Tag Archives: calibration

Permalink to Self-Regulating Butchers and Police Officers

Self-Regulating Butchers and Police Officers

Pennsylvania residents don’t trust self-regulating butchers, so why do they trust self-regulating police officers and technicians? I came across an article about self-regulation that I would like to share: Pennsylvania mulls handing weights and measures inspection to private sector When consumers get a bad meal, they know it. But getting shortchanged on a few ounces of […]

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Permalink to Personal bias is bad, but analytical bias spells disaster in DUI BAC and Drugs of Abuse testing

Personal bias is bad, but analytical bias spells disaster in DUI BAC and Drugs of Abuse testing

All analytical devices are subject to analytical drift. Analytical drift occurs during as a result of just good old fashioned use or over time even with a lack of use. As the machine is used time and time again, it will become less precise and/or less accurate. Accuracy is characterized by large standard deviation with […]

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