{"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\/fi\/standard\/astm-d3420\/","title":{"rendered":"ASTM D3420"},"content":{"rendered":"<h2 class=\"wp-block-heading\">ASTM D3420:n ja sen merkityksen ymm\u00e4rt\u00e4minen<\/h2>\n\n\n\n<p>ASTM D3420 on laajalti tunnustettu standardi, jota k\u00e4ytet\u00e4\u00e4n m\u00e4\u00e4ritett\u00e4ess\u00e4 <em data-start=\"507\" data-end=\"561\">muovikalvomateriaalien heilurin iskunkest\u00e4vyys<\/em>. Se simuloi todellisia iskuolosuhteita kalvon sitkeyden arvioimiseksi erityisesti pakkaus-, l\u00e4\u00e4ke- ja kulutustavarasovelluksissa. T\u00e4ss\u00e4 oppaassa selitet\u00e4\u00e4n, miten testi tehd\u00e4\u00e4n k\u00e4ytt\u00e4en <strong data-start=\"760\" data-end=\"791\">kalvon heiluri-iskutestauslaite<\/strong>, kuten <strong data-start=\"805\" data-end=\"838\">Cell Instruments Malli <a href=\"https:\/\/www.packqc.com\/fi\/product-category\/pendulum-impact-tester\/\">PIT-01<\/a><\/strong>, ja tarjoaa tietoa <strong data-start=\"871\" data-end=\"894\">Spencerin iskukoe<\/strong>, menettelyt, laskelmat ja raportointimenetelm\u00e4t.<\/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 heiluri iskunkest\u00e4vyysmittari muovikalvoille Levyt iskunkest\u00e4vyysmittari\" 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>N\u00e4m\u00e4 testimenetelm\u00e4t ovat ratkaisevan t\u00e4rkeit\u00e4 muovikalvojen sitkeyden ja laadun arvioinnissa, ja niit\u00e4 k\u00e4ytet\u00e4\u00e4n laajalti eri teollisuudenaloilla, kuten pakkaus- ja elintarviketurvallisuussovelluksissa.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Muovikalvon heiluri-iskunkest\u00e4vyys: Testin yleiskatsaus<\/h2>\n\n\n\n<p>T\u00e4ll\u00e4 menetelm\u00e4ll\u00e4 mitataan <strong data-start=\"1643\" data-end=\"1665\">energia (jouleina)<\/strong> joka tarvitaan, jotta puolipallonmuotoinen heilurip\u00e4\u00e4 repii py\u00f6reiden puristimien v\u00e4liss\u00e4 olevan kalvokoekappaleen. ASTM D3420 sis\u00e4lt\u00e4\u00e4 kaksi menettely\u00e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong data-start=\"1805\" data-end=\"1821\">Menettely A:<\/strong> K\u00e4ytt\u00e4\u00e4 60 mm:n aukkoa ja halkaisijaltaan 25,4 mm:n iskup\u00e4\u00e4t\u00e4.<\/li>\n\n\n\n<li><strong data-start=\"1884\" data-end=\"1922\">Menettely B (Spencerin iskukoe):<\/strong> K\u00e4ytt\u00e4\u00e4 89 mm:n aukkoa ja halkaisijaltaan 19 mm:n iskup\u00e4\u00e4t\u00e4.<\/li>\n<\/ul>\n\n\n\n<p>Molemmissa menettelyiss\u00e4 k\u00e4ytet\u00e4\u00e4n kalibroitua <strong data-start=\"2016\" data-end=\"2047\">kalvon heiluri-iskutestauslaite<\/strong> iskun aikana siirtyv\u00e4n energian mittaamiseksi.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Film Pendulum Impact Tester -asennus ja tekniset tiedot<\/h2>\n\n\n\n<p>ASTM D3420 -testin suorittamiseksi tehokkaasti on k\u00e4ytett\u00e4v\u00e4 sertifioitua heiluri-iskutesteri\u00e4, joka t\u00e4ytt\u00e4\u00e4 standardin laitevaatimukset. Cell Instruments' <strong data-start=\"2308\" data-end=\"2324\">Malli <a href=\"https:\/\/www.packqc.com\/fi\/product-category\/pendulum-impact-tester\/\">PIT-01<\/a><\/strong> on ihanteellinen valinta ammattilaislaboratorioihin, sill\u00e4 se tarjoaa:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Useita energia-aluevaihtoehtoja (0,5-5,0 J)<\/li>\n\n\n\n<li>Analogiset tai digitaaliset lukemat<\/li>\n\n\n\n<li>O-rengaspuristinj\u00e4rjestelm\u00e4 est\u00e4\u00e4 liukumisen<\/li>\n\n\n\n<li>S\u00e4\u00e4dett\u00e4v\u00e4t heiluripainot eri kalvotyyppej\u00e4 varten<\/li>\n<\/ul>\n\n\n\n<p>Optimaalisen tarkkuuden saavuttamiseksi:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Varmistetaan laitteiden asianmukainen tasaus.