{"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\/sk\/standard\/astm-d3420\/","title":{"rendered":"ASTM D3420"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Pochopenie normy ASTM D3420 a jej v\u00fdznamu<\/h2>\n\n\n\n<p>ASTM D3420 je v\u0161eobecne uzn\u00e1van\u00e1 norma pou\u017e\u00edvan\u00e1 na stanovenie <em data-start=\"507\" data-end=\"561\">odolnos\u0165 plastov\u00fdch f\u00f3liov\u00fdch materi\u00e1lov proti n\u00e1razu kyvadla<\/em>. Simuluje re\u00e1lne podmienky n\u00e1razu na pos\u00fadenie h\u00fa\u017eevnatosti f\u00f3lie, najm\u00e4 pre aplik\u00e1cie v oblasti balenia, zdravotn\u00edctva a spotrebn\u00e9ho tovaru. V tejto pr\u00edru\u010dke sa vysvet\u013euje, ako vykona\u0165 test pomocou <strong data-start=\"760\" data-end=\"791\">kyvadlov\u00fd n\u00e1razov\u00fd tester f\u00f3lie<\/strong>, ako napr. <strong data-start=\"805\" data-end=\"838\">Model Cell Instruments <a href=\"https:\/\/www.packqc.com\/sk\/product-category\/pendulum-impact-tester\/\">PIT-01<\/a><\/strong>, a poskytuje poh\u013ead na <strong data-start=\"871\" data-end=\"894\">Spencerova n\u00e1razov\u00e1 sk\u00fa\u0161ka<\/strong>, postupy, v\u00fdpo\u010dty a met\u00f3dy pod\u00e1vania spr\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 pre 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>Tieto sk\u00fa\u0161obn\u00e9 met\u00f3dy s\u00fa rozhoduj\u00face pri hodnoten\u00ed h\u00fa\u017eevnatosti a kvality plastov\u00fdch f\u00f3li\u00ed a s\u00fa \u0161iroko pou\u017e\u00edvan\u00e9 v r\u00f4znych priemyseln\u00fdch odvetviach vr\u00e1tane balenia a bezpe\u010dnosti potrav\u00edn.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Odolnos\u0165 plastovej f\u00f3lie proti n\u00e1razu kyvadla: Preh\u013ead testov<\/h2>\n\n\n\n<p>T\u00e1to met\u00f3da meria <strong data-start=\"1643\" data-end=\"1665\">energia (v jouloch)<\/strong> potrebn\u00e1 na to, aby polgu\u013eov\u00e1 kyvadlov\u00e1 hlava roztrhla vzorku filmu dr\u017ean\u00fa medzi 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\u00edva 60 mm clonu a n\u00e1razov\u00fa hlavu s priemerom 25,4 mm.<\/li>\n\n\n\n<li><strong data-start=\"1884\" data-end=\"1922\">Postup B (Spencerova n\u00e1razov\u00e1 sk\u00fa\u0161ka):<\/strong> Pou\u017e\u00edva 89 mm otvor a 19 mm n\u00e1razov\u00fa hlavu.<\/li>\n<\/ul>\n\n\n\n<p>Pri oboch postupoch sa pou\u017e\u00edva kalibrovan\u00fd <strong data-start=\"2016\" data-end=\"2047\">kyvadlov\u00fd n\u00e1razov\u00fd tester f\u00f3lie<\/strong> na meranie energie prenesenej po\u010das n\u00e1razu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Nastavenie a \u0161pecifik\u00e1cie testera n\u00e1razov kyvadla filmu<\/h2>\n\n\n\n<p>Na efekt\u00edvne vykonanie testu ASTM D3420 pou\u017eite certifikovan\u00fd kyvadlov\u00fd n\u00e1razov\u00fd tester, ktor\u00fd sp\u013a\u0148a po\u017eiadavky normy na pr\u00edstroj. Cell Instruments\u2019 <strong data-start=\"2308\" data-end=\"2324\">Model <a href=\"https:\/\/www.packqc.com\/sk\/product-category\/pendulum-impact-tester\/\">PIT-01<\/a><\/strong> je ide\u00e1lnou vo\u013ebou pre profesion\u00e1lne laborat\u00f3ri\u00e1, preto\u017ee