A federal grand jury in Dallas returned a 30-count indictment against 13 analytical chemists, laboratory technicians, and managers of Intertek Testing Services for allegedly manipulating test data to indicate that test equipment was properly calibrated when it was not.
Metrology is the science of measurement.
Measurement systems must be assessed for accuracy and precision. Inaccurate or inprecise measurement systems do not provide a true measure of the dimension being assessed. The use of an uncalibrated measurement system is akin to measuring the size of your foot with a ruler that claims to be 12 inches long but which is actually 14 inches long. You will systematically obtain readings which are too long. The use of an inprecise measurement system is akin to measuring your foot with a rubber ruler.