{"id":9837,"date":"2026-02-24T15:11:44","date_gmt":"2026-02-24T07:11:44","guid":{"rendered":"https:\/\/www.packqc.com\/standard\/astm-d3420-2\/"},"modified":"2026-04-16T09:53:06","modified_gmt":"2026-04-16T01:53:06","slug":"astm-d3420","status":"publish","type":"standard","link":"https:\/\/www.packqc.com\/cs\/standard\/astm-d3420\/","title":{"rendered":"ASTM D3420"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Porozum\u011bn\u00ed norm\u011b ASTM D3420 a jej\u00edmu v\u00fdznamu<\/h2>\n\n\n\n<p>ASTM D3420 je v\u0161eobecn\u011b uzn\u00e1van\u00e1 norma pou\u017e\u00edvan\u00e1 ke stanoven\u00ed hodnoty <em data-start=\"507\" data-end=\"561\">odolnost plastov\u00fdch f\u00f3liov\u00fdch materi\u00e1l\u016f proti kyvadlov\u00e9mu n\u00e1razu<\/em>. Simuluje re\u00e1ln\u00e9 n\u00e1razov\u00e9 podm\u00ednky pro posouzen\u00ed hou\u017eevnatosti f\u00f3lie, zejm\u00e9na pro aplikace v obalech, zdravotnictv\u00ed a spot\u0159ebn\u00edm zbo\u017e\u00ed. Tato p\u0159\u00edru\u010dka vysv\u011btluje, jak zkou\u0161ku prov\u00e9st pomoc\u00ed <strong data-start=\"760\" data-end=\"791\">kyvadlov\u00fd n\u00e1razov\u00fd tester f\u00f3lie<\/strong>, jako je nap\u0159. <strong data-start=\"805\" data-end=\"838\">Cell Instruments Model <a href=\"https:\/\/www.packqc.com\/cs\/product-category\/pendulum-impact-tester\/\">PIT-01<\/a><\/strong>a poskytuje vhled do <strong data-start=\"871\" data-end=\"894\">Spencerova n\u00e1razov\u00e1 zkou\u0161ka<\/strong>, postupy, v\u00fdpo\u010dty a metody pod\u00e1v\u00e1n\u00ed zpr\u00e1v.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class=\"ast-oembed-container\" style=\"height: 100%;\"><iframe title=\"ASTM D3420 kyvadlov\u00fd n\u00e1razov\u00fd tester pro plastov\u00e9 f\u00f3lie N\u00e1razov\u00fd tester pro plastov\u00e9 f\u00f3lie\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/vEx4esxMESw?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<\/div><\/figure>\n\n\n\n<p>Tyto zku\u0161ebn\u00ed metody maj\u00ed z\u00e1sadn\u00ed v\u00fdznam pro hodnocen\u00ed hou\u017eevnatosti a kvality plastov\u00fdch f\u00f3li\u00ed a jsou \u0161iroce pou\u017e\u00edv\u00e1ny v r\u016fzn\u00fdch pr\u016fmyslov\u00fdch odv\u011btv\u00edch, v\u010detn\u011b obal\u016f a potravin\u00e1\u0159sk\u00fdch aplikac\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Odolnost plastov\u00e9 f\u00f3lie proti kyvadlov\u00e9mu n\u00e1razu: P\u0159ehled zkou\u0161ek<\/h2>\n\n\n\n<p>Tato metoda m\u011b\u0159\u00ed <strong data-start=\"1643\" data-end=\"1665\">energie (v joulech)<\/strong> pot\u0159ebn\u00e1 k tomu, aby polokulov\u00e1 kyvadlov\u00e1 hlava roztrhla vzorek filmu dr\u017een\u00fd mezi kruhov\u00fdmi svorkami. Norma ASTM D3420 obsahuje dva postupy:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong data-start=\"1805\" data-end=\"1821\">Postup A:<\/strong> Pou\u017e\u00edv\u00e1 60mm clonu a n\u00e1razovou hlavici o pr\u016fm\u011bru 25,4 mm.