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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">izmertech</journal-id><journal-title-group><journal-title xml:lang="ru">Измерительная техника</journal-title><trans-title-group xml:lang="en"><trans-title>Izmeritel`naya Tekhnika</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0368-1025</issn><issn pub-type="epub">2949-5237</issn><publisher><publisher-name>ФГУП "ВНИИФТРИ"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32446/0368-1025it.2021-7-22-26</article-id><article-id custom-type="elpub" pub-id-type="custom">izmertech-1921</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ГОСУДАРСТВЕННЫЕ ЭТАЛОНЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>STATE STANDARDS</subject></subj-group></article-categories><title-group><article-title>Государственный первичный эталон единиц объёмного и массового расходов газа ГЭТ 118-2017: история создания, подтверждение калибровочных и измерительных возможностей</article-title><trans-title-group xml:lang="en"><trans-title>State primary standard of gas volumetric and mass flow rate units GET 118-2017: history of creation, confirmation of calibration and measurement capabilities</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0927-8776</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Горчев</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Gorchev</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Иванович Горчев</p><p>г. Казань</p></bio><bio xml:lang="en"><p>Aleksandr I. Gorchev</p><p>Kazan</p></bio><email xlink:type="simple">nio13@vniir.org</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2580-5521</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мингалеев</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Mingaleev</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Айдар Вилорович Мингалеев</p><p>г. Казань</p></bio><bio xml:lang="en"><p>Aidar V. Mingaleev</p><p>Kazan</p></bio><email xlink:type="simple">aydarmv@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1489-7245</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Яковлев</surname><given-names>А. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Yakovlev</surname><given-names>A. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Анатолий Борисович Яковлев</p><p>г. Казань</p></bio><bio xml:lang="en"><p>Anatoly B. Yakovlev</p><p>Kazan</p></bio><email xlink:type="simple">abyakovlev@vniir.org</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Всероссийский научно-исследовательский институт расходометрии – филиал ФГУП «Всероссийский научноисследовательский институт метрологии им. Д. И. Менделеева»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>VNIIR – Affiliated Branch of the D. I. Mendeleyev Institute for Metrology</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>07</day><month>08</month><year>2023</year></pub-date><volume>0</volume><issue>7</issue><fpage>22</fpage><lpage>26</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; ФГУП "ВНИИФТРИ", 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">ФГУП "ВНИИФТРИ"</copyright-holder><copyright-holder xml:lang="en">ФГУП "ВНИИФТРИ"</copyright-holder><license xlink:href="https://www.izmt.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.izmt.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.izmt.ru/jour/article/view/1921">https://www.izmt.ru/jour/article/view/1921</self-uri><abstract><p>Представлена история создания Государственного первичного эталона единиц объёмного и массового расходов газа ГЭТ 118-2017. Отмечена значительная роль проведённых международных сличений на различных этапах создания ГЭТ 118-2017: результаты сличений подтвердили и позволили включить в базу данных KCDB калибровочные и измерительные возможности Российской Федерации в области измерений объёмного расхода газа, а также способствовали определению направлений и мероприятий по совершенствованию эталона. Описан запатентованный способ компарирования для калибровки критических сопел, реализованный в ГЭТ 118-2017 для передачи рабочим эталонам единиц объёмного и массового расходов газа. Представлены конструкция, состав и характеристики ГЭТ 118-2017. В настоящее время к ГЭТ 118-2017 прослеживаются более 700 рабочих эталонов единиц объёмного и массового расходов газа, применяемых в Российской Федерации и некоторых странах – членах KOOMET, общее количество обращений к ГЭТ 118-2017 для передачи единицы величины превышает 3500 в год.</p></abstract><trans-abstract xml:lang="en"><p>The history of the creation of the State primary standard of gas volumetric and mass flow rate units GET 118-2017 is presented. The significant role of international comparisons was noted at various stages of the creation of GET 118-2017: the comparisons results confirmed and made it possible to include in the KCDB the calibration and measurement capabilities of the Russian Federation in the field of gas volumetric flow measurements, and also helped to determine the direction and list of measures to improve the standard. A patented comparison method for calibrating critical nozzles, implemented in GET 118-2017 for transfer the units of volumetric and mass flow rates of gas to working standards, is described. The design, composition and characteristics of GET 118-2017 are presented. Currently, more than 700 working standards of gas volumetric and mass flow rates used in the Russian Federation and some KOOMET member countries are traced to GET 118-2017, the total number of calls to GET 118-2017 for the transfer of measurement units exceeds 3500 per year.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>государственный первичный эталон</kwd><kwd>расход газа</kwd><kwd>сличение эталонов</kwd><kwd>калибровочные и измерительные возможности</kwd><kwd>критическое сопло</kwd><kwd>компаратор</kwd></kwd-group><kwd-group xml:lang="en"><kwd>national primary standard</kwd><kwd>comparison of standards</kwd><kwd>gas flow rate</kwd><kwd>calibration and measurement capability</kwd><kwd>sonic nozzle</kwd><kwd>comparator</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Фишман И. И., Раинчик С. В., Красавин В. М., Семенова О. К. 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