The "TS 5676 Water pollution control - Toxicity tests - Part 1" standard published by the Turkish Standards Institute (TSE) includes definitions of terms related to toxicity tests performed on fish, toxicity test methods and rules related to these tests.
In fact, the birth of water quality criteria for fish in the USA dates back to the 1900s. At the turn of the century, the effects of industrial wastes on fish began to be investigated and impact data on fish were published for many gas waste components. In this research, it was suggested that the toxicity of the wastes is different for different fish species and that smaller and younger fish are more affected by the toxic waste.
Toxicity levels of wastewater samples are determined in fish bioassays applied in wastewater. In these tests, the lethal wastewater concentrations are determined by the toxicity dilution factor (ZSF).
According to the water pollution control regulation published by the Ministry of Environment and Forestry, the toxicity dilution factor (ZSF) It is a unit used to determine the toxicity level of waters and the fish bioassay toxicity dilution factor parameter is checked when deemed necessary by the relevant administration.
In the tests and analyzes carried out in our organization, which has a wide range of technological equipment, trained and experienced staff and applies the most modern methods, national and international standards and legal regulations in force are complied with. Among the numerous tests performed in this context, there are also fish bioassay toxicity dilution factor (ZSF) determination (TS 5676) services.