{"id":46060,"date":"2026-04-13T05:20:00","date_gmt":"2026-04-13T05:20:00","guid":{"rendered":"https:\/\/www.cnshining.com\/?p=46060"},"modified":"2026-04-10T08:47:22","modified_gmt":"2026-04-10T08:47:22","slug":"selection-des-materiaux-pour-joints-daerosol-fea-641","status":"publish","type":"post","link":"https:\/\/www.cnshining.com\/fr\/selection-des-materiaux-pour-joints-daerosol-fea-641-html","title":{"rendered":"FEA 641\u00a0: Joints d\u2019a\u00e9rosol \u2013 Essai de s\u00e9lection des mat\u00e9riaux"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Aper\u00e7u standard<\/h2>\n\n\n\n<p>La norme FEA 641 est une norme industrielle publi\u00e9e par l&#039;&nbsp;<strong>F\u00e9d\u00e9ration europ\u00e9enne des a\u00e9rosols (FEA)<\/strong>&nbsp;qui d\u00e9finit un&nbsp;<strong>test de gonflement en laboratoire<\/strong>&nbsp;utilis\u00e9 pour le&nbsp;<strong>s\u00e9lection des mat\u00e9riaux de joints de valve d&#039;a\u00e9rosol<\/strong>.<\/p>\n\n\n\n<p>La norme se concentre exclusivement sur&nbsp;<strong>comportement dimensionnel des mat\u00e9riaux de joints<\/strong>&nbsp;lorsqu&#039;il est expos\u00e9 \u00e0 une formulation d&#039;a\u00e9rosol compl\u00e8te, sachant que l&#039;interaction chimique entre le joint et le produit est l&#039;une des causes profondes les plus fr\u00e9quentes des fuites de vannes.<\/p>\n\n\n\n<style>\n  body {\n    margin: auto;\n    font-family: Arial, Helvetica, sans-serif;\n    line-height: 1.7;\n    color: #222;\n  }\n  figure {\n    margin: 34px 0;\n    text-align: center;\n  }\n  figcaption {\n    font-size: 14px;\n    color: #555;\n    margin-top: 6px;\n  }\n  .note {\n    background: #e8f2ff;\n    padding: 14px;\n    border-left: 4px solid #0b5ed7;\n    margin: 24px 0;\n    border-radius:10px;\n    font-style: italic;\n  }\nbuttons {\n  background-color: #0b5ed7; \n  color: #ffffff; \n}\n<\/style>\n<div class=\"note\">\n<strong>Point cl\u00e9 :<\/strong> Un joint qui assure une \u00e9tanch\u00e9it\u00e9 parfaite \u00e0 sec peut se d\u00e9t\u00e9riorer compl\u00e8tement apr\u00e8s exposition au produit.\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Pourquoi les tests de gonflement des joints sont essentiels<\/h2>\n\n\n\n<p>Les joints de soupape sont des mat\u00e9riaux \u00e0 base de polym\u00e8res contenant des charges, des plastifiants et des syst\u00e8mes de vulcanisation. Au contact d&#039;une formulation en a\u00e9rosol, ils peuvent\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Gonflement d\u00fb \u00e0 l&#039;absorption de solvants ou de propulseurs<\/li>\n\n\n\n<li>Retrait d\u00fb \u00e0 l&#039;extraction des plastifiants<\/li>\n\n\n\n<li>Subissent des modifications irr\u00e9versibles de leurs propri\u00e9t\u00e9s m\u00e9caniques<\/li>\n<\/ul>\n\n\n\n<p>Ces changements concernent\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Force d&#039;\u00e9tanch\u00e9it\u00e9<\/li>\n\n\n\n<li>Comportement d&#039;actionnement des vannes<\/li>\n\n\n\n<li>performance en mati\u00e8re de fuites \u00e0 long terme<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Port\u00e9e de l&#039;analyse par \u00e9l\u00e9ments finis 641<\/h2>\n\n\n\n<p>FEA 641 aborde :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>proc\u00e9dure de test de gonflement<\/li>\n\n\n\n<li>\u00c9valuation du comportement \u00e0 l&#039;\u00e9quilibre<\/li>\n\n\n\n<li>Classification et nomenclature des mat\u00e9riaux<\/li>\n<\/ul>\n\n\n\n<p>C&#039;est le cas&nbsp;<strong>pas<\/strong>&nbsp;\u00e9valuer:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>D\u00e9gradation chimique du produit<\/li>\n\n\n\n<li>stabilit\u00e9 du parfum<\/li>\n\n\n\n<li>changement de couleur ou pr\u00e9cipitations<\/li>\n<\/ul>\n\n\n\n<div class=\"note\">\n<strong>Important:<\/strong> La compatibilit\u00e9 des produits doit toujours \u00eatre \u00e9valu\u00e9e en parall\u00e8le avec le gonflement des joints.\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Essai de gonflement \u2013 Interpr\u00e9tation technique<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Principe de mesure<\/h3>\n\n\n\n<p>Le gonflement du joint est \u00e9valu\u00e9 en comparant l&#039;\u00e9paisseur initiale du joint avec son \u00e9paisseur apr\u00e8s exposition \u00e0 la formulation en a\u00e9rosol.