Global Search
One query across documents (page by page), definitions, standards, questions, news, tools and training.
15 results for “Interlaboratory comparison”
Organization, performance, and evaluation of measurements on the same or similar items by two or more laboratories under predetermined conditions. ISO/IEC 17043:2023…
The statistical toolbox for proficiency testing: assigned values, performance statistics such as z-scores and En numbers, and homogeneity/stability assessment. ISO Statistics
Measurement precision under reproducibility conditions — what interlaboratory comparisons quantify. VIM (JCGM 200:2012) 2.25 Statistics
A standard, sometimes of special construction, intended for transport between locations — the artifacts that carry interlaboratory comparisons. VIM (JCGM 200:2012) 5.8 Standards…
Evaluation of participant performance against pre-established criteria by means of interlaboratory comparisons — an ISO/IEC 17025 requirement for demonstrating ongoing competence. ISO/IEC…
The interlaboratory comparison statistic En = (x − X) / √(U²(x) + U²(X)). |En| ≤ 1 indicates agreement within expanded uncertainties; it is the standard scoring for…
…Use of externally obtained data from calibrations, proficiency tests, and interlaboratory comparisons in the assessment of errors and bias in measurement results; and g…
…control through surveillance assessments, and ongoing stability as demonstrated through multiple interlaboratory comparisons or proficiency tests. Calibration intervals may be lengthened or shortened by…
…technical competence (e.g., by maintaining appropriate training records, participating in interlaboratory comparisons, and by demonstrating that they are accredited by a recognized accreditation…
…Periodic calibration is necessary on a defined regular, periodic basis, and when measurement control results from internal control charts or external interlaboratory comparisons indicate…
Questions post under a public pseudonym. Be specific — instrument, method, standard.