{"id":1352,"date":"2026-06-10T09:33:54","date_gmt":"2026-06-10T09:33:54","guid":{"rendered":"https:\/\/www.packtests.com\/?post_type=standard&#038;p=1352"},"modified":"2026-07-17T03:22:35","modified_gmt":"2026-07-17T03:22:35","slug":"astm-d1709","status":"publish","type":"standard","link":"https:\/\/www.packtests.com\/da\/standard\/astm-d1709\/","title":{"rendered":"ASTM D1709"},"content":{"rendered":"<h2 class=\"wp-block-heading\">M\u00e5ling af filmens slagfasthed ved hj\u00e6lp af ASTM D1709-pr\u00f8vning<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>ASTM D1709<\/strong> er den internationalt anerkendte standard for dart-slagpr\u00f8vning, der anvendes til at bestemme plastfoliers slagfasthed ved hj\u00e6lp af metoden med frit faldende dart. Pr\u00f8vningen m\u00e5ler den v\u00e6gt, som en faldende dart skal have for at for\u00e5rsage brud i 50% af de testede pr\u00f8veemner, hvilket giver et p\u00e5lideligt m\u00e5l for foliens sejhed, punkteringsmodstand og slagholdbarhed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Producenter af fleksibel emballage, landbrugsfolier, industrielle foringer, medicinsk emballage og emballage til forbrugerprodukter benytter sig af ASTM D1709-testen til at vurdere materialers ydeevne under pludselige st\u00f8dbelastninger. Ved at kvantificere slagfastheden kan laboratorier optimere foliestrukturer, sammenligne materialer, kontrollere produktionskonsistensen og sikre produktkvaliteten, inden produktet lanceres p\u00e5 markedet.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Hvad er ASTM D1709?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">ASTM D1709, <em>Standardtestmetoder til bestemmelse af plastfoliens slagfasthed ved hj\u00e6lp af metoden med fritfaldende pil<\/em>, fastl\u00e6gger procedurer for bestemmelse af plastfoliernes slagfasthed ved hj\u00e6lp af en halvkugleformet pil, der kastes ned fra en bestemt h\u00f8jde.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Testresultatet angiver den dartmasse, der statistisk set medf\u00f8rer svigt hos 50% pr\u00f8veemner under kontrollerede testbetingelser.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Standarden omfatter:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Testmetode A<\/strong><\/li>\n\n\n\n<li><strong>Testmetode B<\/strong><\/li>\n\n\n\n<li><strong>Teknik til test af trapper<\/strong><\/li>\n\n\n\n<li><strong>Alternativ teknik til gruppetestning<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Metoden anvendes i vid udstr\u00e6kning til kvalitetskontrol, produktudvikling, sammenligning af materialer og verifikation af specifikationer.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ASTM D1709 \u2013 Pr\u00f8vningsprincip<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Pr\u00f8ven m\u00e5ler den slagenergi, der kr\u00e6ves for at br\u00e6kke en filmpr\u00f8ve.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En halvkugleformet pil affyres fra en bestemt h\u00f8jde og rammer en fastsp\u00e6ndt filmpr\u00f8ve. Afh\u00e6ngigt af, om pr\u00f8ven best\u00e5r eller ikke best\u00e5r, justeres pilens v\u00e6gt i overensstemmelse med den valgte pr\u00f8vningsprocedure.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Efter flere fald beregner systemet den dartmasse, der svarer til en sandsynlighed p\u00e5 50% for, at pr\u00f8ven g\u00e5r i stykker.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Den beregnede v\u00e6rdi fungerer som et kvantitativt m\u00e5l for slagfasthed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ASTM D1709: Testmetode A sammenlignet med metode B<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">Parameter<\/th><th class=\"has-text-align-center\" data-align=\"center\">Metode A<\/th><th class=\"has-text-align-center\" data-align=\"center\">Metode B<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">Dartdiameter<\/td><td class=\"has-text-align-center\" data-align=\"center\">38 mm<\/td><td class=\"has-text-align-center\" data-align=\"center\">50 mm<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Faldh\u00f8jde<\/td><td class=\"has-text-align-center\" data-align=\"center\">660 mm<\/td><td class=\"has-text-align-center\" data-align=\"center\">1520 mm<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Omr\u00e5de for slagfasthed<\/td><td class=\"has-text-align-center\" data-align=\"center\">Ca. 50 g til 6 kg<\/td><td class=\"has-text-align-center\" data-align=\"center\">Ca. 300 g til 6 kg<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Typiske anvendelsesomr\u00e5der<\/td><td class=\"has-text-align-center\" data-align=\"center\">Generelle emballagefolier<\/td><td class=\"has-text-align-center\" data-align=\"center\">Film med st\u00f8rre gennemslagskraft<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Vejledning