<\/li>\n\n\n\n<li>Nollaa mittakello tai digitaalinen asteikko ennen jokaista testi\u00e4.<\/li>\n\n\n\n<li>Tarkista kalibrointi <a href=\"https:\/\/store.astm.org\/d3420-21.html\" target=\"_blank\" rel=\"noopener nofollow\">ASTM D1922<\/a> tai valmistajan ohjeita.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Testitulosten raportointi<\/h2>\n\n\n\n<p>Kertomuksen tulisi sis\u00e4lt\u00e4\u00e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>N\u00e4ytteen tunnistaminen ja testausolosuhteet<\/li>\n\n\n\n<li>K\u00e4ytetty menettely (A tai B)<\/li>\n\n\n\n<li>Testattujen n\u00e4ytteiden lukum\u00e4\u00e4r\u00e4<\/li>\n\n\n\n<li><strong data-start=\"3672\" data-end=\"3701\">Keskim\u00e4\u00e4r\u00e4inen iskuenergia (J)<\/strong><\/li>\n\n\n\n<li>N\u00e4ytteen keskim\u00e4\u00e4r\u00e4inen paksuus<\/li>\n\n\n\n<li><strong data-start=\"3733\" data-end=\"3769\">Keskihajonta (tarvittaessa)<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Ymp\u00e4rist\u00f6tietojen kirjaaminen, kuten <strong data-start=\"3805\" data-end=\"3833\">l\u00e4mp\u00f6tila ja kosteus<\/strong> on ratkaisevan t\u00e4rke\u00e4\u00e4 toistettavuuden kannalta.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Spencerin iskutestin suorittaminen<\/h2>\n\n\n\n<p>The <strong data-start=\"2790\" data-end=\"2813\">Spencerin iskukoe<\/strong> (Menettely B) k\u00e4ytet\u00e4\u00e4n yleisesti paksumpiin tai kest\u00e4v\u00e4mpiin kalvoihin. T\u00e4ss\u00e4 on lyhyt vaiheittainen ohje:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong data-start=\"2913\" data-end=\"2936\">Kunnon\u00e4ytteet<\/strong> 23 \u00b1 2 \u00b0C:seen ja 50 \u00b1 10% RH:\u00e4\u00e4n.<\/li>\n\n\n\n<li><strong data-start=\"2969\" data-end=\"2990\">Mittaa paksuus<\/strong> tarkasti mikrometrill\u00e4 (\u00b10,00025 mm).<\/li>\n\n\n\n<li><strong data-start=\"3038\" data-end=\"3055\">Leikkaa ja kiinnit\u00e4<\/strong> n\u00e4ytteet k\u00e4ytt\u00e4m\u00e4ll\u00e4 89 mm:n aukkoa ja O-rengaspuristinta.<\/li>\n\n\n\n<li><strong data-start=\"3111\" data-end=\"3132\">Nosta ja vapauta<\/strong> heiluri lukitusasennosta.<\/li>\n\n\n\n<li><strong data-start=\"3176\" data-end=\"3198\">Tarkkaile ja kirjaa<\/strong> kalvon repe\u00e4miseen kulunut energia.<\/li>\n\n\n\n<li><strong data-start=\"3243\" data-end=\"3281\">Toista v\u00e4hint\u00e4\u00e4n viiden n\u00e4ytteen osalta<\/strong> ja laske keskiarvo.<\/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 heiluri iskunkest\u00e4vyysmittari muovikalvoille Levyt iskunkest\u00e4vyysmittari\" 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\">Iskuenergialaskelma menettely\u00e4 B varten:<\/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\">Miss\u00e4:<\/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 jouleina<\/li>\n\n\n\n<li><em style=\"font-size: 16px;\" data-start=\"3420\" data-end=\"3423\">R<\/em> = asteikon lukema (0-100)<\/li>\n\n\n\n<li><em style=\"font-size: 16px;\" data-start=\"3452\" data-end=\"3455\">C<\/em> = testerin kapasiteetti (esim. 0,17, 0,34, 0,67 J jne.).