ISO/TC 69/SC 6

Projekta Nr.ISO 5725-3:2023
Nosaukums<p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">This document provides</span></p> <p class="ListNumber1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">a)<span style="mso-tab-count: 1;">    </span>a discussion of alternative experimental designs for the determination of trueness and precision measures including reproducibility, repeatability and selected measures of intermediate precision of a standard measurement method, including a review of the circumstances in which their use is necessary or beneficial, and guidance as to the interpretation and application of the resulting estimates, and</span></p> <p class="ListNumber1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">b)<span style="mso-tab-count: 1;">    </span>worked examples including specific designs and computations.</span></p> <p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">Each of the alternative designs discussed in this document is intended to address one (or several) of the following issues:</span></p> <p class="ListNumber1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">a)<span style="mso-tab-count: 1;">    </span>a discussion of the implications of the definitions of intermediate precision measures;</span></p> <p class="ListNumber1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">b)<span style="mso-tab-count: 1;">    </span>a guidance on the interpretation and application of the estimates of intermediate precision measures in practical situations;</span></p> <p class="ListNumber1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">c)<span style="mso-tab-count: 1;">    </span>determining reproducibility, repeatability and selected measures of intermediate precision;</span></p> <p class="ListNumber1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">d)<span style="mso-tab-count: 1;">    </span>improved</span><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;"> determination of reproducibility and other measures of precision;</span></p> <p class="ListNumber1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">e)<span style="mso-tab-count: 1;">    </span>improving the estimate of the sample mean;</span></p> <p class="ListNumber1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">f)<span style="mso-tab-count: 1;">     </span>determining the range of in-house repeatability standard deviations;</span></p> <p class="ListNumber1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">g)<span style="mso-tab-count: 1;">    </span>determining other precision components such as operator variability;</span></p> <p class="ListNumber1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">h)<span style="mso-tab-count: 1;">    </span>determining the level of reliability of precision estimates;</span></p> <p class="ListNumber1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">i)<span style="mso-tab-count: 1;">     </span>reducing the minimum number of participating laboratories by optimizing the reliability of precision estimates;</span></p> <p class="ListNumber1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">j)<span style="mso-tab-count: 1;">     </span>avoiding distorted estimations of repeatability (split-level designs);</span></p> <p class="ListNumber1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">k)<span style="mso-tab-count: 1;">    </span>avoiding distorted estimations of reproducibility (taking the heterogeneity of the material into consideration).</span></p> <p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">Often, the performance of the method whose precision is being evaluated in a collaborative study will have previously been assessed in a single-laboratory validation study conducted by the laboratory which developed it. Relevant factors for the determination of intermediary precision will have been identified in this prior single-laboratory study.</span></p>
Reģistrācijas numurs (WIID)69420
Darbības sfēra<p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">This document provides</span></p> <p class="ListNumber1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">a)<span style="mso-tab-count: 1;">    </span>a discussion of alternative experimental designs for the determination of trueness and precision measures including reproducibility, repeatability and selected measures of intermediate precision of a standard measurement method, including a review of the circumstances in which their use is necessary or beneficial, and guidance as to the interpretation and application of the resulting estimates, and</span></p> <p class="ListNumber1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">b)<span style="mso-tab-count: 1;">    </span>worked examples including specific designs and computations.</span></p> <p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">Each of the alternative designs discussed in this document is intended to address one (or several) of the following issues:</span></p> <p class="ListNumber1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">a)<span style="mso-tab-count: 1;">    </span>a discussion of the implications of the definitions of intermediate precision measures;</span></p> <p class="ListNumber1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">b)<span style="mso-tab-count: 1;">    </span>a guidance on the interpretation and application of the estimates of intermediate precision measures in practical situations;</span></p> <p class="ListNumber1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">c)<span style="mso-tab-count: 1;">    </span>determining reproducibility, repeatability and selected measures of intermediate precision;</span></p> <p class="ListNumber1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">d)<span style="mso-tab-count: 1;">    </span>improved</span><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;"> determination of reproducibility and other measures of precision;</span></p> <p class="ListNumber1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">e)<span style="mso-tab-count: 1;">    </span>improving the estimate of the sample mean;</span></p> <p class="ListNumber1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">f)<span style="mso-tab-count: 1;">     </span>determining the range of in-house repeatability standard deviations;</span></p> <p class="ListNumber1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">g)<span style="mso-tab-count: 1;">    </span>determining other precision components such as operator variability;</span></p> <p class="ListNumber1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">h)<span style="mso-tab-count: 1;">    </span>determining the level of reliability of precision estimates;</span></p> <p class="ListNumber1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">i)<span style="mso-tab-count: 1;">     </span>reducing the minimum number of participating laboratories by optimizing the reliability of precision estimates;</span></p> <p class="ListNumber1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">j)<span style="mso-tab-count: 1;">     </span>avoiding distorted estimations of repeatability (split-level designs);</span></p> <p class="ListNumber1" style="tab-stops: 19.85pt 39.7pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm; mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">k)<span style="mso-tab-count: 1;">    </span>avoiding distorted estimations of reproducibility (taking the heterogeneity of the material into consideration).</span></p> <p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho'; mso-fareast-theme-font: minor-fareast;">Often, the performance of the method whose precision is being evaluated in a collaborative study will have previously been assessed in a single-laboratory validation study conducted by the laboratory which developed it. Relevant factors for the determination of intermediary precision will have been identified in this prior single-laboratory study.</span></p>
StatussStandarts spēkā
ICS grupa03.120.30
17.020