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18:00 Jan 31, 2023 |
English to Polish translations [PRO] Science - Mathematics & Statistics | |||||||
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| Selected response from: Frank Szmulowicz, Ph. D. United States Local time: 23:34 | ||||||
Grading comment
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Summary of answers provided | ||||
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3 +1 | logarytm dziesiętny wartości pomiaru |
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Summary of reference entries provided | |||
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This British Standard is the UK implementation of EN ISO 16140‑4 |
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Discussion entries: 1 | |
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logarytm dziesiętny wartości pomiaru Explanation: See https://www.academia.edu/36229380/Use_of_Dried_Spots_of_Whol... |
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Grading comment
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6 hrs peer agreement (net): +1 |
Reference: This British Standard is the UK implementation of EN ISO 16140‑4 Reference information: In-house repeatability standard deviation and in-house reproducibility standard deviation are important performance characteristics of any measurement method. They describe precision of the alternative method under in-house repeatability conditions and in-house reproducibility conditions. One (food) item is selected per (food) category for the determination of the in-house repeatability standard deviation and the in-house reproducibility standard deviation. If the artificially contaminated (food) item is sufficiently stable, microbiologically, tests are conducted on eight different days by three or more technicians. No technician shall conduct tests on more than three days. However, if only two technicians are available, then each technician shall conduct tests on four days. If only one technician is available, this technician shall conduct all tests, but the method is then validated only for this technician. On each day, one of the technicians performs tests on five replicates using the alternative method, yielding a total of 8 × 5 = 40 tests. In addition, five replicate tests are performed using the reference method on day one as a control. The in-house repeatability standard deviation is calculated as shown by Formula (5): sr ,in-house = where 22 yij yj = 1 5 5 ∑ yij i =1 1 32 ∑ j=1 ∑ i=1 ( yij − y j ) 8 5 2 (5) is the log10 measurement of the ith replicate on day j; is the average over the five log10 measurements on day j. - https://dokument.pub/iso-16140-42020-flipbook-pdf.html |
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