Objective: To assess the adequacy of linear function of calibration according to GOST R ISO 11095-2007 for ethanol mass concentration measurement using internal reference materials (RMs).
Material And Methods: An experiment on calibration in accordance with the GOST R ISO 11095-2007 National standard of the RF was carried out using internal RMs, namely aqueous solutions of ethanol at different concentrations. Measurements were performed for two subbands of ethanol concentrations at RMs: 0.
Sud Med Ekspert
August 2019
The objective of the analysis of the situational expertises performed during criminal investigations consists of the confirmation (or refutation) of a concrete version of the situation of interest, the possibility of trace formation, and the availability of facts awaiting interpretation from the medical perspective. The present study was carried out with the use of such methods as recording facts, conditions, and circumstances of the versions of the event being investigated, measurements, description, comparison, experiment, modeling, mathematical and cybernetic simulation as well as euristic technologies. The concrete expertise described in the present publication revealed the possibility of the evaluation of the appearance of specific traces associated with a given situation.
View Article and Find Full Text PDFThe national standard of laboratory quality control is based on a assumption about normal distribution of random error. The data of procedure of quality control get from analyzer Flexor XL during three months period were examined. The distributions of random error were non-Gauss ones in almost half of all examined tests by reason of both abnormal asymmetry and excess.
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