pon\u00faka:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Viacero mo\u017enost\u00ed energetick\u00e9ho rozsahu (0,5 a\u017e 5,0 J)<\/li>\n\n\n\n<li>Anal\u00f3gov\u00e9 alebo digit\u00e1lne \u010d\u00edtanie<\/li>\n\n\n\n<li>Syst\u00e9m up\u00ednac\u00edch O-kr\u00fa\u017ekov na zabr\u00e1nenie sk\u013aznutiu<\/li>\n\n\n\n<li>Nastavite\u013en\u00e9 kyvadlov\u00e9 z\u00e1va\u017eia pre r\u00f4zne typy filmov<\/li>\n<\/ul>\n\n\n\n<p>Pre optim\u00e1lnu presnos\u0165:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Zabezpe\u010dte spr\u00e1vne vyrovnanie zariadenia.<\/li>\n\n\n\n<li>Pred ka\u017ed\u00fdm testom vynulujte \u010d\u00edseln\u00edk alebo digit\u00e1lnu stupnicu.<\/li>\n\n\n\n<li>Overenie kalibr\u00e1cie pod\u013ea <a href=\"https:\/\/store.astm.org\/d3420-21.html\" target=\"_blank\" rel=\"noopener nofollow\">ASTM D1922<\/a> alebo pod\u013ea pokynov v\u00fdrobcu.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Pod\u00e1vanie spr\u00e1v o v\u00fdsledkoch testov<\/h2>\n\n\n\n<p>Va\u0161a spr\u00e1va by mala obsahova\u0165:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Identifik\u00e1cia vzorky a podmienky testovania<\/li>\n\n\n\n<li>Pou\u017eit\u00fd postup (A alebo B)<\/li>\n\n\n\n<li>Po\u010det testovan\u00fdch vzoriek<\/li>\n\n\n\n<li><strong data-start=\"3672\" data-end=\"3701\">Priemern\u00e1 energia n\u00e1razu (J)<\/strong><\/li>\n\n\n\n<li>Priemern\u00e1 hr\u00fabka vzorky<\/li>\n\n\n\n<li><strong data-start=\"3733\" data-end=\"3769\">\u0160tandardn\u00e1 odch\u00fdlka (ak sa vy\u017eaduje)<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Zaznamen\u00e1vanie \u00fadajov o \u017eivotnom prostred\u00ed, ako napr\u00edklad <strong data-start=\"3805\" data-end=\"3833\">teplota a vlhkos\u0165<\/strong> je rozhoduj\u00faca pre reprodukovate\u013enos\u0165.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Vykonanie Spencerovho n\u00e1razov\u00e9ho testu<\/h2>\n\n\n\n<p>The <strong data-start=\"2790\" data-end=\"2813\">Spencerova n\u00e1razov\u00e1 sk\u00fa\u0161ka<\/strong> (postup B) sa be\u017ene pou\u017e\u00edva pre hrub\u0161ie alebo odolnej\u0161ie f\u00f3lie. Tu je stru\u010dn\u00fd postup krok za krokom:<\/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% relat\u00edvnej vlhkosti.<\/li>\n\n\n\n<li><strong data-start=\"2969\" data-end=\"2990\">Meranie hr\u00fabky<\/strong> presne pomocou mikrometra (\u00b10,00025 mm).<\/li>\n\n\n\n<li><strong data-start=\"3038\" data-end=\"3055\">Rezanie a mont\u00e1\u017e<\/strong> vzorky pomocou 89 mm otvoru a svorky s O-kr\u00fa\u017ekom.<\/li>\n\n\n\n<li><strong data-start=\"3111\" data-end=\"3132\">Zdvihnutie a uvo\u013enenie<\/strong> kyvadlo zo zaistenej polohy.<\/li>\n\n\n\n<li><strong data-start=\"3176\" data-end=\"3198\">Pozorovanie a zaznamen\u00e1vanie<\/strong> energia absorbovan\u00e1 na pretrhnutie f\u00f3lie.<\/li>\n\n\n\n<li><strong data-start=\"3243\" data-end=\"3281\">Opakujte pre najmenej p\u00e4\u0165 vzoriek<\/strong> a vypo\u010d\u00edtajte priemer.