<\/li>\n\n\n\n<li><strong data-start=\"1884\" data-end=\"1922\">Postup B (Spencerova n\u00e1razov\u00e1 zkou\u0161ka):<\/strong> Pou\u017e\u00edv\u00e1 otvor o pr\u016fm\u011bru 89 mm a n\u00e1razovou hlavu o pr\u016fm\u011bru 19 mm.<\/li>\n<\/ul>\n\n\n\n<p>Oba postupy pou\u017e\u00edvaj\u00ed kalibrovan\u00fd <strong data-start=\"2016\" data-end=\"2047\">kyvadlov\u00fd n\u00e1razov\u00fd tester f\u00f3lie<\/strong> k m\u011b\u0159en\u00ed energie p\u0159enesen\u00e9 p\u0159i n\u00e1razu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Nastaven\u00ed a specifikace n\u00e1razov\u00e9ho testeru filmov\u00e9ho kyvadla<\/h2>\n\n\n\n<p>Chcete-li \u00fa\u010dinn\u011b prov\u00e9st zkou\u0161ku podle normy ASTM D3420, pou\u017eijte certifikovan\u00fd kyvadlov\u00fd n\u00e1razov\u00fd tester, kter\u00fd spl\u0148uje po\u017eadavky na p\u0159\u00edstroj podle t\u00e9to normy. Cell Instruments' <strong data-start=\"2308\" data-end=\"2324\">Model <a href=\"https:\/\/www.packqc.com\/cs\/product-category\/pendulum-impact-tester\/\">PIT-01<\/a><\/strong> je ide\u00e1ln\u00ed volbou pro profesion\u00e1ln\u00ed laborato\u0159e, proto\u017ee nab\u00edz\u00ed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>V\u00edce mo\u017enost\u00ed energetick\u00e9ho rozsahu (0,5 a\u017e 5,0 J)<\/li>\n\n\n\n<li>Analogov\u00e9 nebo digit\u00e1ln\u00ed ode\u010dty<\/li>\n\n\n\n<li>Syst\u00e9m up\u00ednac\u00edch O-krou\u017ek\u016f zabra\u0148uj\u00edc\u00ed prokluzov\u00e1n\u00ed<\/li>\n\n\n\n<li>Nastaviteln\u00e9 kyvadlov\u00e9 z\u00e1va\u017e\u00ed pro r\u016fzn\u00e9 typy film\u016f<\/li>\n<\/ul>\n\n\n\n<p>Pro optim\u00e1ln\u00ed p\u0159esnost:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Zajist\u011bte spr\u00e1vn\u00e9 vyrovn\u00e1n\u00ed za\u0159\u00edzen\u00ed.<\/li>\n\n\n\n<li>P\u0159ed ka\u017ed\u00fdm testem vynulujte \u010d\u00edseln\u00edk nebo digit\u00e1ln\u00ed stupnici.<\/li>\n\n\n\n<li>Ov\u011b\u0159te kalibraci podle <a href=\"https:\/\/store.astm.org\/d3420-21.html\" target=\"_blank\" rel=\"noopener nofollow\">ASTM D1922<\/a> nebo pokyny v\u00fdrobce.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Pod\u00e1v\u00e1n\u00ed zpr\u00e1v o v\u00fdsledc\u00edch test\u016f<\/h2>\n\n\n\n<p>Va\u0161e zpr\u00e1va by m\u011bla obsahovat:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Identifikace vzorku a podm\u00ednky zkou\u0161ky<\/li>\n\n\n\n<li>Pou\u017eit\u00fd postup (A nebo B)<\/li>\n\n\n\n<li>Po\u010det testovan\u00fdch vzork\u016f<\/li>\n\n\n\n<li><strong data-start=\"3672\" data-end=\"3701\">Pr\u016fm\u011brn\u00e1 energie n\u00e1razu (J)<\/strong><\/li>\n\n\n\n<li>Pr\u016fm\u011brn\u00e1 tlou\u0161\u0165ka vzorku<\/li>\n\n\n\n<li><strong data-start=\"3733\" data-end=\"3769\">Sm\u011brodatn\u00e1 odchylka (je-li vy\u017eadov\u00e1na)<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Zaznamen\u00e1v\u00e1n\u00ed \u00fadaj\u016f o \u017eivotn\u00edm prost\u0159ed\u00ed, jako je <strong data-start=\"3805\" data-end=\"3833\">teplota a vlhkost<\/strong> m\u00e1 z\u00e1sadn\u00ed v\u00fdznam pro reprodukovatelnost.