<\/p>\n\n\n\n<p>Les mesures sont effectu\u00e9es \u00e0 l&#039;aide de\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Manom\u00e8tre \u00e0 cadran d&#039;environ&nbsp;<strong>charge de ressort constante de 50 g<\/strong><\/li>\n\n\n\n<li>Mesure de la surface de l&#039;enclume d&#039;environ&nbsp;<strong>50 mm\u00b2<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Mesure initiale (D1)<\/h3>\n\n\n\n<p>L&#039;\u00e9paisseur initiale (D1) est mesur\u00e9e avec une pr\u00e9cision de \u00b10,01 mm, soit\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sur trois joints individuels et additionn\u00e9s, ou<\/li>\n\n\n\n<li>Sur un ensemble de trois joints empil\u00e9s<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Exposition \u00e0 la formulation en a\u00e9rosol<\/h3>\n\n\n\n<p>Trois joints du m\u00eame mat\u00e9riau sont plac\u00e9s dans un r\u00e9cipient appropri\u00e9 rempli de la formulation compl\u00e8te d&#039;a\u00e9rosol et pressuris\u00e9 avec le propulseur appropri\u00e9.<\/p>\n\n\n\n<p>Intervalles d&#039;exposition recommand\u00e9s\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>3 jours<\/li>\n\n\n\n<li>7 jours<\/li>\n\n\n\n<li>2 semaines<\/li>\n\n\n\n<li>4 semaines<\/li>\n\n\n\n<li>8 semaines<\/li>\n<\/ul>\n\n\n\n<p>Les \u00e9chantillons sont conserv\u00e9s \u00e0 temp\u00e9rature ambiante.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Mesure finale (D2)<\/h3>\n\n\n\n<p>Apr\u00e8s chaque intervalle\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Le conteneur est ouvert en toute s\u00e9curit\u00e9<\/li>\n\n\n\n<li>Les joints sont retir\u00e9s et mesur\u00e9s.&nbsp;<strong>en moins de 5 secondes<\/strong><\/li>\n\n\n\n<li>Aucun s\u00e9chage ni essuyage n&#039;est autoris\u00e9.<\/li>\n<\/ul>\n\n\n\n<div class=\"note\">\n<strong>R\u00e8gle essentielle :<\/strong> Une mesure retard\u00e9e permet l&#039;\u00e9vaporation du solvant et fausse les r\u00e9sultats.\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Calcul du pourcentage de gonflement<\/h2>\n\n\n\n<p>Le pourcentage de gonflement est calcul\u00e9 comme suit\u00a0:<\/p>\n\n\n\n<p><strong>(3D2 \u2212 3D1) \u00d7 100 \/ 3D1<\/strong><\/p>\n\n\n\n<p>O\u00f9:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>D1 = \u00e9paisseur du joint d&#039;origine<\/li>\n\n\n\n<li>D2 = \u00e9paisseur apr\u00e8s exposition<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Comportement \u00e0 l&#039;\u00e9quilibre et s\u00e9lection des mat\u00e9riaux<\/h2>\n\n\n\n<p>Un mat\u00e9riau de joint appropri\u00e9 doit atteindre une certaine valeur.&nbsp;<strong>\u00e9quilibre stable<\/strong>.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Courbe X :<\/strong>&nbsp;\u00c9quilibre stable \u2013 acceptable<\/li>\n\n\n\n<li><strong>Courbe Y :<\/strong>&nbsp;Gonflement suivi d&#039;un r\u00e9tr\u00e9cissement \u2013 risque \u00e9lev\u00e9<\/li>\n\n\n\n<li><strong>Courbe Z :<\/strong>&nbsp;Houle continue \u2013 inacceptable<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1000\" height=\"562\" src=\"https:\/\/www.cnshining.com\/wp-content\/uploads\/2026\/04\/FEA-641-Gasket-Swell-Equilibrium-Behavior-Curves.webp\" alt=\"Graphique d&#039;\u00e9quilibre de gonflement du joint FEA 641 montrant trois comportements distincts du mat\u00e9riau : \u00e9quilibre stable (X), gonflement puis r\u00e9tr\u00e9cissement (Y) et gonflement continu (Z) sur une p\u00e9riode de jours.\" class=\"wp-image-46693\" title=\"\" srcset=\"https:\/\/www.cnshining.com\/wp-content\/uploads\/2026\/04\/FEA-641-Gasket-Swell-Equilibrium-Behavior-Curves.webp 1000w, https:\/\/www.cnshining.com\/wp-content\/uploads\/2026\/04\/FEA-641-Gasket-Swell-Equilibrium-Behavior-Curves-18x10.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Figure 1 : Comparaison des comportements typiques de gonflement des joints d&#039;a\u00e9rosol.<\/figcaption><\/figure>\n\n\n\n<div class=\"note\">\n<strong>Perspectives d&#039;ing\u00e9nierie\u00a0:<\/strong> Un gonflement continu indique une d\u00e9gradation du polym\u00e8re et une d\u00e9faillance in\u00e9vitable de la valve.