{"id":134084,"date":"2026-10-21T11:40:26","date_gmt":"2026-10-21T18:40:26","guid":{"rendered":"https:\/\/coirubber.com\/?page_id=134084"},"modified":"2026-10-22T11:37:50","modified_gmt":"2026-10-22T18:37:50","slug":"astm-d792-density-specific-gravity","status":"publish","type":"page","link":"https:\/\/coirubber.com\/de\/astm\/astm-d792-density-specific-gravity\/","title":{"rendered":"ASTM D792 Density &amp; Specific Gravity"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"134084\" class=\"elementor elementor-134084\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b0ff9f7 e-flex e-con-boxed lakit-col-width-auto-no e-container e-root-container elementor-top-section e-con e-parent\" data-id=\"b0ff9f7\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-47a77fb elementor-widget elementor-widget-text-editor\" data-id=\"47a77fb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div class=\"coi-video-page\" style=\"max-width:1200px;margin:0 auto;padding:10px 20px 30px;\"><h3><strong>ASTM D792 &#8211; Density and Specific Gravity of Plastics by Displacement<\/strong><\/h3>\nASTM D792 is a standard test method for determining the density and specific gravity of plastics by displacement. A specimen is weighed in air, then weighed again while immersed in water. The buoyant force gives the specimen&#8217;s volume, and density is its mass divided by that volume. Specific gravity compares that density to the density of water. The result is a quick, repeatable way to check whether two plastic parts or batches are really the same material.\n<h4>Watch: ASTM D792: Is It the Same Plastic? (Density &amp; Specific Gravity)<\/h4><div style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;max-width:100%;margin:16px 0;\"><iframe src=\"https:\/\/www.youtube.com\/embed\/smRywiicrII\" title=\"ASTM D792: Is It the Same Plastic? (Density &#038; Specific Gravity) - COi Rubber\" loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" allow=\"accelerometer; encrypted-media; gyroscope; picture-in-picture\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<h4>Watch the 53-second version: ASTM D792 in a Short<\/h4><div style=\"max-width:360px;margin:16px auto;\"><div style=\"position:relative;padding-bottom:177.78%;height:0;overflow:hidden;\"><iframe src=\"https:\/\/www.youtube.com\/embed\/HHqYBlWcA_4\" title=\"ASTM D792 density and specific gravity (Short) - COi Rubber\" loading=\"lazy\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" allow=\"accelerometer; encrypted-media; gyroscope; picture-in-picture\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div><\/div>\n<p><em>Die veranschaulichenden Bilder in diesem Video sind KI-generiert.<\/em><\/p>\n<h4><strong>How to read a density or specific gravity result<\/strong><\/h4>\n<ul>\n<li>Density is mass per unit volume. Specific gravity compares that density to water, so for plastics tested by water displacement the two numbers are nearly equal.<\/li>\n<li>Same look does not mean same material. Two parts that look identical can have different densities, which points to a different resin, filler content, or formulation.<\/li>\n<li>Results are only comparable under the same test conditions. Check the method, immersion fluid, and temperature before comparing two values.<\/li>\n<li>Density and specific gravity are identity and quality-control checks. They do not predict final part strength or service life on their own. When requesting the test, specify ASTM D792 and note the part&#8217;s intended material and application.<\/li>\n<\/ul>\n<p>Sehen Sie sich kurze Erkl\u00e4rvideos zu Gummi- und Kunststoffpr\u00fcfungen in unserer <a href=\"https:\/\/coirubber.com\/de\/video-library\/\">Video-Bibliothek f\u00fcr Gummipr\u00fcfungen<\/a>. For plastic strength, see <a href=\"https:\/\/coirubber.com\/de\/astm\/astm-d638-plastic-tensile-properties\/\">ASTM D638 tensile properties<\/a>.<\/p>\n<p>Ben\u00f6tigen Sie ma\u00dfgefertigte Gummi- oder Kunststoffteile? Senden Sie Ihre Zeichnung und Anforderungen an <a href=\"mailto:estimator@coirubber.com\">estimator@coirubber.com<\/a> oder <a href=\"https:\/\/coirubber.com\/de\/contact-us\/\">unser Team kontaktieren<\/a>. COi Rubber ist ein Unternehmen in US-amerikanischem Besitz und Betrieb, und unser Fertigungsstandort in Wuhu, China, ist nach IATF 16949 zertifiziert.<\/p>\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"VideoObject\",\"name\":\"ASTM D792: Is It the Same Plastic? (Density & Specific Gravity)\",\"description\":\"What ASTM D792 density and specific-gravity testing tells you when comparing plastic parts or batches, and what to specify when requesting it.\",\"thumbnailUrl\":\"https:\/\/i.ytimg.com\/vi\/smRywiicrII\/hqdefault.jpg\",\"uploadDate\":\"2026-10-21\",\"embedUrl\":\"https:\/\/www.youtube.com\/embed\/smRywiicrII\",\"contentUrl\":\"https:\/\/www.youtube.com\/watch?v=smRywiicrII\",\"publisher\":{\"@type\":\"Organization\",\"name\":\"COi Rubber Products\",\"url\":\"https:\/\/coirubber.com\/\"}}<\/script><\/div>\n<style id=\"coi-consistency-134084\">body.page-id-134084 main h1,.coi-video-page h2,.coi-video-page h3,.coi-video-page h4{color:#003366!important;font-family:Montserrat,sans-serif!important}.coi-video-page a:not(.button):not(.elementor-button){color:#CC3366!important}.coi-video-page a:not(.button):not(.elementor-button):hover{color:#333366!important}<\/style>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>ASTM D792 &#8211; Density and Specific Gravity of Plastics by Displacement ASTM D792 is a standard test method for determining the density and specific gravity of plastics by displacement. A specimen is weighed in air, then weighed again while immersed in water. The buoyant force gives the specimen&#8217;s volume, and density is its mass divided [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":64088,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_exactmetrics_skip_tracking":false,"footnotes":""},"class_list":["post-134084","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>ASTM D792 Density &amp; Specific Gravity - COi Rubber Products<\/title>\n<meta name=\"description\" content=\"Coi Rubber Products - Customer Rubber and Plastics Manufacturer specializing in Injection Molding, Compression, Transfers, Extrusions, Bonding, and more.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/coirubber.com\/de\/astm\/astm-d792-density-specific-gravity\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ASTM D792 Density &amp; 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