{"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\/sl\/standard\/astm-d3420\/","title":{"rendered":"ASTM D3420"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Razumevanje standarda ASTM D3420 in njegovega pomena<\/h2>\n\n\n\n<p>ASTM D3420 je splo\u0161no priznan standard, ki se uporablja za dolo\u010danje <em data-start=\"507\" data-end=\"561\">odpornost plasti\u010dnih folij na udarce z nihalom<\/em>. Simulira dejanske pogoje udarcev, da se oceni \u017eilavost folije, zlasti za uporabo v embala\u017ei, medicini in potro\u0161ni\u0161kem blagu. V tem priro\u010dniku je pojasnjeno, kako opraviti preskus z uporabo <strong data-start=\"760\" data-end=\"791\">udarni tester z nihalom za filme<\/strong>, kot je npr. <strong data-start=\"805\" data-end=\"838\">Cell Instruments Model <a href=\"https:\/\/www.packqc.com\/sl\/product-category\/pendulum-impact-tester\/\">PIT-01<\/a><\/strong>in omogo\u010da vpogled v <strong data-start=\"871\" data-end=\"894\">Spencerjev udarni test<\/strong>, postopke, izra\u010dune in metode poro\u010danja.<\/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 Udarni tester z nihalom za plasti\u010dne folije Udarni tester za plasti\u010dne folije\" 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>Te preskusne metode so klju\u010dnega pomena pri ocenjevanju \u017eilavosti in kakovosti plasti\u010dnih folij ter se pogosto uporabljajo v razli\u010dnih panogah, vklju\u010dno z embala\u017eo in varnostjo hrane.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Odpornost plasti\u010dne folije na udarce z nihalom: Pregled preskusov<\/h2>\n\n\n\n<p>Ta metoda meri <strong data-start=\"1643\" data-end=\"1665\">energija (v joulih)<\/strong> ki je potrebna, da polkroglasta glava nihala pretrga vzorec folije med okroglimi objemkami. ASTM D3420 vklju\u010duje dva postopka:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong data-start=\"1805\" data-end=\"1821\">Postopek A:<\/strong> Uporablja 60-milimetrsko odprtino in udarno glavo s premerom 25,4 mm.<\/li>\n\n\n\n<li><strong data-start=\"1884\" data-end=\"1922\">Postopek B (Spencerjev udarni preskus):<\/strong> Uporablja 89-milimetrsko odprtino in udarno glavo s premerom 19 mm.<\/li>\n<\/ul>\n\n\n\n<p>Pri obeh postopkih se uporablja kalibriran <strong data-start=\"2016\" data-end=\"2047\">udarni tester z nihalom za filme<\/strong> za merjenje energije, prenesene med udarcem.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Nastavitve in specifikacije testerja udarcev filmskega nihala<\/h2>\n\n\n\n<p>Za u\u010dinkovito izvajanje standarda ASTM D3420 uporabljajte certificiran tester za udarce z nihalom, ki je skladen z zahtevami standarda za naprave. Cell Instruments' <strong data-start=\"2308\" data-end=\"2324\">Model <a href=\"https:\/\/www.packqc.com\/sl\/product-category\/pendulum-impact-tester\/\">PIT-01<\/a><\/strong> je idealna izbira za profesionalne laboratorije, saj ponuja:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ve\u010d mo\u017enosti energijskega razpona (od 0,5 do 5,0 J)<\/li>\n\n\n\n<li>Analogni ali digitalni od\u010ditki<\/li>\n\n\n\n<li>Sistem vpenjanja z O-obro\u010dem za prepre\u010devanje zdrsa<\/li>\n\n\n\n<li>Nastavljive ute\u017ei nihala za razli\u010dne vrste filmov<\/li>\n<\/ul>\n\n\n\n<p>Za optimalno natan\u010dnost:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Poskrbite za pravilno izravnavo opreme.<\/li>\n\n\n\n<li>Pred vsakim preskusom izni\u010dite \u0161tevil\u010dnico ali digitalno skalo.<\/li>\n\n\n\n<li>Preverite kalibracijo v skladu z <a href=\"https:\/\/store.astm.org\/d3420-21.html\" target=\"_blank\" rel=\"noopener nofollow\">ASTM D1922<\/a> ali navodila proizvajalca.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Poro\u010danje o rezultatih preskusov<\/h2>\n\n\n\n<p>Va\u0161e poro\u010dilo mora vsebovati:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Identifikacija vzorca in preskusni pogoji<\/li>\n\n\n\n<li>Uporabljeni postopek (A ali B)<\/li>\n\n\n\n<li>\u0160tevilo testiranih vzorcev<\/li>\n\n\n\n<li><strong data-start=\"3672\" data-end=\"3701\">Povpre\u010dna energija udarca (J)<\/strong><\/li>\n\n\n\n<li>Povpre\u010dna debelina vzorca<\/li>\n\n\n\n<li><strong data-start=\"3733\" data-end=\"3769\">Standardni odklon (po potrebi)<\/strong><\/li>\n<\/ul>\n\n\n\n<p>bele\u017eenje okoljskih podatkov, kot so <strong data-start=\"3805\" data-end=\"3833\">temperatura in vla\u017enost<\/strong> je klju\u010dnega pomena za ponovljivost.