{"id":3211,"date":"2026-06-24T16:13:03","date_gmt":"2026-06-24T14:13:03","guid":{"rendered":"https:\/\/www.technical-center.de\/wiki\/iso-25178-areal-roughness-measurement\/"},"modified":"2026-06-24T16:13:03","modified_gmt":"2026-06-24T14:13:03","slug":"iso-25178-areal-roughness-measurement","status":"publish","type":"encyclopedia","link":"https:\/\/www.technical-center.de\/en\/glossary\/iso-25178-areal-roughness-measurement\/","title":{"rendered":"ISO 25178 &#8211; Areal Roughness Measurement"},"content":{"rendered":"<div class=\"glossar-eintrag\">\n<p><strong>Definition:<\/strong> ISO 25178 is an international series of standards for three-dimensional areal surface measurement. It defines 3D parameters such as Sa, Sz and Ssk. It is based on optical or tactile 3D measuring systems.<\/p>\n<p><strong>Practical relevance:<\/strong> The standard extends profile-based roughness analysis (ISO 4287) with areal parameters. It is relevant for tribological, functional and microstructured surfaces.<\/p>\n<\/div>\n","protected":false},"author":0,"featured_media":0,"template":"","encyclopedia-tag":[],"class_list":["post-3211","encyclopedia","type-encyclopedia","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.technical-center.de\/en\/wp-json\/wp\/v2\/encyclopedia\/3211","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.technical-center.de\/en\/wp-json\/wp\/v2\/encyclopedia"}],"about":[{"href":"https:\/\/www.technical-center.de\/en\/wp-json\/wp\/v2\/types\/encyclopedia"}],"wp:attachment":[{"href":"https:\/\/www.technical-center.de\/en\/wp-json\/wp\/v2\/media?parent=3211"}],"wp:term":[{"taxonomy":"encyclopedia-tag","embeddable":true,"href":"https:\/\/www.technical-center.de\/en\/wp-json\/wp\/v2\/encyclopedia-tag?post=3211"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}