{"id":4335,"date":"2025-06-12T13:23:19","date_gmt":"2025-06-12T13:23:19","guid":{"rendered":"https:\/\/normalab.com\/normes\/astm-d5481\/"},"modified":"2025-06-12T13:33:52","modified_gmt":"2025-06-12T13:33:52","slug":"astm-d5481","status":"publish","type":"normes","link":"https:\/\/normalab.com\/en\/standards\/astm\/astm-d5481\/","title":{"rendered":"ASTM D5481"},"content":{"rendered":"<p>This test method covers the laboratory determination of high-temperature high-shear (HTHS) viscosity of engine oils at a temperature of 150\u2009\u00b0C using a multicell capillary viscometer containing pressure, temperature, and timing instrumentation. Viscosities are determined directly from calibrations that have been established with Newtonian oils with nominal viscosities from 1.4\u2009mPa\u00b7s to 5.0 mPa\u00b7s at 150\u2009\u00b0C. The precision has only been determined for the viscosity range 1.45\u2009mPa\u00b7s and 5.05 mPa\u00b7s at 150 \u00b0C for the materials listed in the precision section.<a class=\"partenaire\" href=\"https:\/\/normalab.com\/partenaires\/#cannon\">Cannon<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Standard Test Method for Measuring Apparent Viscosity at High-Temperature and High-Shear Rate by Multicell Capillary Viscometer<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":3231,"menu_order":0,"template":"","meta":{"_acf_changed":false},"groupe-norme":[105],"class_list":["post-4335","normes","type-normes","status-publish","hentry","groupe-norme-astm-en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>ASTM D5481 - Normalab<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/normalab.com\/en\/standards\/astm\/astm-d5481\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ASTM D5481 - 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