Category Archives: Quality test

The Best Water Hardness Test Kits: How to Choose the Right One for You

Are you looking for the best water hardness test kit? If so, you’re in luck! In this article, we will discuss some of the best options on the market and how to choose the right one for you. Water hardness is a major issue for many homeowners, and it’s important to test your water regularly to make sure that it’s within safe levels. A quality water hardness test kit can help Read more

Digital TDS Meter – Measuring Total Dissolved Solids

A Digital TDS meter is a hand-held instrument that used to indicate the Total Dissolved Solids in a water solution. It works based on the electrical conductivity of the water. When the dissolved ions increase then the conductivity of a solution increases. Normally, the TDS value represents as ppm. A TDS meter does not measure all kinds of contaminants such as heavy metals, pesticides, Read more

Iron Related Bacteria Test – Hach Test

BART (Biological Activity Reaction Test) is one of the most common iron related bacteria test. This Hach Company kit includes 9 tests. When IRB present in the sample, then a series of reaction occurs with IRB and nutrients ingredients in the inner tube. The change to red color of the water indicates a presence of bacteria within that sample. The IRB-BARTs can detect both iron oxidizing and Read more

Total coliform bacteria test – LaMotte 4-3616 Coliform Test Kit

Total coliform bacteria test is an easy method with The LaMotte 4-3616 Coliform Test Kit. It Contains 5 disposable tubes and a water sample bag. Each of the tube contains a nutrients tablet that supports the growth of coliform bacteria, a gelling substance, and a pH indicator. If the coliform bacteria are present in the water sample then the bacteria metabolizing the nutrients in the tablet Read more

Determination of chemical oxygen demand of water

Chemical Oxygen Demand indicates the amount of oxygen required to oxidize all soluble and particulate organic substances in water under specific conditions. All organic compounds may convert into carbon dioxide, water and ammonia. It is a significant parameter to determinate water characteristic. The COD value depends on oxidizing agent, pH, temperature, and period of time. It is expressed as Read more

Biochemical Oxygen Demand – BOD determination

There is a close relationship between dissolved oxygen and biochemical oxygen demand. BOD is the amount of dissolved oxygen required to break down the organic material of the sample water by aerobic biological organisms at certain temperature over a specific time period. Generally this parameter is determined with the consumption of oxygen by the micro organism during 5 days of incubation at Read more

Dissolved oxygen in water

Dissolved oxygen (DO) means the amount of oxygen that is dissolved in the water. Oxygen is the essential element to all animals. No animals can survive without it. Dissolved oxygen in water makes aquatic life possible. Human being takes oxygen from the air with the lungs. On the other hand, Fishes take dissolved oxygen through their gills. Gills work better if the water contains more oxygen. Read more

Determination of permanent hardness of water

The available methods for determination of permanent hardness of water are O’Heners method, EDTA method and Soap titration method. Initially we have to know; what is hardness? –Hardness is due to presence of bicarbonate, sulphates, chlorides and nitrates of calcium and magnesium. It is expressed in ppm (part per million) as calcium carbonate. There are two types of hardness: Read more

Determination of total hardness of water

To determine the Total Hardness of Water, EDTA is the easiest method. Reason, EDTA reacts with all metal without alkali metal and the proportion is 1:1. The main cause of water hardness is dissolved salts of calcium and magnesium. Moreover the other ions like Strontium, Iron, Barium and Manganese also contribute of water hardness. Traditional it is measured by the amount of soap that is Read more