This test method quantifies the volume of solids in a sample that settle out of suspension within a specified time under quiescent conditions. It is used to assess the settleability of solids in treatment processes, such as sedimentation in wastewater systems.
This test method is a gravimetric procedure for determining Total Solids (TS) in water, wastewater, and sludge samples by measuring the residue remaining after drying.
This test method determines Total Suspended Solids (TSS) in water and wastewater samples. TSS refers to the dry weight of particles trapped by a glass fiber filter.
This test method is used to determine the temperature of a substance using a certified thermometer.
This test method is a procedure for determining Total Volatile Solids (TVS) in water, sludge, or wastewater samples. TVS refers to the portion of total solids that is lost upon ignition at 550°C, representing the organic matter content.
This test method is a procedure for the analysis of Total Kjeldahl Nitrogen (TKN), a key parameter used to determine the organic nitrogen and ammonia content in samples such as wastewater, soils, and agricultural products. The test sample is first filtered, then proceeds with the analysis of TKN.
This test method is a calculation that is a commonly used index in water and soil science that indicates the relative concentration of sodium (Na⁺) to calcium (Ca²⁺) and magnesium (Mg²⁺) in water.
This test method is a turbidimetric procedure used to determine sulfate (SO₄²⁻) concentrations in water samples. This method is widely used due to its simplicity, rapid results, and reliability for routine water quality testing.
This test method is a standard procedure used for the quantitative analysis of oil and grease in water and wastewater samples. It is commonly employed to monitor pollution and compliance with environmental regulations.
This test method is a gravimetric procedure used to quantify total oil and grease content in water and wastewater, with the ability to differentiate between polar and non-polar fractions.