This test method describes the enzyme-substrate-based detection of total coliforms and Escherichia coli in drinking water, surface water, and wastewater using the Colilert® test. This method is based on defined substrate technology, where specific enzymes produced by coliforms and E. coli react with added substrates to produce color and fluorescence, allowing for easy detection and… Continue reading Coliform / E.coli [Quanti-Tray (18 hr)]
This test method is a validated microbiological method for detecting and enumerating coliform bacteria in food products using 3M™ Petrifilm™ Coliform Count Plates. It offers a rapid and convenient alternative to traditional agar plating methods and is widely accepted in food microbiology for quality control and regulatory compliance.
This test method is a spectrophotometric method based on the NCASI (National Council for Air and Stream Improvement) Method 253 for determining true color in water and wastewater. It quantifies color in Platinum-Cobalt Units (PCU), also known as Color Units (CU), using standardized absorbance measurements at 455 nm.
This test method describes the standardized procedure for measuring the electrical conductivity of water and wastewater, which reflects the sample’s ability to conduct electrical current due to the presence of dissolved ionic species (such as salts, acids, and bases). Conductivity is a key indicator of total dissolved solids (TDS) and overall water quality.
This test method is a classical gravimetric method used to determine crude fat content in animal feeds through solvent extraction. It is widely applied in feed analysis to quantify the total fat (lipid) content, including triglycerides, phospholipids, and other hexane-soluble materials.
This test method is a classical gravimetric method used to determine crude fat content in animal feeds through solvent extraction. It is widely applied in feed analysis to quantify the total fat (lipid) content, including triglycerides, phospholipids, and other hexane-soluble materials. High moisture samples are mixed with celite, or diatomaceous earth, prior to analysis to… Continue reading Crude Fat [Hexane w/ celite]
This test method determines oil content in oilseed meals and cakes by measuring the petroleum‑ether–soluble fraction under defined extraction conditions. It is also the designated official oil analysis method used in NOPA referee testing.
This test method is a classical gravimetric method used to determine crude fat content in animal feeds through solvent extraction. It is widely applied in feed analysis to quantify the total fat (lipid) content, including triglycerides, phospholipids, and other hexane-soluble materials. High moisture samples are mixed with celite, or diatomaceous earth, prior to analysis to… Continue reading Crude Fat [w/ celite – Vac Oven]
This test method is a classical gravimetric method used to determine crude fat content in animal feeds through solvent extraction. It is widely applied in feed analysis to quantify the total fat (lipid) content, including triglycerides, phospholipids, and other ether-soluble materials. High moisture samples are mixed with celite, or diatomaceous earth, prior to analysis to… Continue reading Crude Fat [w/ celite]
This test method is a classical gravimetric method used to determine crude fat content in animal feeds through solvent extraction. It is widely applied in feed analysis to quantify the total fat (lipid) content, including triglycerides, phospholipids, and other ether-soluble materials.