<\/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 pre 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 n\u00e1razovej energie pre 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> = energia v jouloch<\/li>\n\n\n\n<li><em style=\"font-size: 16px;\" data-start=\"3420\" data-end=\"3423\">R<\/em> = od\u010d\u00edtanie stupnice (0-100)<\/li>\n\n\n\n<li><em style=\"font-size: 16px;\" data-start=\"3452\" data-end=\"3455\">C<\/em> = kapacita testera (napr. 0,17, 0,34, 0,67 J at\u010f.)<\/li>\n<\/ul>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">V\u00fdber najlep\u0161ieho kyvadlov\u00e9ho n\u00e1razov\u00e9ho testera<\/h2>\n\n\n\n<p>Presn\u00e9 testovanie <strong data-start=\"4573\" data-end=\"4619\">odolnos\u0165 plastovej f\u00f3lie proti n\u00e1razu kyvadla<\/strong> pou\u017eitie normy ASTM D3420 je rozhoduj\u00face pre zabezpe\u010denie vlastnost\u00ed materi\u00e1lu v n\u00e1ro\u010dn\u00fdch prostrediach. Dodr\u017eiavan\u00edm uveden\u00fdch postupov a pou\u017e\u00edvan\u00edm spo\u013eahliv\u00e9ho pr\u00edstroja, ako je napr. <strong data-start=\"4788\" data-end=\"4815\"><a href=\"https:\/\/www.packqc.com\/sk\/\">Cell Instruments<\/a> PIT-01<\/strong>, laborat\u00f3ri\u00e1 a v\u00fdrobcovia m\u00f4\u017eu dosiahnu\u0165 <strong data-start=\"4852\" data-end=\"4908\">opakovate\u013en\u00e9, presn\u00e9 a \u0161tandardom vyhovuj\u00face v\u00fdsledky<\/strong>. To pom\u00e1ha zabezpe\u010di\u0165 bezpe\u010dnos\u0165 v\u00fdrobkov, zv\u00fd\u0161i\u0165 spo\u013eahlivos\u0165 balenia a zachova\u0165 s\u00falad s medzin\u00e1rodn\u00fdmi normami.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\n\t\t\t\tKontaktujte n\u00e1s Z\u00edskajte rie\u0161enie na testovanie pod\u013ea normy ASTM D3420\t\t\t\t<\/h2>\n\n\n\n<p>Pochopenie a uplat\u0148ovanie normy ASTM D3420 Kyvadlo I<strong data-start=\"4289\" data-end=\"4316\">Testovacia met\u00f3da<\/strong> zabezpe\u010duje spo\u013eahlivos\u0165 a bezpe\u010dnos\u0165 plastov\u00fdch f\u00f3li\u00ed v re\u00e1lnych aplik\u00e1ci\u00e1ch. V\u010faka spo\u013eahliv\u00fdm technik\u00e1m sk\u00fa\u0161obn\u00fdch postupov m\u00f4\u017eu odborn\u00edci s istotou vyhodnoti\u0165 odolnos\u0165 f\u00f3lie vo\u010di n\u00e1razu, \u010do pom\u00e1ha zlep\u0161ova\u0165 v\u00fdrobky a udr\u017eiava\u0165 vysokokvalitn\u00e9 normy.<\/p>\n\n\n\n<p>\u010eal\u0161ie inform\u00e1cie o <strong data-start=\"4646\" data-end=\"4673\">Cell Instruments PIT-01<\/strong> alebo ak chcete diskutova\u0165 o potreb\u00e1ch testovania na mieru, kontaktujte n\u00e1\u0161 technick\u00fd t\u00edm e\u0161te dnes!<\/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\/sk\/wp-json\/wp\/v2\/standard\/9837","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.packqc.com\/sk\/wp-json\/wp\/v2\/standard"}],"about":[{"href":"https:\/\/www.packqc.com\/sk\/wp-json\/wp\/v2\/types\/standard"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.packqc.com\/sk\/wp-json\/wp\/v2\/media\/10016"}],"wp:attachment":[{"href":"https:\/\/www.packqc.com\/sk\/wp-json\/wp\/v2\/media?parent=9837"}],"wp:term":[{"taxonomy":"standard-category","embeddable":true,"href":"https:\/\/www.packqc.com\/sk\/wp-json\/wp\/v2\/standard-category?post=9837"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}