{"id":599720,"date":"2024-11-05T22:02:29","date_gmt":"2024-11-05T22:02:29","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/iso-177442004\/"},"modified":"2024-11-05T22:02:29","modified_gmt":"2024-11-05T22:02:29","slug":"iso-177442004","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/iso\/iso-177442004\/","title":{"rendered":"ISO 17744:2004"},"content":{"rendered":"<p>L&#039;ISO 17744:2004 d\u00e9crit les modes op\u00e9ratoires pour d\u00e9terminer le volume sp\u00e9cifique des plastiques en fonction de la temp\u00e9rature et de la pression \u00e0 l&#039;\u00e9tat fondu et \u00e0 l&#039;\u00e9tat solide.<\/p>\n<p>La norme sp\u00e9cifie l&#039;utilisation d&#039;un appareil \u00e0 piston dans lequel l&#039;\u00e9chantillon d&#039;essai, maintenu dans une cellule de mesure, est mis sous pression au moyen du piston. Des mesurages dans des conditions de pression constante ou de temp\u00e9rature constante peuvent \u00eatre effectu\u00e9s. Dans le mode \u00e0 pression constante, les vitesses maximales admissibles de chauffage et de refroidissement sont limit\u00e9es \u00e0 5 \u00b0C\/min.<\/p>\n<p>En utilisant ces modes op\u00e9ratoires, il est possible d&#039;obtenir:<\/p>\n<ul>\n<li>des diagrammes <i>pvT<\/i> qui repr\u00e9sentent les relations entre la pression, le volume sp\u00e9cifique et la temp\u00e9rature d&#039;un mat\u00e9riau donn\u00e9;<\/li>\n<li>le coefficient de compressibilit\u00e9 et le coefficient de dilatation thermique volum\u00e9trique;<\/li>\n<li>la transition de premier ordre et la transition vitreuse en fonction de la temp\u00e9rature et de la pression.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p><b>Plastiques \u2014 D\u00e9termination du volume sp\u00e9cifique en fonction de la temp\u00e9rature et de la pression (diagramme pvT) \u2014 M\u00e9thode utilisant un appareil \u00e0 piston<\/b><\/p>\n<table style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/iso\/\"><b>ISO<\/b><\/a><\/td>\n<td>2004-11<\/td>\n<td>26<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":599732,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1177,2634],"product_tag":[],"class_list":{"0":"post-599720","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-83-080-01","7":"product_cat-iso","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/599720","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/599732"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=599720"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=599720"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=599720"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}