\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Strat\u00e9gie d&#039;\u00e9valuation recommand\u00e9e<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mesurer le gonflement apr\u00e8s 3 ou 7 jours<\/li>\n\n\n\n<li>Rev\u00e9rifier apr\u00e8s 2 semaines<\/li>\n\n\n\n<li>Si stable, l&#039;\u00e9quilibre est confirm\u00e9.<\/li>\n\n\n\n<li>Sinon, poursuivez \u00e0 4 et 8 semaines.<\/li>\n<\/ul>\n\n\n\n<p>Si l&#039;\u00e9quilibre n&#039;est pas atteint apr\u00e8s 8 semaines, la combinaison formulation\/joint doit \u00eatre rejet\u00e9e.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Nomenclature des mat\u00e9riaux (ISO 1629)<\/h2>\n\n\n\n<div class=\"table-wrap\">\n<table>\n  <thead>\n    <tr>\n      <th>Classe<\/th>\n      <th>D\u00e9nomination<\/th>\n      <th>Nom commun<\/th>\n      <th>Formule chimique (simplifi\u00e9e)<\/th>\n    <\/tr>\n  <\/thead>\n  <tbody>\n    <tr><td>BR<\/td><td>caoutchouc butadi\u00e8ne<\/td><td>Polybutadi\u00e8ne<\/td><td>(\u2013CH\u2082\u2013CH=CH\u2013CH\u2082\u2013)n<\/td><\/tr>\n    <tr><td>NBR<\/td><td>Caoutchouc nitrile-butadi\u00e8ne<\/td><td>Nitrile<\/td><td>(\u2013CH\u2082\u2013CH(CN)\u2013)n<\/td><\/tr>\n    <tr><td>SBR<\/td><td>Caoutchouc styr\u00e8ne-butadi\u00e8ne<\/td><td>Styr\u00e8ne-butadi\u00e8ne<\/td><td>(\u2013CH\u2082\u2013CH(Ph)\u2013)n<\/td><\/tr>\n    <tr><td>EPDM<\/td><td>caoutchouc \u00e9thyl\u00e8ne-propyl\u00e8ne-di\u00e8ne<\/td><td>EPDM<\/td><td>(\u2013CH\u2082\u2013CH\u2082\u2013CH\u2082\u2013)n<\/td><\/tr>\n    <tr><td>IR<\/td><td>caoutchouc isopr\u00e8ne<\/td><td>Poly-isopr\u00e8ne<\/td><td>(\u2013CH\u2082\u2013C(CH\u2083)=CH\u2013CH\u2082\u2013)n<\/td><\/tr>\n    <tr><td>IIR<\/td><td>caoutchouc isobutyl\u00e8ne-isopr\u00e8ne<\/td><td>Butyle<\/td><td>(\u2013CH\u2082\u2013C(CH\u2083)\u2082\u2013)n<\/td><\/tr>\n    <tr><td>CR<\/td><td>caoutchouc chloropr\u00e8ne<\/td><td>Polychloropr\u00e8ne<\/td><td>(\u2013CH\u2082\u2013CCl=CH\u2013CH\u2082\u2013)n<\/td><\/tr>\n    <tr><td>CIIR<\/td><td>Chloro-isobutyl\u00e8ne-isopr\u00e8ne<\/td><td>Chlorobutyl<\/td><td>(\u2013CH\u2082\u2013C(CH\u2083)\u2082\u2013)n<\/td><\/tr>\n    <tr><td>FPM<\/td><td>Caoutchouc fluorocarbon\u00e9<\/td><td>FKM \/ Fluoro<\/td><td>(\u2013CF\u2082\u2013CF\u2082\u2013)n<\/td><\/tr>\n    <tr><td>PU<\/td><td>caoutchouc polyester<\/td><td>polyur\u00e9thane<\/td><td>\u2013NH\u2013CO\u2013O\u2013<\/td><\/tr>\n  <\/tbody>\n<\/table>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Relation avec d&#039;autres normes<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><a href=\"https:\/\/www.cnshining.com\/fr\/mesure-du-parallelisme-fea-405-html\/\" target=\"_blank\" rel=\"noreferrer noopener\">FEA 405<\/a><\/strong>&nbsp;\u2013 Tests d&#039;\u00e9tanch\u00e9it\u00e9 des vannes<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-group download-standard-box is-vertical is-layout-flex wp-container-core-group-is-layout-fe9cc265 wp-block-group-is-layout-flex\">\n<h6 class=\"wp-block-heading\"><strong>T\u00e9l\u00e9charger le PDF standard<\/strong><\/h6>\n\n\n\n<p><strong>FEA 641<\/strong> Cette norme d\u00e9crit une m\u00e9thode d&#039;essai pour la s\u00e9lection de mat\u00e9riaux adapt\u00e9s aux joints de vannes d&#039;a\u00e9rosol. Elle d\u00e9taille les proc\u00e9dures de mesure du gonflement des joints expos\u00e9s \u00e0 des formulations d&#039;a\u00e9rosol compl\u00e8tes, permettant ainsi d&#039;\u00e9valuer la compatibilit\u00e9 des mat\u00e9riaux et de garantir une \u00e9tanch\u00e9it\u00e9 optimale des vannes.<\/p>\n\n\n\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-6c531013 wp-block-group-is-layout-flex\">\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-fe9cc265 wp-block-group-is-layout-flex\">\n<div class=\"wp-block-buttons is-layout-flex wp-container-core-buttons-is-layout-168ce233 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-fill\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/\/www.cnshining.com\/download\/FEA641.