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The approved instrument referred to, in the case below, was sent out for a recalibration, a few days after the client's subject tests. We...

Purpose: To explore the lack of a lab setting when accuracy and precision of the instrument are checked on periodic or annual inspection....

Purpose: To challenge the Crown's assertion that the AI will automatically shut down if anything is out of tolerance or ATC or...

Purpose: To remind the Court of the concept of "reliability" used by the SCC in St-Onge. To educate the Court as to the definitions of...

Purpose: To support argument that the Maintenance History shows that the instrument was taken "out of service", for "consistently low...

Purpose: To suggest that ATC/CFS scientists cannot provide any scientific opinion of the reliability of aging instruments out in the...

Purpose: To obtain admissions respecting the inadequacy of ATC / CFS recommendations in requiring "stability of metrological...

Sample cross-examination on the ATC and CFS Position Paper policy that every test stands on its own - that "reliability" has nothing to...

Purpose: To establish that the international literature indicates that all of the approved instrument's software is legally relevant to...

Purpose: To neutralize the government scientist's assertion that anomalous data should be excluded from calculation of precision. To...

Purpose: To establish that the ATC/CFS is not sampling from aging instruments out in the field to determine error rates To establish that...

Purpose: To obtain an admission that the ATC Position Paper of 2012 contradicts the federal government policy in the Fairness at the...

Why is disclosure of information about the "calibration" of the approved instrument essential to any assessment of the reliability of a...

Purpose: To obtain admissions that the published studies dealing with the linearity of approved instruments assume a new instrument...

This blog entry explores the use of a university textbook during cross-examination of a CFS scientist on "Instrumental Deviations from...

Sample cross-examination of CFS scientist on aging IR filters. IR instruments use light filters at the end of the sample chamber. As...

Purpose: To separate the concepts of "calibration" from "control checks" To clarify that "calibration" is something that happens at the...

Purpose: To educate the Court about the meaning of "traceability" in measurement science. To obtain an admission that there is a...