<\/li>\n<\/ul>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">Parhaan heiluri-iskutesterin valitseminen<\/h2>\n\n\n\n<p>Tarkka testaus <strong data-start=\"4573\" data-end=\"4619\">muovikalvon heilurin iskunkest\u00e4vyys<\/strong> ASTM D3420:n k\u00e4ytt\u00f6 on ratkaisevan t\u00e4rke\u00e4\u00e4 materiaalin suorituskyvyn varmistamiseksi vaativissa ymp\u00e4rist\u00f6iss\u00e4. Noudattamalla kuvattuja menettelyj\u00e4 ja k\u00e4ytt\u00e4m\u00e4ll\u00e4 luotettavaa laitetta, kuten <strong data-start=\"4788\" data-end=\"4815\"><a href=\"https:\/\/www.packqc.com\/fi\/\">Soluinstrumentit<\/a> PIT-01<\/strong>, laboratoriot ja valmistajat voivat saavuttaa <strong data-start=\"4852\" data-end=\"4908\">toistettavat, tarkat ja standardien mukaiset tulokset.<\/strong>. T\u00e4m\u00e4 auttaa varmistamaan tuoteturvallisuuden, parantamaan pakkausten luotettavuutta ja noudattamaan kansainv\u00e4lisi\u00e4 standardeja.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\n\t\t\t\tOta yhteytt\u00e4 Hanki ASTM D3420 -testausratkaisu\t\t\t\t<\/h2>\n\n\n\n<p>ASTM D3420 Pendulum I -standardin ymm\u00e4rt\u00e4minen ja soveltaminen<strong data-start=\"4289\" data-end=\"4316\">mpact Testimenetelm\u00e4<\/strong> varmistaa muovikalvojen luotettavuuden ja turvallisuuden todellisissa sovelluksissa. Vankkojen testimenetelmien avulla ammattilaiset voivat arvioida kalvon iskunkest\u00e4vyytt\u00e4 luotettavasti, mik\u00e4 auttaa parantamaan tuotteita ja yll\u00e4pit\u00e4m\u00e4\u00e4n laadukkaita standardeja.<\/p>\n\n\n\n<p>Lis\u00e4tietoja <strong data-start=\"4646\" data-end=\"4673\">Cell Instruments PIT-01<\/strong> tai jos haluat keskustella r\u00e4\u00e4t\u00e4l\u00f6idyist\u00e4 testaustarpeista, ota yhteytt\u00e4 tekniseen tiimiimme jo t\u00e4n\u00e4\u00e4n!<\/p>","protected":false},"excerpt":{"rendered":"<p>ASTM D3420:n ja sen merkityksen ymm\u00e4rt\u00e4minen ASTM D3420 on laajalti tunnustettu standardi, jota k\u00e4ytet\u00e4\u00e4n muovikalvomateriaalien heilurin iskunkest\u00e4vyyden m\u00e4\u00e4ritt\u00e4miseen. Siin\u00e4 simuloidaan todellisia iskuolosuhteita kalvon sitkeyden arvioimiseksi erityisesti pakkaus-, l\u00e4\u00e4ke- ja kulutustavarasovelluksissa. T\u00e4ss\u00e4 oppaassa selitet\u00e4\u00e4n, miten testi tehd\u00e4\u00e4n kalvon heilurilla [...].<\/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\/fi\/wp-json\/wp\/v2\/standard\/9837","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.packqc.com\/fi\/wp-json\/wp\/v2\/standard"}],"about":[{"href":"https:\/\/www.packqc.com\/fi\/wp-json\/wp\/v2\/types\/standard"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.packqc.com\/fi\/wp-json\/wp\/v2\/media\/10016"}],"wp:attachment":[{"href":"https:\/\/www.packqc.com\/fi\/wp-json\/wp\/v2\/media?parent=9837"}],"wp:term":[{"taxonomy":"standard-category","embeddable":true,"href":"https:\/\/www.packqc.com\/fi\/wp-json\/wp\/v2\/standard-category?post=9837"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}