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Proveden\u00ed Spencerova n\u00e1razov\u00e9ho testu<\/h2>\n\n\n\n<p>The <strong data-start=\"2790\" data-end=\"2813\">Spencerova n\u00e1razov\u00e1 zkou\u0161ka<\/strong> (postup B) se b\u011b\u017en\u011b pou\u017e\u00edv\u00e1 pro siln\u011bj\u0161\u00ed nebo odoln\u011bj\u0161\u00ed filmy. Zde je stru\u010dn\u00fd postup krok za krokem:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong data-start=\"2913\" data-end=\"2936\">Vzorky stavu<\/strong> na 23 \u00b1 2 \u00b0C a 50 \u00b1 10% relativn\u00ed vlhkosti.<\/li>\n\n\n\n<li><strong data-start=\"2969\" data-end=\"2990\">M\u011b\u0159en\u00ed tlou\u0161\u0165ky<\/strong> p\u0159esn\u011b pomoc\u00ed mikrometru (\u00b10,00025 mm).<\/li>\n\n\n\n<li><strong data-start=\"3038\" data-end=\"3055\">\u0158ez\u00e1n\u00ed a mont\u00e1\u017e<\/strong> vzork\u016f pomoc\u00ed 89mm otvoru a O-krou\u017ekov\u00e9 svorky.<\/li>\n\n\n\n<li><strong data-start=\"3111\" data-end=\"3132\">Zvednut\u00ed a uvoln\u011bn\u00ed<\/strong> kyvadlo ze zaji\u0161t\u011bn\u00e9 polohy.<\/li>\n\n\n\n<li><strong data-start=\"3176\" data-end=\"3198\">Pozorov\u00e1n\u00ed a z\u00e1znam<\/strong> energie absorbovan\u00e1 k protr\u017een\u00ed filmu.<\/li>\n\n\n\n<li><strong data-start=\"3243\" data-end=\"3281\">Opakujte pro nejm\u00e9n\u011b p\u011bt vzork\u016f<\/strong> a vypo\u010d\u00edtejte pr\u016fm\u011br.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class=\"ast-oembed-container\" style=\"height: 100%;\"><iframe title=\"ASTM D3420 kyvadlov\u00fd n\u00e1razov\u00fd tester pro plastov\u00e9 f\u00f3lie N\u00e1razov\u00fd tester pro plastov\u00e9 f\u00f3lie\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/vEx4esxMESw?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<\/div><\/figure>\n\n\n\n<p><strong data-start=\"3310\" data-end=\"3356\">V\u00fdpo\u010det energie n\u00e1razu pro postup B:<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><em data-start=\"3360\" data-end=\"3379\">E = (R \/ 100) \u00d7 C<\/em><br data-start=\"3379\" data-end=\"3382\">Kde:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><em style=\"font-size: 16px;\" data-start=\"3393\" data-end=\"3396\">E<\/em> = energie v joulech<\/li>\n\n\n\n<li><em style=\"font-size: 16px;\" data-start=\"3420\" data-end=\"3423\">R<\/em> = \u00fadaj na stupnici (0-100)<\/li>\n\n\n\n<li><em style=\"font-size: 16px;\" data-start=\"3452\" data-end=\"3455\">C<\/em> = kapacita testeru (nap\u0159. 0,17, 0,34, 0,67 J atd.)<\/li>\n<\/ul>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">V\u00fdb\u011br nejlep\u0161\u00edho kyvadlov\u00e9ho n\u00e1razov\u00e9ho testeru<\/h2>\n\n\n\n<p>P\u0159esn\u00e9 testov\u00e1n\u00ed <strong data-start=\"4573\" data-end=\"4619\">odolnost plastov\u00e9 f\u00f3lie proti kyvadlov\u00e9mu n\u00e1razu<\/strong> pou\u017eit\u00ed normy ASTM D3420 je rozhoduj\u00edc\u00ed pro zaji\u0161t\u011bn\u00ed vlastnost\u00ed materi\u00e1lu v n\u00e1ro\u010dn\u00fdch prost\u0159ed\u00edch. Dodr\u017eov\u00e1n\u00edm popsan\u00fdch postup\u016f a pou\u017e\u00edv\u00e1n\u00edm spolehliv\u00e9ho p\u0159\u00edstroje, jako je nap\u0159. <strong data-start=\"4788\" data-end=\"4815\"><a href=\"https:\/\/www.packqc.com\/cs\/\">Bun\u011b\u010dn\u00e9 n\u00e1stroje<\/a> PIT-01<\/strong>, laborato\u0159e a v\u00fdrobci mohou dos\u00e1hnout <strong data-start=\"4852\" data-end=\"4908\">opakovateln\u00e9, p\u0159esn\u00e9 a standard\u016fm odpov\u00eddaj\u00edc\u00ed v\u00fdsledky.