Quantitative Chemical (Beverage Alcohol)

The Quantitative Chemical (Beverage Alcohol) Proficiency Test is designed to test forensic examiners that perform quantitative chemical analyses of beverage alcohol samples. Two samples will be distributed in each test. Participants will be asked to report the results of quantitative analysis, as well as measurement uncertainty. Laboratory performance will be assessed by z-score and En-score using statistical methods described in ISO 13528:2005(E).