{"id":2971,"date":"2025-04-24T07:47:01","date_gmt":"2025-04-24T07:47:01","guid":{"rendered":"https:\/\/normalab.misari.fr\/normes\/iso-4263\/"},"modified":"2025-05-02T09:43:28","modified_gmt":"2025-05-02T09:43:28","slug":"iso-4263","status":"publish","type":"normes","link":"https:\/\/normalab.com\/en\/standards\/iso\/iso-4263\/","title":{"rendered":"ISO 4263"},"content":{"rendered":"<p>This test method covers the evaluation of the oxidation stability of inhibited steam-turbine oils in the presence of oxygen, water, and copper and iron metals at an elevated temperature. This test method is also used for testing other oils, such as hydraulic oils and circulating oils having a specific gravity less than that of water and containing rust and oxidation inhibitors. TOST Classic, test container, mushroom condenser with vertical barbed fitting, oxygen delivery tube<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Evaluation of oxidation stability of inhibited turbine oils<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":3233,"menu_order":0,"template":"","meta":{"_acf_changed":false},"groupe-norme":[103],"class_list":["post-2971","normes","type-normes","status-publish","hentry","groupe-norme-iso-en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>ISO 4263 - 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\/iso\/iso-4263\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ISO 4263 - 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