<\/strong>. To pom\u00e1h\u00e1 zajistit bezpe\u010dnost v\u00fdrobk\u016f, zv\u00fd\u0161it spolehlivost balen\u00ed a udr\u017eet soulad s mezin\u00e1rodn\u00edmi normami.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\n\t\t\t\tKontaktujte n\u00e1s Z\u00edskejte \u0159e\u0161en\u00ed pro testov\u00e1n\u00ed ASTM D3420\t\t\t\t<\/h2>\n\n\n\n<p>Porozum\u011bn\u00ed a pou\u017eit\u00ed normy ASTM D3420 Kyvadlo I<strong data-start=\"4289\" data-end=\"4316\">Zku\u0161ebn\u00ed metoda<\/strong> zaji\u0161\u0165uje spolehlivost a bezpe\u010dnost plastov\u00fdch f\u00f3li\u00ed v re\u00e1ln\u00fdch aplikac\u00edch. D\u00edky spolehliv\u00fdm technik\u00e1m zku\u0161ebn\u00edch postup\u016f mohou odborn\u00edci s jistotou vyhodnocovat odolnost f\u00f3li\u00ed proti n\u00e1razu, co\u017e pom\u00e1h\u00e1 zlep\u0161ovat v\u00fdrobky a udr\u017eovat vysoce kvalitn\u00ed standardy.<\/p>\n\n\n\n<p>Dal\u0161\u00ed informace o <strong data-start=\"4646\" data-end=\"4673\">Cell Instruments PIT-01<\/strong> nebo se m\u016f\u017eete obr\u00e1tit na n\u00e1\u0161 technick\u00fd t\u00fdm a prodiskutovat s n\u00edm sv\u00e9 pot\u0159eby v oblasti testov\u00e1n\u00ed na m\u00edru!<\/p>","protected":false},"excerpt":{"rendered":"<p>Understanding ASTM D3420 and Its Importance ASTM D3420 is a widely recognized standard used to determine the pendulum impact resistance of plastic film materials. It simulates real-world impact conditions to assess a film&#8217;s toughness, particularly for applications in packaging, medical, and consumer goods. This guide explains how to conduct the test using a film pendulum [&hellip;]<\/p>","protected":false},"featured_media":10016,"parent":0,"template":"","meta":{"_acf_changed":true,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}}},"standard-category":[611],"class_list":["post-9837","standard","type-standard","status-publish","has-post-thumbnail","hentry","standard-category-astm"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.packqc.com\/cs\/wp-json\/wp\/v2\/standard\/9837","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.packqc.com\/cs\/wp-json\/wp\/v2\/standard"}],"about":[{"href":"https:\/\/www.packqc.com\/cs\/wp-json\/wp\/v2\/types\/standard"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.packqc.com\/cs\/wp-json\/wp\/v2\/media\/10016"}],"wp:attachment":[{"href":"https:\/\/www.packqc.com\/cs\/wp-json\/wp\/v2\/media?parent=9837"}],"wp:term":[{"taxonomy":"standard-category","embeddable":true,"href":"https:\/\/www.packqc.com\/cs\/wp-json\/wp\/v2\/standard-category?post=9837"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}