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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 custom-type="elpub" pub-id-type="custom">izmertech-330</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>Исследование метрологических характеристик Государственного первичного эталона единицы звукового давления в воздушной среде в диапазоне частот 2-25∙103 Гц ГЭТ 19-2010</article-title><trans-title-group xml:lang="en"><trans-title></trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Коньков</surname><given-names>А. В.</given-names></name></name-alternatives><email xlink:type="simple">akustika@vniiftri.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кузнецов</surname><given-names>С. В.</given-names></name></name-alternatives><email xlink:type="simple">akustika@vniiftri.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Колесов</surname><given-names>С. Ю.</given-names></name></name-alternatives><email xlink:type="simple">akustika@vniiftri.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>Всероссийский научно-исследовательский институт физико-технических и радиотехнических измерений</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>07</day><month>02</month><year>2023</year></pub-date><volume>0</volume><issue>4</issue><fpage>5</fpage><lpage>8</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/330">https://www.izmt.ru/jour/article/view/330</self-uri><abstract><p>Рассмотрена структура и исследованы основные метрологические характеристики Государственного первичного эталона единицы звукового давления в воздушной среде в диапазоне частот 2-25∙103 Гц (ГЭТ 19-2010). Приведены данные международных ключевых сличений CCAUV.А-К5. Результаты измерений, проведённых во ВНИИФТРИ, согласуются с результатами ведущих национальных метрологических институтов и подтверждают достоверность заявленных метрологических характеристик ГЭТ 19-2010.</p></abstract><trans-abstract xml:lang="en"><p>The structure and basic metrological characteristics of the State primary measurement standard of the sound pressure unit in air at frequency range 2-25∙103 Hz (GET 19-2010) are considered. The Key Comparison СCAUV.A-K5 data is given. The results of VNIIFTRI measurements are in agreement with the results of the leading national metrological institutions confirming the accuracy of the declared metrological characteristics of GET 19-2010.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>государственный первичный эталон</kwd><kwd>метрологические характеристики</kwd><kwd>ключевые сличения</kwd><kwd>primary national measurement standard</kwd><kwd>metrological characteristics</kwd><kwd>key comparisons</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">IEC 61094-1: 2000. Electroacoustics - Measurement Microphones - Part 1: Specifications for laboratory standard microphones.</mixed-citation><mixed-citation xml:lang="en">IEC 61094-1: 2000. 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