Quantitative Proficiency Test (PT) for laboratories performing Conductivity by USP <644> or equivalent. Participants report quantitative results for conductivity, testing for material’s conductivity in micro siemens per centimeter (uS/cm), for their sample(s). Samples provided two vials containing 10g of material. Participants are asked to determine the conductivity of target analyte in the sample per the USP monograph or equivalent.
Target Analyte: Erythriol, powdered or granulated solid