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class="search-block--container-title">Calibration and Measurement Capabilities – CMCs</div> <form class="search-block--form" action="/kcdb/cmc/quick-search" method="get"> <input class="search-block--form_field" type="text" name="keywords" placeholder="Type a keyword"/> <button class="search-block--form_submit" type="submit">SEARCH</button> <div class="help-popup-container search-block--hint"> <a class="help-bth">?</a> <div class="help-popup help-popup--right"><span>Added keywords act as an additional filter. Keywords separated by a space will be treated by the logical function AND automatically. You may also use OR. Keyword searches also find close matches. 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Keywords separated by a space will be treated by the logical function AND automatically. You may also use OR. Keyword searches also find close matches. Placing quotation marks (") before and after the search word, e.g. "word", will allow for exact matches.</span><br /><br /><span>In case of multiple search, please use ADVANCED SEARCH.</span></div> </div> </form> <a class="search-block--link" href="/kcdb/comparison/advanced-search"> <img src="/kcdb/static/img/arrow-right-e65bf49ac9efa7456ad8c736bb054193.png" /> <span class="search-block--link-text">Advanced search</span> </a> </div> </div> </div> </div> </section> <section class="homepage-body"> <div class="container"> <div class="row"> <div class="col-lg-12 col-md-12 col-sm-12 col-xs-12 clearfix corection"> <div class="homepage-body--container news"> <div class="homepage-body--container__title">News</div> <div class="homepage-body--container__scroll mCustomScrollbar"> <div class="homepage-body--container__item"> <div class="date"> <span class="day">18</span> <span class="month">FEBRUARY</span> <span class="year">2025</span> </div> <div class="title"><strong>Key  Comparison - Chemistry</strong></div> <div class="text-block green"><span>The Final report and results of the key comparison <a href="https://www.bipm.org/kcdb/comparison?id=1878" target="_blank"><strong>CCQM-K96.2023</strong></a> have been published in the KCDB. This is a comparison on the determination of the amount content of oxidants, coordinated by <strong>Korea Research Institute of Standards and Science</strong> (<strong>KRISS</strong>), <strong>Korea</strong> and included participants from 7 state economies.</span></div> </div> <div class="homepage-body--container__item"> <div class="date"> <span class="day">17</span> <span class="month">FEBRUARY</span> <span class="year">2025</span> </div> <div class="title"><strong>Key  Comparison - Electrochemistry</strong></div> <div class="text-block green"><span>The results of <a href="https://www.bipm.org/kcdb/comparison?id=1921" target="_blank"><strong>CCQM-K73.2018.3</strong></a> linked to those of CCQM-K73.2018 have been published in the KCDB. This is a comparison on the determination of the concentration of H<sup>+</sup> in hydrochloric acid solution. The comparison was coordinated by <strong>National Institute of Metrology</strong> (<strong>NIM</strong>), <strong>China</strong>, with the participation of <strong>TÜBITAK Ulusal Metroloji</strong> <strong>Enstitüsü</strong> (<strong>UME</strong>), <strong>Türkiye</strong>.</span></div> </div> <div class="homepage-body--container__item"> <div class="date"> <span class="day">14</span> <span class="month">FEBRUARY</span> <span class="year">2025</span> </div> <div class="title"><strong>Key comparison - CCEM</strong></div> <div class="text-block green">The Final report of the key comparison <strong><a href="https://www.bipm.org/kcdb/comparison?id=599" target="_blank">CCEM.RF-K5.c.CL</a></strong> has been published in the KCDB. This is a comparison for scattering parameters and reflection coefficients by broad-band method, piloted by the <strong>National Metrology Institute of Japan</strong> (<strong>NMIJ</strong>) <strong>Japan</strong> in which 15 state economies paricipated.</div> </div> <div class="homepage-body--container__item"> <div class="date"> <span class="day">13</span> <span class="month">FEBRUARY</span> <span class="year">2025</span> </div> <div class="title"><strong>Electricity and Magnetism - AFRIMETS</strong></div> <div class="text-block yellow"><span><a href="https://www.bipm.org/kcdb/cmc/search?domain=PHYSICS&areaId=2&keywords=&specificPart.branch=-1&specificPart.service=-1&specificPart.subService=-1&specificPart.individualService=-1&_countries=1&status=Published&publicDateFrom=2025-02-13&publicDateTo=2025-02-13&unit=-1&minValue=&maxValue=&minUncertainty=&maxUncertainty=" target="_blank">3 new CMCs</a> have recently been published in the KCDB for <strong>Egypt</strong> and <strong>Ethiopia</strong> via AFRIEMTS, in the field of Electricity and Magnetism.</span></div> </div> </div> <div class="homepage-body--container__item more-news-btn"> <a class="homepage-body--container__more-news-btn" href="/kcdb/news">See all news</a> </div> </div> <div class="homepage-body--container statistics"> <div class="homepage-body--container__title">Statistics</div> <div class="homepage-body--container__item"> <div class="map-container"> <img class="map-container__img" src="/kcdb/static/img/map-no-logo-trimmed-730w-351fd8ed2b8dc5e095cb3f2c2c6b9248.png" /> <a class="popup-modal" href="#statistics-modal" onclick="openStatistics(this.getAttribute('data-rmo-id'), this.getAttribute('data-rmo-code'), this); return false;" data-rmo-id="11" data-rmo-code="AFRIMETS"> <span class="statistics_rmo map_buton_AFRIMETS">AFRIMETS</span> </a> <a class="popup-modal" href="#statistics-modal" onclick="openStatistics(this.getAttribute('data-rmo-id'), this.getAttribute('data-rmo-code'), this); 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class="homepage-body--container__achievements--item-text">key comparisons</span> </div> <div class="homepage-body--container__achievements--item"> <span class="homepage-body--container__achievements--item-num">26130</span> <span class="homepage-body--container__achievements--item-text">CMCs</span> </div> <div class="homepage-body--container__achievements--item"> <span class="homepage-body--container__achievements--item-num">719</span> <span class="homepage-body--container__achievements--item-text">supplementary comparisons</span> </div> </div> </div> <div> <ul class="statistics-list"> <li class="statistics-list__item"> <a class="statistics-list__link" href="/kcdb/cmc/statistics/public"> <img src="/kcdb/static/img/arrow-right-e65bf49ac9efa7456ad8c736bb054193.png" /> <span class="statistics-list-text">CMC statistics</span> </a> </li> <li class="statistics-list__item"> <a class="statistics-list__link" href="/kcdb/comparison/statistics/key"> <img 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