically
C.Compare the color of testing liquid with the color on the colorimetric chart,find out the same color and get the concentation.

5 in 1 Aquaculture set test kit

Product name

Model No.

Test item

No. of Tests

Shelf life

water analysis kit




1 year

PH: pH is a measure of acidity or alkalinity.

The hydrogen ion concentration index ((hydrogen ion concentration)) refers to the ratio of the total number of hydrogen ions to the amount of total substances in the solution. It is commonly referred to as "pH", not "pH". For the determination of hydrogen ion activity index, the qualitative method can be determined by using pH indicator and pH test paper, while the quantitative pH measurement needs to be measured by pH meter.

DO: Oxygen saturation (symbol SO2) is a relative measure of the concentration of oxygen that is dissolved or carried in a given medium as a proportion of the maximal concentration that can be dissolved in that medium. It can be measured with a dissolved oxygen probe such as an oxygen sensor or an optode in liquid media, usually water. The standard unit of oxygen saturation is percent (%).

The nitrite ion, which has the chemical formula NO−2, is a symmetric anion with equal N–O bond lengths. Upon protonation, the unstable weak acid nitrous acid is produced. Nitrite can be oxidized or reduced, with the product somewhat dependent on the oxidizing/reducing agent and its strength. The nitrite ion is an ambidentate ligand, and is known to bond to metal centers in at least five different ways.Nitrite is also important in biochemistry as a source of the potent vasodilator nitric oxide. In organic chemistry the NO−2 group is present in nitrous acid esters and nitro compounds. Nitrite (mostly sodium nitrite) is also used in the food production industry for curing meat.Nitrate is a polyatomic ion with the molecular formula NO−3 and a molecular mass of 62.0049 u. Organic compounds that contain the nitrate ester as a functional group (RONO2) are also called nitrates.

Sulfide (British English also sulphide) is an inorganic anion of sulfur with the chemical formula S2− or a compound containing one or more S2− ions. Solutions of sulfide salts are corrosive. Sulfide also refers to chemical compounds large families of inorganic and organic compounds, e.g. lead sulfide and dimethyl sulfide. Hydrogen sulfide (H2S) and bisulfide (SH−) are the conjugate acids of sulfide.

Ammonia nitrogen means nitrogen present in the form of free ammonia(NH3)and ammonium ions(NH4)in water. The nitrogen content of animal organic compounds is generally higher than that of vegetable organic compounds. At the same time, nitrogen-containing organic matter in human and animal feces is very unstable and easily decomposed into ammonia. Therefore, when the content of ammonia nitrogen in water increases, it refers to the nitride in the form of ammonia or ammonium ions.

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