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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Lesnoy Vestnik / Forestry Bulletin</journal-id><journal-title-group><journal-title xml:lang="en">Lesnoy Vestnik / Forestry Bulletin</journal-title><trans-title-group xml:lang="ru"><trans-title>Лесной вестник / Forestry Bulletin</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2542-1468</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">706667</article-id><article-id pub-id-type="doi">10.18698/2542-1468-2024-4-147-156</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Wood processing and chemical processing of wood</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Деревообработка и химическая переработка древесины</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Wood density determination development and justification method</article-title><trans-title-group xml:lang="ru"><trans-title>Разработка и обоснование метода определения плотности древесины</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gainullin</surname><given-names>Renat H.</given-names></name><name xml:lang="ru"><surname>Гайнуллин</surname><given-names>Ренат Харисович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Tech.), Associate Professor of the Department of Woodworking Industries</p></bio><bio xml:lang="ru"><p>канд. техн. наук, доцент кафедры деревообрабатывающих производств</p></bio><email>gainyllinrh@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gainullin</surname><given-names>Rishat H.</given-names></name><name xml:lang="ru"><surname>Гайнуллин</surname><given-names>Ришат Харисович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Tech.), Associate Professor of the Department of Woodworking Industries</p></bio><bio xml:lang="ru"><p>анд. техн. наук, доцент кафедры деревообрабатывающих производств</p></bio><email>rishat_000@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Tsvetkova</surname><given-names>Ekaterina M.</given-names></name><name xml:lang="ru"><surname>Цветкова</surname><given-names>Екатерина Михайловна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Senior Lecturer of the Department of Standardization, Certification and Merchandising</p></bio><bio xml:lang="ru"><p>ст. преподаватель кафедры стандартизации, сертификации и товароведения</p></bio><email>Ekaterinadudina@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Safin</surname><given-names>Ruslan R.</given-names></name><name xml:lang="ru"><surname>Сафин</surname><given-names>Руслан Рушанович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Dr. Sci. (Tech.), Professor of the Department of Architecture and Design of Wood Products</p></bio><bio xml:lang="ru"><p>д-р техн. наук, профессор кафедры архитектуры и дизайна изделий из древесины</p></bio><email>cfaby@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Volga State University of Technology</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Поволжский государственный технологический университет»</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Kazan National Research Technological University</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Казанский национальный исследовательский технологический университет»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-08-15" publication-format="electronic"><day>15</day><month>08</month><year>2024</year></pub-date><volume>28</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>147</fpage><lpage>156</lpage><history><date date-type="received" iso-8601-date="2026-04-23"><day>23</day><month>04</month><year>2026</year></date><date date-type="accepted" iso-8601-date="2026-04-23"><day>23</day><month>04</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Gainullin R.H., Gainullin R.H., Tsvetkova E.M., Safin R.R.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Гайнуллин Р.Х., Гайнуллин Р.Х., Цветкова Е.М., Сафин Р.Р.</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Gainullin R.H., Gainullin R.H., Tsvetkova E.M., Safin R.R.</copyright-holder><copyright-holder xml:lang="ru">Гайнуллин Р.Х., Гайнуллин Р.Х., Цветкова Е.М., Сафин Р.Р.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.eco-vector.com/2542-1468/article/view/706667">https://journals.eco-vector.com/2542-1468/article/view/706667</self-uri><abstract xml:lang="en"><p>The article provides a brief overview of methods for determining the wood density, which according to the classification are divided into direct and indirect. A mathematically justified author's method for determining the wood density, taking into account the laws of physics, is proposed, which is a kind of water displacement method. Experimental studies have been conducted on nine types of wood, which have shown the efficiency and applicability of the method. The data obtained by the stereometric method were compared (the error value was less than 3 %). The conditions for selecting a load in the form of a ball for research are determined in such a way that incomplete immersion of the sample occurs while ensuring vertical position in a liquid medium. It is recommended to use the proposed method to determine the density of wood in the field conditions.</p></abstract><trans-abstract xml:lang="ru"><p>Приведен краткий обзор методов определения плотности древесины, которые согласно классификации подразделяются на прямые и косвенные. Предложен математически обоснованный авторский метод определения плотности древесины, с учетом законов физики, являющийся разновидностью метода вытеснения воды. Проведены экспериментальные исследования на девяти породах древесины, показавшие работоспособность и применимость метода. Выполнено сравнение данных, полученных стереометрическим методом (значение погрешности составило менее 3 %). Определены условия подбора груза в виде шарика для исследований таким образом, чтобы происходило неполное погружение образца с одновременным обеспечением вертикального положения в среде жидкости. Рекомендуется использование предложенного метода для определения плотности древесины в «полевых» условиях.</p></trans-abstract><kwd-group xml:lang="en"><kwd>wood density</kwd><kwd>methods for determining wood density</kwd><kwd>express method for determining wood density</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>плотность древесины</kwd><kwd>методы определения плотности древесины</kwd><kwd>экспресс-метод определения плотности древесины</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Poluboiarinov О.I. Plotnost’ drevesiny [Wood density]. Moscow: Lesnaya promyshlennost’ [Forest industry], 1976, 160 p.</mixed-citation><mixed-citation xml:lang="ru">Полубояринов О.И. Плотность древесины. М.: Лесная пром-сть, 1976. 160 с.</mixed-citation></citation-alternatives></ref><ref id="B2"><label>2.</label><citation-alternatives><mixed-citation xml:lang="en">Fedorkov A.L. 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