International Turbidity Standard

The International Turbidity Standard (ITS) is an international standard that is used to measure the turbidity of water in various water bodies. The turbidity standard was developed in 1967 and has since been widely used throughout the world to assess water quality.

To measure turbidity, special instruments are used - a turbidity meter. The operating principle of the turbidity meter is based on measuring the light flux passed through a water sample. The more turbidity in the sample, the less light flux reaches the photodetector of the turbidity meter.

The International Turbidity Standard ITS was developed to ensure uniformity in turbidity measurement and comparison of results between different laboratories. The ITS uses a turbidity scale that is based on units of light absorption.

Measuring turbidity is an important parameter for assessing the quality of water bodies, since turbidity can be caused by various contaminants such as organic matter, mineral salts, metals and other impurities. High levels of turbidity can lead to decreased water clarity, which can negatively impact the ecosystem of a water body.

Currently, the international turbidity standard is widely used in various fields such as ecology, hydrology, biology and medicine. It is also used in industry to control water quality during production and wastewater treatment.

Thus, the international turbidity standard is one of the important tools for monitoring and assessing the quality of water bodies. It allows measurement results to be compared between different laboratories and ensures uniformity in turbidity assessment.