Total Volatile Solids

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.

Turbidity

This test method is a procedure for measuring turbidity in water and wastewater using a turbidimeter, an instrument that detects the intensity of light scattered at a 90-degree angle by suspended particles in the sample.

Temperature

This test method is used to determine the temperature of a substance using a certified thermometer.

TKN [Kjeldahl Nitrogen – Soluble]

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.

TKN [Kjeldahl Nitrogen – Total as N]

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.

Total Dissolved Solids

This test method is a gravimetric procedure that measures the residue remaining after a water sample is filtered and evaporated at 180°C.

Sodium Absorption Ratio

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.

Sulfate [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.

Oil & Grease

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.

Oil & Grease [Polar and Non-Polar]

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.