{"id":4891,"date":"2026-08-13T14:21:09","date_gmt":"2026-08-13T06:21:09","guid":{"rendered":"https:\/\/www.pgeneral.com\/?p=4891"},"modified":"2026-08-13T14:21:09","modified_gmt":"2026-08-13T06:21:09","slug":"%e3%80%8adetermination-of-chromium-in-surface-coatings-of-wheel-hubs-flame-atomic-absorption-spectrometry%e3%80%8bcontent-summary","status":"publish","type":"post","link":"https:\/\/www.pgeneral.com\/fr\/applications\/%e3%80%8adetermination-of-chromium-in-surface-coatings-of-wheel-hubs-flame-atomic-absorption-spectrometry%e3%80%8bcontent-summary","title":{"rendered":"\u00ab\u00a0D\u00e9termination du chrome dans les rev\u00eatements de surface des moyeux de roues (spectrom\u00e9trie d'absorption atomique de flamme)\u00a0\u00bb\u00a0: Sommaire"},"content":{"rendered":"<h1>1 Aper\u00e7u de la m\u00e9thode<\/h1>\n<p>Le moyeu de la roue est soigneusement nettoy\u00e9 \u00e0 l'eau ultrapure puis s\u00e9ch\u00e9 \u00e0 l'air. Un grattoir est utilis\u00e9 pour \u00e9liminer la couche de finition, la couche interm\u00e9diaire et l'appr\u00eat pr\u00e9sents en surface. Apr\u00e8s digestion par micro-ondes, la concentration en chrome est d\u00e9termin\u00e9e par spectrom\u00e9trie d'absorption atomique de flamme \u00e0 une longueur d'onde de 357,9 nm.<\/p>\n<h1>2. Champ d'application<\/h1>\n<p>Dosage du chrome dans les rev\u00eatements de surface des moyeux de roues<\/p>\n<h1>3 Norme de r\u00e9f\u00e9rence<\/h1>\n<p>CEI 62312<\/p>\n<h1>4 Instruments et r\u00e9actifs<\/h1>\n<h2>4.1 Instruments et \u00e9quipements<\/h2>\n<h3>4.1.1 Instruments analytiques<\/h3>\n<p>feuille<\/p>\n<table>\n<thead>\n<tr>\n<th>- Non, non.<\/th>\n<th>Nom<\/th>\n<th>Quantit\u00e9<\/th>\n<th>Exigences techniques<\/th>\n<th>Accessoires<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>Spectrophotom\u00e8tre d'absorption atomique de flamme<\/td>\n<td>1 ensemble<\/td>\n<td>\u2014<\/td>\n<td>Lampe \u00e0 cathode creuse au chrome<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>Bouteille de gaz ac\u00e9tyl\u00e8ne<\/td>\n<td>1 cylindre<\/td>\n<td>Puret\u00e9 \u2265 99,99%<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>Compresseur d'air<\/td>\n<td>1 unit\u00e9<\/td>\n<td>Pression nominale d'\u00e9chappement: 0,3 MPa<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<\/tbody>\n<\/table>","protected":false},"excerpt":{"rendered":"<p>1 Method Overview The wheel hub is thoroughly cleaned with ultrapure water and air-dried. A scraper is used to remove the topcoat, intermediate coating and primer on the surface. After microwave digestion, the concentration of chromium is determined by flame atomic absorption spectrometry at a wavelength of 357.9 nm. 2 Scope of Application Determination of [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":4892,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[36],"tags":[],"class_list":["post-4891","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-applications"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/posts\/4891","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/comments?post=4891"}],"version-history":[{"count":1,"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/posts\/4891\/revisions"}],"predecessor-version":[{"id":4893,"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/posts\/4891\/revisions\/4893"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/media\/4892"}],"wp:attachment":[{"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/media?parent=4891"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/categories?post=4891"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pgeneral.com\/fr\/wp-json\/wp\/v2\/tags?post=4891"}],"curies":[{"name":"WP","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}