Select Topic of Turbidity Meters
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timesTURBIDITY METHODS and MEASUREMENT
3.1 Introduction The IESWTR requires systems to measure the turbidity of combined filter effluent and individual filter effluent. Because these measurements are used for reporting and compliance purposes (as described in Chapter 2), accurate measurement and strict adherence to approved methods is of paramount importance. The following chapter describes approved methods, analytical issues associated with turbidimeters, quality assurance and quality control issues, and data collection and management.
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timesThe Turbidity Tube: Simple and Accurate Measurement of Turbidity in the Field
Turbidity is an important water quality parameter in drinking water provision and treatment. The equipment typically used to measure turbidity can be quite expensive, and often provides results which are more precise and accurate than necessary. This high cost is a barrier to many projects in the developing world. In this paper, we will present the turbidity tube as an alternative device to measure turbidity. A turbidity tube can be purchased commercially, or can be constructed at an extremely low cost using a wide range of locally available materials. It is particularly well-suited to situations when decisions can be made based on approximate turbidity (rounded to the nearest 5 NTU). We give a brief discussion of what turbidity is, how a turbidity tube is constructed, and how to use it properly.
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