om v\u00e6gtstigning<\/td><td class=\"has-text-align-center\" data-align=\"center\">Ca. 15% i brudv\u00e6gt<\/td><td class=\"has-text-align-center\" data-align=\"center\">Ca. 5\u201315% i brudv\u00e6gt<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Metode A<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Metode A anvender:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>38 mm halvkugleformet pil<\/li>\n\n\n\n<li>660 mm faldh\u00f8jde<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Denne metode bruges ofte til:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Polyethylenfolier<\/li>\n\n\n\n<li>Emballagefolier<\/li>\n\n\n\n<li>Str\u00e6kfilm<\/li>\n\n\n\n<li>Landbrugsfolier<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Metode B<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Metode B anvender:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>50 mm halvkugleformet pil<\/li>\n\n\n\n<li>1520 mm faldh\u00f8jde<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Denne konfiguration er velegnet til:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Film til tungt brug<\/li>\n\n\n\n<li>Industrielle foringer<\/li>\n\n\n\n<li>Tykkere plastkonstruktioner<\/li>\n\n\n\n<li>Emballagematerialer med h\u00f8j styrke<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">ASTM D1709 \u2013 Pr\u00f8vningsmetode for trapper<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Trappeteknikken er den mest anvendte metode.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Testprocedure<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>V\u00e6lg metode A eller metode B.<\/li>\n\n\n\n<li>M\u00e5l pr\u00f8vens tykkelse.<\/li>\n\n\n\n<li>V\u00e6lg en startv\u00e6gt p\u00e5 pilen, der ligger t\u00e6t p\u00e5 det forventede brudpunkt.<\/li>\n\n\n\n<li>Sp\u00e6nd pr\u00f8ven fast.<\/li>\n\n\n\n<li>Slip pilen.<\/li>\n\n\n\n<li>Registrer best\u00e5et eller ikke best\u00e5et.<\/li>\n\n\n\n<li>Juster dartens v\u00e6gt:\n<ul class=\"wp-block-list\">\n<li>Manglende succes \u2192 v\u00e6gttab<\/li>\n\n\n\n<li>Ingen fejl \u2192 \u00f8g v\u00e6gten<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Forts\u00e6t med at teste, indtil det kr\u00e6vede antal fejl og ikke-fejl er opn\u00e5et.<\/li>\n\n\n\n<li>Beregn fejlv\u00e6gten for 50%.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Fordele<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Effektiv testning<\/li>\n\n\n\n<li>Reduceret forbrug af pr\u00f8vemateriale<\/li>\n\n\n\n<li>H\u00f8j statistisk p\u00e5lidelighed<\/li>\n\n\n\n<li>Fremragende repeterbarhed<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Alternativ metode til faldpr\u00f8vning af dartpile<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Den alternative fremgangsm\u00e5de vurderer pr\u00f8verne i grupper p\u00e5 ti.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Oversigt over proceduren<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Der testes ti pr\u00f8veeksemplarer ved \u00e9n dartv\u00e6gt.<\/li>\n\n\n\n<li>Fejlprocenten beregnes.<\/li>\n\n\n\n<li>Dartens v\u00e6gt justeres til de efterf\u00f8lgende grupper.<\/li>\n\n\n\n<li>Testningen forts\u00e6tter, indtil der er indsamlet tilstr\u00e6kkelige datapunkter mellem 0% og 100%-fejlen.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Denne metode anvendes ofte, n\u00e5r laboratorier har brug for en mere omfattende statistisk vurdering af materialets ydeevne.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Krav til testpr\u00f8ver<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">For p\u00e5lidelig testning i henhold til ASTM D1709:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Forberedelse af pr\u00f8ver<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Filmen skal v\u00e6re fri for rynker og folder.<\/li>\n\n\n\n<li>Overfladekontaminering b\u00f8r undg\u00e5s.<\/li>\n\n\n\n<li>Pr\u00f8verne skal v\u00e6re repr\u00e6sentative for det faktiske produktionsmateriale.<\/li>\n\n\n\n<li>Tykkelsen skal m\u00e5les og registreres.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Anbefalet pr\u00f8vest\u00f8rrelse<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>St\u00f8rre end 150 mm \u00d7 150 mm<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Korrekt forberedelse af pr\u00f8verne forbedrer testens repeterbarhed og reproducerbarhed betydeligt.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Hvorfor udf\u00f8re en dart-slagpr\u00f8ve?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Plastfolier uds\u00e6ttes ofte for st\u00f8d under:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Emballeringsopgaver<\/li>\n\n\n\n<li>Transport og logistik<\/li>\n\n\n\n<li>Lagerh\u00e5ndtering<\/li>\n\n\n\n<li>H\u00e5ndtering af forbrugere<\/li>\n\n\n\n<li>Automatiserede p\u00e5fyldningsprocesser<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">En dart-slagpr\u00f8ve hj\u00e6lper producenterne med at forst\u00e5, hvordan en film opf\u00f8rer sig, n\u00e5r den uds\u00e6ttes for pludselige mekaniske kr\u00e6fter.