This test method is a colorimetric test method for measuring hexavalent chromium (Cr⁶⁺) in water samples. This method is based on the formation of a colored complex between hexavalent chromium and a specific reagent, allowing sensitive and selective detection.
This test method is a standardized analytical procedure for the determination of common inorganic ions in water samples using ion chromatography (IC). It is widely used for monitoring drinking water, wastewater, and environmental samples for regulatory compliance and water quality assessment. This test method can quantify bromide, chloride, fluoride, nitrate as N, nitrate+nitrite as N,… Continue reading Ion Chromatography [Non-Preserved]
This test method is a standardized analytical procedure for the determination of common inorganic ions in water samples using ion chromatography (IC). It is widely used for monitoring drinking water, wastewater, and environmental samples for regulatory compliance and water quality assessment. This test method can quantify nitrate as N, nitrate+nitrite as N, and nitrite as… Continue reading Ion Chromatography [Preserved sample]
This test method is a standardized procedure for the isolation and enumeration of lactic acid bacteria (LAB) in food samples. LAB are important microorganisms in food fermentation, spoilage, and safety assessments. This method is commonly used for testing dairy, meat, fermented products, and other foods where LAB are either beneficial or indicators of microbial activity.
This test method is a calculated value used to assess the scaling or corrosive tendency of water, particularly in water treatment, cooling systems, boilers, and municipal water supplies. It indicates whether water will precipitate, dissolve, or be in equilibrium with calcium carbonate (CaCO₃).
This test method is a presumptive quantification of leuconostoc spp. in fermentation samples found within the ethanol production process.
This test method is a rapid molecular detection method validated for the qualitative detection of Listeria monocytogenes in food and environmental samples. This method was evaluated and approved under the AOAC Performance Tested Methods program, confirming its reliability and equivalence to reference culture-based methods.
This test method determines the color of oils and other transparent liquids by comparing samples to calibrated Lovibond® or Gardner liquid standards, providing a standardized visual evaluation of red/yellow (RYBN) tint and overall Gardner color to ensure consistent color grading across batches.
This test method is a validated rapid detection method for the qualitative identification of Listeria species, including but not limited to Listeria monocytogenes, in food and environmental samples. It is approved through the AOAC Performance Tested Methods (PTM) program, ensuring it meets rigorous criteria for sensitivity, specificity, and reliability when compared to traditional reference methods.
This test method is a standard test method for the quantitative determination of up to 22 metals in oils using ICP-MS technology. The method is widely used for monitoring contaminants in oils.