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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.2022-7-24-29</article-id><article-id custom-type="elpub" pub-id-type="custom">izmertech-1607</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>История создания и модернизация государственных первичных эталонов единиц динамической, кинематической вязкости жидкости и плотности</article-title><trans-title-group xml:lang="en"><trans-title>The history of creation and modernization of the state primary standards of units of dynamic, kinematic viscosity of liquid and density</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3462-1027</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чекирда</surname><given-names>К. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Chekirda</surname><given-names>K. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Константин Владимирович Чекирда</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Konstantin V. Chekirda</p><p>St. Petersburg</p></bio><email xlink:type="simple">K.V.Chekirda@vniim.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7160-7078</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Демьянов</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Demyanov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алексей Алексеевич Демьянов</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Aleksey A. Demyanov</p><p>St. Petersburg</p></bio><email xlink:type="simple">A.A.Demyanov@vniim.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5763-1768</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Неклюдова</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Nekliudova</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Анастасия Александровна Неклюдова</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Anastasia A. Nekliudova</p><p>St. Petersburg</p></bio><email xlink:type="simple">A.A.Tsurko@vniim.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3665-3156</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Домостроев</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Domostroev</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алексей Владимирович Домостроев</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Aleksey V. Domostroev</p><p>St. Petersburg</p></bio><email xlink:type="simple">A.V.Domostroev@vniim.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5882-3160</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сулаберидзе</surname><given-names>В. Ш.</given-names></name><name name-style="western" xml:lang="en"><surname>Sulaberidze</surname><given-names>V. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владимир Шалвович Сулаберидзе</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Vladimir Sh. Sulaberidze</p><p>St. Petersburg</p></bio><email xlink:type="simple">Sula_vlad@mail.ru</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 метрологии им. Д. И. Менделеева</institution><country>Россия</country></aff><aff xml:lang="en"><institution>D. I. Mendeleyev Institute for Metrology (VNIIM)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>12</day><month>05</month><year>2023</year></pub-date><volume>0</volume><issue>7</issue><fpage>24</fpage><lpage>29</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/1607">https://www.izmt.ru/jour/article/view/1607</self-uri><abstract><p>Проанализировано современное состояние метрологической инфраструктуры Российской Федерации в области измерений плотности и вязкости. Описаны Государственный первичный эталон единиц динамической и кинематической вязкости жидкости ГЭТ 17-2018 и Государственный первичный эталон единицы плотности ГЭТ 18-2014 и пути их развития с момента создания. Приведены состав, принцип работы и основные метрологические характеристики рассматриваемых эталонов. Показана необходимость актуализации государственных поверочных схем для средств измерений плотности и вязкости жидкостей. Рассмотрены дальнейшие этапы совершенствования государственных первичных эталонов единиц динамической, кинематической вязкости жидкости и плотности. Перспективные направления совершенствования ГЭТ 17-2018 – автоматизация измерительных процессов – разработка автоматической системы отсчёта времени истечения исследуемой жидкости через капилляр вискозиметра, а также расширение верхних границ диапазонов значений динамической и кинематической вязкости и диапазона значений давления до 100 МПа. Основная задача совершенствования ГЭТ 18-2014 – создание основы для разработки методов метрологического обеспечения средств измерений плотности газов, в том числе природного газа при избыточном давлении не более 30 МПа и диапазоне значений температуры 0…100 °С. Приведены результаты ключевых сличений эталонов, подтверждающие калибровочные и измерительные возможности Российской Федерации в области измерений вязкости и плотности.</p></abstract><trans-abstract xml:lang="en"><p>The current state of the metrological infrastructure of the Russian Federation in the field of density and viscosity measurements is analyzed. The State primary standard of units of dynamic and kinematic viscosity of liquid GET 17-2018 and primary standard of unit of density GET 18-2014 and the ways of their development since their creation are described. The composition, the principle of operation and the main metrological characteristics of the standards under consideration are given. The necessity of updating the state verification schemes for measuring the density and viscosity of liquids is shown. Further stages of improvement of the state primary standards of units of dynamic, kinematic viscosity of liquid and density are considered. Promising areas of improvement of GET 17-2018 – automation of measuring processes – development of an automatic reference system for the expiration time of the test liquid through the capillary of the viscometer, as well as the expansion of the upper limits of the ranges of values of dynamic and kinematic viscosity and the range of pressure values up to 100 MPa. The main task of improving the GET 18-2014 is to create a basis for the development of metrological support methods for measuring the density of gases, including natural gas at an overpressure of no more than 30 MPa and a temperature range of 0... 100 ° C. The results of key comparisons of standards confirming the calibration and measuring capabilities of the Russian Federation in the field of viscosity and density measurements are presented.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>вязкость</kwd><kwd>динамическая вязкость</kwd><kwd>кинематическая вязкость</kwd><kwd>передача единицы</kwd><kwd>плотность</kwd><kwd>эталон</kwd></kwd-group><kwd-group xml:lang="en"><kwd>dynamic viscosity</kwd><kwd>kinematic viscosity</kwd><kwd>unit transfer</kwd><kwd>density</kwd><kwd>standard</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">Цурко А. А. История развития измерений вязкости // Материалы 27 симпозиума по реологии. 08–13 сентября 2014 г., Тверь, 2014. С. 70–71.</mixed-citation><mixed-citation xml:lang="en">Tsurko A. 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