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">De vigtigste fordele<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Vurdering af filmens sejhed<\/li>\n\n\n\n<li>Sammenlign forskellige harpiksformuleringer<\/li>\n\n\n\n<li>Kontroller, at produktionen er ensartet<\/li>\n\n\n\n<li>Optimering af flerlagsfilmstrukturer<\/li>\n\n\n\n<li>Reducer antallet af fejl i pakkerne under distributionen<\/li>\n\n\n\n<li>St\u00f8tte produktudvikling og materialevalg<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">ASTM D1709-pr\u00f8vningsapparat til slagpr\u00f8vning med faldende pil fra Cell Instruments<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Cell Instruments tilbyder en professionel <strong><a href=\"https:\/\/www.packtests.com\/da\/product\/falling-dart-impact-tester\/\" target=\"_blank\" rel=\"noreferrer noopener\">Dart-slagpr\u00f8vningsmaskine<\/a><\/strong> udviklet med henblik p\u00e5 overholdelse af ASTM D1709 og rutinem\u00e6ssige laboratorieunders\u00f8gelser.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Integration af smart teknologi<\/h3>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h4 class=\"wp-block-heading\">PLC-styring og betjening via ber\u00f8ringssk\u00e6rm<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Arkitektur i industrielle PLC\u2019er<\/li>\n\n\n\n<li>7-tommers HMI-ber\u00f8ringssk\u00e6rm<\/li>\n\n\n\n<li>Intuitiv betjening<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Automatisk beregning af resultater<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Systemet beregner automatisk slagfasthedsv\u00e6rdierne efter godkendelses-\/afvisningstesten, hvilket mindsker operat\u00f8rens arbejdsbyrde og minimerer beregningsfejl.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h4 class=\"wp-block-heading\">Elektromagnetisk dartudl\u00f8ser<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Stabil dart-oph\u00e6ng<\/li>\n\n\n\n<li>Ensartede udl\u00f8sningsbetingelser<\/li>\n\n\n\n<li>Forbedret repeterbarhed<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Pneumatisk fastsp\u00e6nding af pr\u00f8ver<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ensartet fastg\u00f8relse af pr\u00f8ver<\/li>\n\n\n\n<li>Mindre indflydelse fra operat\u00f8ren<\/li>\n\n\n\n<li>Forbedret ensartethed i testningen<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Mulighed for at anvende to forskellige testmetoder<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">Funktion<\/th><th class=\"has-text-align-center\" data-align=\"center\">Konfiguration<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">Metode A<\/td><td class=\"has-text-align-center\" data-align=\"center\">Standard<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Metode B<\/td><td class=\"has-text-align-center\" data-align=\"center\">Valgfrit<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Automatiske beregninger<\/td><td class=\"has-text-align-center\" data-align=\"center\">Ja<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Pneumatisk fastsp\u00e6nding<\/td><td class=\"has-text-align-center\" data-align=\"center\">Ja<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Betjening via ber\u00f8ringssk\u00e6rm<\/td><td class=\"has-text-align-center\" data-align=\"center\">Ja<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Sikkerheds- og produktivitetsfunktioner<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Betjening via fodkontakt<\/li>\n\n\n\n<li>Knappen \u00bbTest aktivering\u00ab<\/li>\n\n\n\n<li>Belysning til observation<\/li>\n\n\n\n<li>Valgfri mikroprinter<\/li>\n\n\n\n<li>Valgfri softwareintegration<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Tekniske specifikationer<\/h2>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">Vare<\/th><th class=\"has-text-align-center\" data-align=\"center\">Specifikation<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">Testmetode<\/td><td class=\"has-text-align-center\" data-align=\"center\">Metode A \/ Metode B (valgfrit)<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Testomr\u00e5de<\/td><td class=\"has-text-align-center\" data-align=\"center\">Metode A: 50\u20132000 g<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><\/td><td class=\"has-text-align-center\" data-align=\"center\">Metode B: 300\u20132000 g<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Dartdiameter<\/td><td class=\"has-text-align-center\" data-align=\"center\">Metode A: 38 \u00b1 1 mm<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><\/td><td