{"id":425145,"date":"2024-10-20T06:55:17","date_gmt":"2024-10-20T06:55:17","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bsi-pd-iec-tr-632502021-3\/"},"modified":"2024-10-26T13:02:27","modified_gmt":"2024-10-26T13:02:27","slug":"bsi-pd-iec-tr-632502021-3","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bsi-pd-iec-tr-632502021-3\/","title":{"rendered":"BSI PD IEC TR 63250:2021"},"content":{"rendered":"<p>This Technical Report deals with the determination of repeatability and reproducibility of test methods used for assessing the performance characteristics of household and similar electrical appliances. It also provides guidance for carrying out round robin tests (RRT).<\/p>\n<p>It also specifies the uncertainty reporting of measurements of household and similar electrical appliances.<\/p>\n<p>It describes methods to estimate the uncertainty of a measured result and to predict the range of measured values when the same appliance is measured in another laboratory applying the same measurement method.<\/p>\n<p>It does not cover the development of measurement methods. It also does not deal with:<\/p>\n<ul>\n<li>\n<p>the production variability of the appliance;<\/p>\n<\/li>\n<li>\n<p>how closely the measurement method reflects the normal use of appliances in households.<\/p>\n<\/li>\n<\/ul>\n<blockquote>\n<p>NOTE 1 Although this technical report does not cover the development of test methods, it can be taken into consideration for this purpose.<\/p>\n<\/blockquote>\n<blockquote>\n<p>NOTE 2 For the purpose of this technical report production variability includes the variation of the individual appliances of the same type and model manufactured on the same production line.<\/p>\n<\/blockquote>\n<blockquote>\n<p>NOTE 3 For noise standardisation, some deviating definitions are used (see. IEC 60704-3:2019).<\/p>\n<\/blockquote>\n<h4>PDF Catalog<\/h4>\n<table border=\"1px\" class=\"des-table\">\n<tr>\n<th>PDF Pages<\/th>\n<th>PDF Title<\/th>\n<\/tr>\n<tr>\n<td><b>2<b><\/td>\n<td>undefined  <\/td>\n<\/tr>\n<tr>\n<td><b>4<b><\/td>\n<td>CONTENTS  <\/td>\n<\/tr>\n<tr>\n<td><b>6<b><\/td>\n<td>FOREWORD  <\/td>\n<\/tr>\n<tr>\n<td><b>8<b><\/td>\n<td>INTRODUCTION  <\/td>\n<\/tr>\n<tr>\n<td><b>9<b><\/td>\n<td>1 Scope <br \/> 2 Normative references <br \/> 3 Terms and definitions  <\/td>\n<\/tr>\n<tr>\n<td><b>12<b><\/td>\n<td>4 Determination of standard deviations <br \/> 4.1 General <br \/> 4.2 Repeatability standard deviation <br \/> 4.3 Reproducibility standard deviation  <\/td>\n<\/tr>\n<tr>\n<td><b>13<b><\/td>\n<td>5 Assessment of repeatability, reproducibility, and uncertainty of a measurement method <br \/> 5.1 Purpose <br \/> 5.2 Requirements  <\/td>\n<\/tr>\n<tr>\n<td><b>14<b><\/td>\n<td>5.3 Expression of repeatability and reproducibility <br \/> 5.4.1 The importance of the uncertainty <br \/> 5.4.2 Methods to estimate uncertainty  <\/td>\n<\/tr>\n<tr>\n<td><b>15<b><\/td>\n<td>5.4.3 Expanded uncertainty calculation  <\/td>\n<\/tr>\n<tr>\n<td><b>16<b><\/td>\n<td>6 Scrutiny of results for consistency and outliers <br \/> 6.1 Purpose <br \/> 6.2 Graphical consistency technique (Mandel&#8217;s h and k statistics) <br \/> 6.2.1 Inter-laboratory consistency statistic h <br \/> 6.2.2 Intra-laboratory consistency statistic k <br \/> 6.2.3 Evaluation  <\/td>\n<\/tr>\n<tr>\n<td><b>17<b><\/td>\n<td>6.3 Numerical outlier technique <br \/> 6.3.1 Cochran&#8217;s C test <br \/> 6.3.2 Grubbs&#8217; test <br \/> 6.3.3 Evaluation  <\/td>\n<\/tr>\n<tr>\n<td><b>18<b><\/td>\n<td>7 Data to be reported for assessing the repeatability, reproducibility and uncertainty of a test method <br \/> Figures <br \/> Figure 1 \u2013 Visualisation of straggler and outlier of Cochrane value   <\/td>\n<\/tr>\n<tr>\n<td><b>19<b><\/td>\n<td>Annex A (informative) Example of bottom-up analysis <br \/> A.1 General <br \/> A.2 Temperature measurement system <br \/> A.2.1 General <br \/> A.2.2 Calibration of thermocouples <br \/> A.2.3 Calibration of the DAQ system <br \/> A.3 Uncertainty temperature measurement  <\/td>\n<\/tr>\n<tr>\n<td><b>20<b><\/td>\n<td>Tables <br \/> Table A.1 \u2013 Description of uncertainty parameters  <\/td>\n<\/tr>\n<tr>\n<td><b>21<b><\/td>\n<td>A.4 Analysis of each component in the uncertainty formulation, example thermocouple simulator <br \/> Table A.2 \u2013 Measuring a temperature of \u221223 \u00b0C at a climate room temperature between 16 \u00b0C to 32 \u00b0C <br \/> Table A.3 \u2013 Expanded uncertainty in measured temperature (U(T), k = 2) at a room temperature in the range of 16 \u00b0C to 32 \u00b0C and a lab temperature between 14 \u00b0C and 32 \u00b0C  <\/td>\n<\/tr>\n<tr>\n<td><b>22<b><\/td>\n<td>Table A.4 \u2013 Calibration results of the simulator  <\/td>\n<\/tr>\n<tr>\n<td><b>23<b><\/td>\n<td>Annex B (informative) Guidance on how to conduct round robin tests for household and similar electrical appliances <br \/> B.1 General <br \/> B.2 Scope  <\/td>\n<\/tr>\n<tr>\n<td><b>24<b><\/td>\n<td>B.3 Process and responsibilities <br \/> B.3.1 Process  <\/td>\n<\/tr>\n<tr>\n<td><b>25<b><\/td>\n<td>B.3.2 Responsibilities <br \/> B.4 Testing laboratories <br \/> B.4.1 Potential laboratories  <br \/> B.4.2 Announcement   <\/td>\n<\/tr>\n<tr>\n<td><b>26<b><\/td>\n<td>B.4.3 Selection of laboratories <br \/> B.4.4 Final list of laboratories  <br \/> B.5 Transportation of the product <br \/> B.5.1 Logistics <br \/> B.5.2 Packaging <br \/> B.6 Test <br \/> B.6.1 Performance of test   <\/td>\n<\/tr>\n<tr>\n<td><b>27<b><\/td>\n<td>B.6.2 Laboratory visit  <br \/> B.6.3 Transmission of result  <br \/> B.7 Analysis, report and termination <br \/> B.7.1 Analysis  <br \/> B.7.2 Report  <\/td>\n<\/tr>\n<tr>\n<td><b>28<b><\/td>\n<td>B.7.3 Termination and publication of final external report  <\/td>\n<\/tr>\n<tr>\n<td><b>29<b><\/td>\n<td>Annex C (informative) Example of a round robin test and its analysis <br \/> C.1 General <br \/> C.2 Standard deviations and assessment of repeatability and reproducibility  <br \/> Table C.1 \u2013 Measurement results  <\/td>\n<\/tr>\n<tr>\n<td><b>30<b><\/td>\n<td>Table C.2 \u2013 Standard deviations, repeatability and reproducibility   <\/td>\n<\/tr>\n<tr>\n<td><b>31<b><\/td>\n<td>C.3 Scrutiny of results for consistency and outliers <br \/> C.3.1 Example of Mandel&#8217;s h and k statistics <br \/> C.3.2 Example of numerical outlier test <br \/> Table C.3 \u2013 Mandel&#8217;s h and k statistics <br \/> Table C.4 \u2013 Cochran&#8217;s test C and Grubbs&#8217; test G  <\/td>\n<\/tr>\n<tr>\n<td><b>32<b><\/td>\n<td>Figure C.1 \u2013 Mandel&#8217;s h statistics <br \/> Table C.5 \u2013 Cochran&#8217;s test C and Grubbs&#8217; test G summary  <\/td>\n<\/tr>\n<tr>\n<td><b>33<b><\/td>\n<td>Figure C.2 \u2013 Mandel&#8217;s k statistics  <\/td>\n<\/tr>\n<tr>\n<td><b>34<b><\/td>\n<td>Annex D (informative)Example of expression of results  <\/td>\n<\/tr>\n<tr>\n<td><b>35<b><\/td>\n<td>Bibliography   <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p><b>Household and similar electrical appliances. Method of measuring performance. Assessment of repeatability, reproducibility and uncertainty<\/b><\/p>\n<table class=\"shortdes-table\" style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/bsi\/\"><b>BSI<\/b><\/a><\/td>\n<td>2021<\/td>\n<td>38<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":425155,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-425145","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/425145","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/425155"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=425145"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=425145"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=425145"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}