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Izvedba Spencerjevega udarnega preskusa<\/h2>\n\n\n\n<p>The <strong data-start=\"2790\" data-end=\"2813\">Spencerjev udarni test<\/strong> (postopek B) se obi\u010dajno uporablja za debelej\u0161e ali trajnej\u0161e filme. Tukaj je kratek opis po korakih:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong data-start=\"2913\" data-end=\"2936\">Vzorci stanja<\/strong> na 23 \u00b1 2 \u00b0C in 50 \u00b1 10% RH.<\/li>\n\n\n\n<li><strong data-start=\"2969\" data-end=\"2990\">Merjenje debeline<\/strong> natan\u010dno z mikrometrom (\u00b10,00025 mm).<\/li>\n\n\n\n<li><strong data-start=\"3038\" data-end=\"3055\">Izre\u017eite in pritrdite<\/strong> vzorcev z 89-milimetrsko odprtino in objemko z O-obro\u010dem.<\/li>\n\n\n\n<li><strong data-start=\"3111\" data-end=\"3132\">Dvignite in sprostite<\/strong> nihalo iz zasko\u010denega polo\u017eaja.<\/li>\n\n\n\n<li><strong data-start=\"3176\" data-end=\"3198\">Opazujte in bele\u017eite<\/strong> energija, ki se absorbira za pretrganje folije.<\/li>\n\n\n\n<li><strong data-start=\"3243\" data-end=\"3281\">Ponovite za vsaj pet primerkov<\/strong> in izra\u010dunajte povpre\u010dje.<\/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 Udarni tester z nihalom za plasti\u010dne folije Udarni tester za plasti\u010dne folije\" 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\">Izra\u010dun udarne energije za postopek 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\">Kje:<\/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> = energija v joulih<\/li>\n\n\n\n<li><em style=\"font-size: 16px;\" data-start=\"3420\" data-end=\"3423\">R<\/em> = od\u010ditavanje lestvice (0-100)<\/li>\n\n\n\n<li><em style=\"font-size: 16px;\" data-start=\"3452\" data-end=\"3455\">C<\/em> = zmogljivost testerja (npr. 0,17, 0,34, 0,67 J itd.)<\/li>\n<\/ul>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">Izbira najbolj\u0161ega udarnega testerja z nihalom<\/h2>\n\n\n\n<p>Natan\u010dno testiranje <strong data-start=\"4573\" data-end=\"4619\">odpornost plasti\u010dne folije na udarce z nihalom<\/strong> uporaba standarda ASTM D3420 je klju\u010dnega pomena za zagotavljanje u\u010dinkovitosti materialov v zahtevnih okoljih. Z upo\u0161tevanjem opisanih postopkov in uporabo zanesljivega instrumenta, kot je <strong data-start=\"4788\" data-end=\"4815\"><a href=\"https:\/\/www.packqc.com\/sl\/\">Celi\u010dni instrumenti<\/a> PIT-01<\/strong>, laboratoriji in proizvajalci lahko dose\u017eejo <strong data-start=\"4852\" data-end=\"4908\">ponovljivi, natan\u010dni in s standardi skladni rezultati.<\/strong>. S tem lahko zagotovite varnost izdelkov, pove\u010date zanesljivost embala\u017ee in ohranite skladnost z mednarodnimi standardi.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\n\t\t\t\tKontaktirajte nas Pridobite re\u0161itev za testiranje ASTM D3420\t\t\t\t<\/h2>\n\n\n\n<p>Razumevanje in uporaba standarda ASTM D3420 nihalo I<strong data-start=\"4289\" data-end=\"4316\">Vpliv Preskusna metoda<\/strong> zagotavlja zanesljivost in varnost plasti\u010dnih folij v realnih aplikacijah. Z zanesljivimi tehnikami preskusnih postopkov lahko strokovnjaki z gotovostjo ocenijo odpornost folije proti udarcem, kar pripomore k izbolj\u0161anju izdelkov in ohranjanju visokokakovostnih standardov.<\/p>\n\n\n\n<p>Za ve\u010d informacij o <strong data-start=\"4646\" data-end=\"4673\">Cell Instruments PIT-01<\/strong> ali za pogovor o prilagojenih potrebah po testiranju se \u0161e danes obrnite na na\u0161o tehni\u010dno ekipo!<\/p>","protected":false},"excerpt":{"rendered":"<p>Razumevanje standarda ASTM D3420 in njegov pomen ASTM D3420 je splo\u0161no priznan standard, ki se uporablja za dolo\u010danje odpornosti plasti\u010dnih folij na udarce z nihalom. Simulira dejanske pogoje udarcev, da se oceni \u017eilavost folije, zlasti za uporabo v embala\u017ei, medicini in potro\u0161ni\u0161kem blagu. V tem priro\u010dniku je pojasnjeno, kako opraviti preskus z uporabo nihala za folijo, ki [...]<\/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\/sl\/wp-json\/wp\/v2\/standard\/9837","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.packqc.com\/sl\/wp-json\/wp\/v2\/standard"}],"about":[{"href":"https:\/\/www.packqc.com\/sl\/wp-json\/wp\/v2\/types\/standard"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.packqc.com\/sl\/wp-json\/wp\/v2\/media\/10016"}],"wp:attachment":[{"href":"https:\/\/www.packqc.com\/sl\/wp-json\/wp\/v2\/media?parent=9837"}],"wp:term":[{"taxonomy":"standard-category","embeddable":true,"href":"https:\/\/www.packqc.com\/sl\/wp-json\/wp\/v2\/standard-category?post=9837"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}