class=\"has-text-align-center\" data-align=\"center\">Metode B: 50 \u00b1 1 mm<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Slagh\u00f8jde<\/td><td class=\"has-text-align-center\" data-align=\"center\">660 mm \/ 1500 mm<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">N\u00f8jagtighed<\/td><td class=\"has-text-align-center\" data-align=\"center\">0,1 g (0,1 J)<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Sp\u00e6ndesystem<\/td><td class=\"has-text-align-center\" data-align=\"center\">Pneumatisk<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Air Supply<\/td><td class=\"has-text-align-center\" data-align=\"center\">0,6 MPa<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Pr\u00f8vest\u00f8rrelse<\/td><td class=\"has-text-align-center\" data-align=\"center\">&gt;150 mm \u00d7 150 mm<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Str\u00f8mforsyning<\/td><td class=\"has-text-align-center\" data-align=\"center\">110\u2013220 V vekselstr\u00f8m, 50 Hz<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"400\" height=\"600\" src=\"https:\/\/www.packtests.com\/wp-content\/uploads\/2026\/06\/\u672a\u547d\u540d.webp\" alt=\"ASTM D1709 Pr\u00f8vningsmetode til slagpr\u00f8vning med faldende pil | Standard for pil-slagpr\u00f8vning\" class=\"wp-image-1356\" title=\"\" srcset=\"https:\/\/www.packtests.com\/wp-content\/uploads\/2026\/06\/\u672a\u547d\u540d.webp 400w, https:\/\/www.packtests.com\/wp-content\/uploads\/2026\/06\/\u672a\u547d\u540d-200x300.webp 200w, https:\/\/www.packtests.com\/wp-content\/uploads\/2026\/06\/\u672a\u547d\u540d-8x12.webp 8w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Valg af den rigtige dart-slagpr\u00f8vningsmaskine<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00e5r laboratorier skal v\u00e6lge et ASTM D1709-testsystem, b\u00f8r de tage f\u00f8lgende i betragtning:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Overholdelse af kravene i ASTM D1709<\/li>\n\n\n\n<li>Underst\u00f8ttelse af metode A og metode B<\/li>\n\n\n\n<li>Automatiseringsniveau<\/li>\n\n\n\n<li>Funktioner til datah\u00e5ndtering<\/li>\n\n\n\n<li>Testkapacitet<\/li>\n\n\n\n<li>Krav til kalibrering og vedligeholdelse<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">En moderne dart-slagpr\u00f8vningsmaskine bidrager til at \u00f8ge testeffektiviteten og sikrer samtidig n\u00f8jagtige og repeterbare resultater til kvalitetskontrol og forsknings- og udviklingsform\u00e5l.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/store.astm.org\/d1709-24.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">ASTM D1709<\/a> er fortsat en af de vigtigste standarder til vurdering af plastfoliers slagfasthed. Gennem standardiserede test med fritfaldende dart kan producenterne kvantificere foliens slagfasthed, forbedre produktets ydeevne, reducere antallet af emballagefejl og opretholde en ensartet produktionskvalitet. Uanset om den anvendes til kvalitetssikring, produktudvikling eller sammenligning af materialer, er en p\u00e5lidelig dart-slagfasthedstester et uundv\u00e6rligt v\u00e6rkt\u00f8j for moderne filmtestlaboratorier.<\/p>","protected":false},"excerpt":{"rendered":"<p>M\u00e5ling af filmers slagfasthed ved hj\u00e6lp af ASTM D1709-pr\u00f8vning ASTM D1709 er den internationalt anerkendte standard for dart-slagpr\u00f8vning, der anvendes til at bestemme slagfastheden af plastfolier ved hj\u00e6lp af metoden med fritfaldende dart. Pr\u00f8vningen m\u00e5ler den v\u00e6gt af en faldende pil, der kr\u00e6ves for at for\u00e5rsage brud p\u00e5 50% af de testede pr\u00f8veemner, hvilket giver en p\u00e5lidelig indikator for [\u2026]<\/p>","protected":false},"featured_media":1356,"parent":0,"template":"","meta":{"_acf_changed":false},"standard-category":[],"class_list":["post-1352","standard","type-standard","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.packtests.com\/da\/wp-json\/wp\/v2\/standard\/1352","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.packtests.com\/da\/wp-json\/wp\/v2\/standard"}],"about":[{"href":"https:\/\/www.packtests.com\/da\/wp-json\/wp\/v2\/types\/standard"}],"version-history":[{"count":5,"href":"https:\/\/www.packtests.com\/da\/wp-json\/wp\/v2\/standard\/1352\/revisions"}],"predecessor-version":[{"id":1717,"href":"https:\/\/www.packtests.com\/da\/wp-json\/wp\/v2\/standard\/1352\/revisions\/1717"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.packtests.com\/da\/wp-json\/wp\/v2\/media\/1356"}],"wp:attachment":[{"href":"https:\/\/www.packtests.com\/da\/wp-json\/wp\/v2\/media?parent=1352"}],"wp:term":[{"taxonomy":"standard-category","embeddable":true,"href":"https:\/\/www.packtests.com\/da\/wp-json\/wp\/v2\/standard-category?post=1352"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}