{"id":4320,"date":"2025-06-12T13:23:15","date_gmt":"2025-06-12T13:23:15","guid":{"rendered":"https:\/\/normalab.com\/normes\/astm-d4629\/"},"modified":"2025-06-12T13:33:47","modified_gmt":"2025-06-12T13:33:47","slug":"astm-d4629","status":"publish","type":"normes","link":"https:\/\/normalab.com\/en\/standards\/astm\/astm-d4629\/","title":{"rendered":"ASTM D4629"},"content":{"rendered":"<p>This test method covers the determination of the trace total nitrogen naturally found in liquid hydrocarbons boiling in the range from approximately 50\u2009\u00b0C to 400\u2009\u00b0C, with viscosities between approximately 0.2\u2009cSt and 10\u2009cSt (mm2\/s) at room temperature. It is applicable to naphthas, distillates, and oils containing total nitrogen.<a class=\"partenaire\" href=\"https:\/\/normalab.com\/partenaires\/#trace-elemental\">Trace Elemental Instruments<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Standard Test Method for Trace Nitrogen in Liquid Hydrocarbons by Syringe\/Inlet Oxidative Combustion and Chemiluminescence Detection<\/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-4320","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 D4629 - 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-d4629\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ASTM D4629 - 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