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">T\u00e9l\u00e9charger FEA 641 (PDF)<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-6c531013 wp-block-group-is-layout-flex\">\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-outline is-style-outline--1\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.cnshining.com\/fr\/fabricant-de-bombes-aerosol-en-aluminium\/\" target=\"_blank\" rel=\"noreferrer noopener\">Parcourez les emballages a\u00e9rosols<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">FAQ \u2013 Ing\u00e9nierie et Achats<\/h2>\n\n\n\n<div data-wp-context=\"{ &quot;autoclose&quot;: false, &quot;accordionItems&quot;: [] }\" data-wp-interactive=\"core\/accordion\" role=\"group\" class=\"wp-block-accordion is-layout-flow wp-block-accordion-is-layout-flow\">\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-2&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-2-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-2\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">1. Le cours FEA 641 est-il obligatoire ?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-2\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-2-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p>Non, mais elle est largement utilis\u00e9e comme m\u00e9thode de r\u00e9f\u00e9rence pour la s\u00e9lection de mat\u00e9riaux de joints compatibles lors du d\u00e9veloppement.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-3&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-3-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-3\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">2. La houle est-elle toujours mauvaise ?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-3\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-3-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p>Non. Un gonflement contr\u00f4l\u00e9 peut am\u00e9liorer l&#039;\u00e9tanch\u00e9it\u00e9, mais seulement si l&#039;\u00e9quilibre est stable et reste dans les limites de conception de la vanne.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-4&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-4-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-4\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">3. Pourquoi la mesure doit-elle \u00eatre effectu\u00e9e en moins de 5 secondes ?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-4\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-4-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p>L&#039;\u00e9vaporation du solvant commence imm\u00e9diatement. Tout retard entra\u00eene une sous-estimation des valeurs de gonflement.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-5&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-5-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-5\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">4. Ce test peut-il pr\u00e9dire les fuites \u00e0 long terme\u00a0?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-5\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-5-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p>C&#039;est un indicateur fiable, mais il doit \u00eatre combin\u00e9 \u00e0 des tests fonctionnels d&#039;\u00e9tanch\u00e9it\u00e9 des soupapes.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-6&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-6-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-6\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">5. Les limites de gonflement des joints doivent-elles \u00eatre convenues avec les fournisseurs de vannes\u00a0?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-6\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-6-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p>Oui. Diff\u00e9rents mod\u00e8les de vannes tol\u00e8rent diff\u00e9rentes plages de gonflement.