{"id":67406,"date":"2023-11-09T15:50:43","date_gmt":"2023-11-09T13:50:43","guid":{"rendered":"https:\/\/unm.fr\/?p=67406"},"modified":"2023-11-10T14:58:24","modified_gmt":"2023-11-10T12:58:24","slug":"nf-en-iso-4545-1-materiaux-metalliques-essai-de-durete-knoop-partie-1-methode-dessai","status":"publish","type":"post","link":"https:\/\/unm.fr\/en\/standards-of-the-month\/nf-en-iso-4545-1-materiaux-metalliques-essai-de-durete-knoop-partie-1-methode-dessai\/","title":{"rendered":"NF EN ISO 4545-1 Mat\u00e9riaux m\u00e9talliques &#8211; Essai de duret\u00e9 Knoop &#8211; Partie 1 : M\u00e9thode d&#8217;essai"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"67406\" class=\"elementor elementor-67406\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-faa0361 e-flex e-con-boxed e-con e-parent\" data-id=\"faa0361\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0b4330c elementor-widget elementor-widget-text-editor\" data-id=\"0b4330c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>La m\u00e9thode d&#8217;essai Knoop, aussi connue sous le nom de m\u00e9thode d&#8217;essai de microduret\u00e9, est surtout utilis\u00e9e pour des petites pi\u00e8ces ou pour des sections minces.<\/p><p>La norme NF\u00a0EN\u00a0ISO\u00a04545-1 a \u00e9t\u00e9 d\u00e9velopp\u00e9e conjointement par le CEN et l&#8217;ISO, elle sp\u00e9cifie la m\u00e9thode d\u2019essai de duret\u00e9 Knoop pour les mat\u00e9riaux m\u00e9talliques, pour des forces d\u2019essai comprises entre 0,009\u00a0807\u00a0N et 19,613\u00a0N, ainsi que l&#8217;essai de duret\u00e9 Knoop pour la longueur de la grande diagonale \u2265\u00a00,020\u00a0mm.<\/p><p>Elle d\u00e9finit la machine d\u2019essai, l\u2019\u00e9prouvette, le mode op\u00e9ratoire, les incertitudes des r\u00e9sultats, le contenu du rapport d\u2019essai et la v\u00e9rification p\u00e9riodique pour le syst\u00e8me de mesure de la diagonale et du p\u00e9n\u00e9trateur.<\/p><p>Par rapport \u00e0 la version pr\u00e9c\u00e9dente de mars 2018, de nouvelles modifications ont \u00e9t\u00e9 apport\u00e9es \u00e0 savoir :<\/p><ul><li>la r\u00e9vision du domaine d&#8217;application pour inclure les essais sur les rev\u00eatements m\u00e9talliques et autres rev\u00eatements non organiques ;<\/li><li>l&#8217;ajout du paragraphe 7.5 \u00ab Rev\u00eatements m\u00e9talliques et autres rev\u00eatements non organiques \u00bb ;<\/li><li>l&#8217;ajout de l&#8217;Annexe F pour couvrir les exigences sp\u00e9cifiques aux rev\u00eatements.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>La m\u00e9thode d&#8217;essai Knoop, aussi connue sous le nom de m\u00e9thode d&#8217;essai de microduret\u00e9, est surtout utilis\u00e9e pour des petites pi\u00e8ces ou pour des sections minces. La norme NF\u00a0EN\u00a0ISO\u00a04545-1 a \u00e9t\u00e9 d\u00e9velopp\u00e9e conjointement par le CEN et l&#8217;ISO, elle sp\u00e9cifie la m\u00e9thode d\u2019essai de duret\u00e9 Knoop pour les mat\u00e9riaux m\u00e9talliques, pour des forces d\u2019essai comprises [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":67411,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"date-de-webinaire":0,"heure-webinaire":"","duree-webinaire":"","lien-bouton-cta":"","footnotes":""},"categories":[38],"tags":[],"normes-associees":[3161],"thematique":[79],"class_list":["post-67406","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-focus-norme","normes-associees-en-iso-4545-serie","thematique-acier"],"_links":{"self":[{"href":"https:\/\/unm.fr\/en\/wp-json\/wp\/v2\/posts\/67406","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/unm.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/unm.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/unm.fr\/en\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/unm.fr\/en\/wp-json\/wp\/v2\/comments?post=67406"}],"version-history":[{"count":7,"href":"https:\/\/unm.fr\/en\/wp-json\/wp\/v2\/posts\/67406\/revisions"}],"predecessor-version":[{"id":67423,"href":"https:\/\/unm.fr\/en\/wp-json\/wp\/v2\/posts\/67406\/revisions\/67423"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/unm.fr\/en\/wp-json\/wp\/v2\/media\/67411"}],"wp:attachment":[{"href":"https:\/\/unm.fr\/en\/wp-json\/wp\/v2\/media?parent=67406"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/unm.fr\/en\/wp-json\/wp\/v2\/categories?post=67406"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/unm.fr\/en\/wp-json\/wp\/v2\/tags?post=67406"},{"taxonomy":"normes-associees","embeddable":true,"href":"https:\/\/unm.fr\/en\/wp-json\/wp\/v2\/normes-associees?post=67406"},{"taxonomy":"thematique","embeddable":true,"href":"https:\/\/unm.fr\/en\/wp-json\/wp\/v2\/thematique?post=67406"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}