We request our readers to add to this list as responses in this thread.Fingerprint: s::can spectrometer probes record the complete absorbance spectrum between 190 and 750 nm (UV-Vis) or 190 - 390 nm (UV) resolving it into 256 wavelengths - the result is the “Fingerprint”. There are several other types of equipment that are useful for the same purposes. IWP requests users to view the same as an introductory guide. The choice of the meter depends on the necessity as well as cost. There are several types of soil moisture meters starting from simple hand held devices which are economical but not very long lasting to more sophisticated electrical resistance blocks and tensiometers. This is also useful in watering urban landscape spaces like large parks, apartment lawns etc. Golf courses are now using these meters to increase the efficiencies of their irrigation systems to prevent over watering and leaching of fertilizers and other chemicals offsite. This helps the farmer use lesser water to grow a crop and also manage the quality of the crop in a better manner during the plant growth stages. Measuring soil moisture is important in agriculture to help farmers manage their irrigation systems more efficiently. Soil moisture meter measures water content in the soil. A simple and economical rain gauge can be made at home to understand how much rain falls on the rooftop, which will help calculate the potential of roof top rainwater harvesting. The frequency of readings will depend on the requirements of the collection agency. Rain gauge amounts are read either manually or by automatic weather station (AWS). The level of rainfall is sometimes reported as inches or centimeters. Most rain gauges generally measure the precipitation in millimeters. It is a simple clear glass measuring jar. This test, is therefore, very simple and does not require much technique or time.Ī rain gauge is an instrument used to measure precipitation or rainfall.
The amount of residual chlorine can be ascertained by comparing the colour developed in the glass tube with the standard colors already kept in the laboratory. The more yellow the color, the greater is the chlorine residual. The formation of yellow color normally indicates the presence of chlorine (either combined or free) in the water. The color formed is observed after 5 minutes. To this, a stipulated quantity of chemical reagent is added. In this test, a chlorinated water sample is taken in a glass tube after the required contact period. pH meters range from simple and inexpensive pen-like devices to complex and expensive laboratory instruments with computer interfaces and several inputs for indicator and temperature measurements to be entered to adjust for the slight variation in pH caused by temperature.Ĭhloroscope is an instrument used to check the residual chlorine in drinking water. A typical pH meter consists of a special measuring probe (a glass electrode) connected to an electronic meter that measures and displays the pH reading. The first commercial pH meters were built around 1936 by Radiometer in Denmark and by Arnold Orville Beckman in the United States. View a list of kits and manufacturers' details for more information.Ī pH meter is an electronic device used to measure the pH (acidity or alkalinity) of a liquid (though special probes are sometimes used to measure the pH of semi-solid substances). Tests for bacteriological contamination using such kits only indicate the presence or absence of contamination and not its extent. These kits use the same titration principles but are light, can stand up to rough 'travel' and still give fairly accurate results. However, when one needs to test the water in the field, water testing kit come handy. Water is often tested for various parameters like pH, turbidity, colour, conductivity etc in laboratories using the titration method.
#Water quality measuring instruments how to#
In some cases, it also gives details on how to make them at home using simple materials. It gives a brief description of the instruments and explains their usage and principles.
This FAQ is a compilation of basic information about a few different equipment that are helpful in measuring water quality and quantity.