<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\t\t<div data-elementor-type=\"container\" data-elementor-id=\"45061\" class=\"elementor elementor-45061\" data-elementor-post-type=\"elementor_library\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c370fa5 e-flex e-con-boxed e-con e-parent\" data-id=\"c370fa5\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-0c8b7c0 e-con-full e-flex e-con e-child\" data-id=\"0c8b7c0\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f5ac074 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"f5ac074\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0836143 e-con-full e-flex e-con e-child\" data-id=\"0836143\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-dba680a e-con-full e-flex e-con e-child\" data-id=\"dba680a\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-87d0a39 elementor-widget elementor-widget-image\" data-id=\"87d0a39\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.cnshining.com\/wp-content\/uploads\/elementor\/thumbs\/CEO-Pony-rl92dlnb7ws10luyx873mcxf7ywgvs77xv5lzan74g.webp\" title=\"PDG Pony\" alt=\"PDG Pony\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5930664 e-con-full e-flex e-con e-child\" data-id=\"5930664\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-f907e4b e-con-full e-flex e-con e-child\" data-id=\"f907e4b\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4639852 elementor-widget elementor-widget-heading\" data-id=\"4639852\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h6 class=\"elementor-heading-title elementor-size-default\">Pony Ma | PDG<\/h6>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-96f59b6 elementor-widget elementor-widget-text-editor\" data-id=\"96f59b6\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p data-path-to-node=\"7\">Avec <b data-path-to-node=\"7\" data-index-in-node=\"5\">25 ans<\/b> Forts de notre exp\u00e9rience dans le domaine de l&#039;emballage m\u00e9tallique, nous nous engageons \u00e0 fournir <b data-path-to-node=\"7\" data-index-in-node=\"106\">solutions d&#039;emballage durables<\/b> gr\u00e2ce \u00e0 des technologies innovantes en mati\u00e8re d&#039;aluminium. Je partage r\u00e9guli\u00e8rement des informations sur l&#039;innovation des mat\u00e9riaux et les strat\u00e9gies d&#039;approvisionnement mondiales pour aider les marques \u00e0 rester comp\u00e9titives.<\/p><p data-path-to-node=\"8\">Bienvenue, connectez-vous avec moi sur <a href=\"http:\/\/www.linkedin.com\/in\/bottle\" target=\"_blank\" rel=\"noopener nofollow\"><b data-path-to-node=\"8\" data-index-in-node=\"30\">LinkedIn<\/b><\/a> pour discuter des derni\u00e8res tendances du secteur.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\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>","protected":false},"excerpt":{"rendered":"<p>Guide pratique d&#039;ing\u00e9nierie pour FEA 641 expliquant les essais de gonflement des joints, l&#039;\u00e9valuation de l&#039;\u00e9quilibre et la s\u00e9lection des mat\u00e9riaux pour la fiabilit\u00e9 de l&#039;\u00e9tanch\u00e9it\u00e9 des vannes d&#039;a\u00e9rosol.<\/p>","protected":false},"author":1,"featured_media":47211,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[78],"tags":[],"class_list":["post-46060","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-aerosol-packaging"],"_links":{"self":[{"href":"https:\/\/www.cnshining.com\/fr\/wp-json\/wp\/v2\/posts\/46060","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cnshining.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cnshining.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cnshining.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cnshining.com\/fr\/wp-json\/wp\/v2\/comments?post=46060"}],"version-history":[{"count":2,"href":"https:\/\/www.cnshining.com\/fr\/wp-json\/wp\/v2\/posts\/46060\/revisions"}],"predecessor-version":[{"id":46694,"href":"https:\/\/www.cnshining.com\/fr\/wp-json\/wp\/v2\/posts\/46060\/revisions\/46694"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cnshining.com\/fr\/wp-json\/wp\/v2\/media\/47211"}],"wp:attachment":[{"href":"https:\/\/www.cnshining.com\/fr\/wp-json\/wp\/v2\/media?parent=46060"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cnshining.com\/fr\/wp-json\/wp\/v2\/categories?post=46060"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cnshining.com\/fr\/wp-json\/wp\/v2\/tags?post=46060"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}