{"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\/sv\/standard\/astm-d1709\/","title":{"rendered":"ASTM D1709"},"content":{"rendered":"<h2 class=\"wp-block-heading\">M\u00e4tning av filmens slagt\u00e5lighet med provning enligt ASTM D1709<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>ASTM D1709<\/strong> \u00e4r den internationellt erk\u00e4nda standarden f\u00f6r dart-slagprovning som anv\u00e4nds f\u00f6r att best\u00e4mma plastfilmers slagh\u00e5llfasthet med hj\u00e4lp av metoden med fritt fallande dart. Provningen m\u00e4ter den vikt p\u00e5 en fallande dart som kr\u00e4vs f\u00f6r att orsaka brott i 50% av de testade proverna, vilket ger en tillf\u00f6rlitlig indikator p\u00e5 filmens seghet, punkteringsmotst\u00e5nd och slagh\u00e5llfasthet.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tillverkare av flexibla f\u00f6rpackningar, jordbruksfilmer, industriella foder, medicinska f\u00f6rpackningar och f\u00f6rpackningar f\u00f6r konsumentprodukter f\u00f6rlitar sig p\u00e5 provning enligt ASTM D1709 f\u00f6r att utv\u00e4rdera materialets prestanda vid pl\u00f6tsliga st\u00f6tar. Genom att kvantifiera slagh\u00e5llfastheten kan laboratorier optimera filmstrukturer, j\u00e4mf\u00f6ra material, kontrollera produktionskonsistensen och s\u00e4kerst\u00e4lla produktkvaliteten innan produkten sl\u00e4pps ut p\u00e5 marknaden.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Vad \u00e4r ASTM D1709?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">ASTM D1709, <em>Standardtestmetoder f\u00f6r best\u00e4mning av plastfilms slagh\u00e5llfasthet med metoden med fritt fallande pil<\/em>, fastst\u00e4ller f\u00f6rfaranden f\u00f6r best\u00e4mning av plastfilmers slagh\u00e5llfasthet med hj\u00e4lp av en halvsf\u00e4risk pil som sl\u00e4pps fr\u00e5n en angiven h\u00f6jd.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Testresultatet anger den dartmassa som statistiskt sett orsakar brott hos 50% provkroppar under kontrollerade testf\u00f6rh\u00e5llanden.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Standarden omfattar f\u00f6ljande:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Testmetod A<\/strong><\/li>\n\n\n\n<li><strong>Testmetod B<\/strong><\/li>\n\n\n\n<li><strong>Testmetod f\u00f6r trappor<\/strong><\/li>\n\n\n\n<li><strong>Alternativ metod f\u00f6r grupptestning<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Metoden anv\u00e4nds i stor utstr\u00e4ckning f\u00f6r kvalitetskontroll, produktutveckling, materialj\u00e4mf\u00f6relser och verifiering av specifikationer.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ASTM D1709 \u2013 Provningsprincip<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Provningen m\u00e4ter den slagenergi som kr\u00e4vs f\u00f6r att bryta ett filmprov.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En halvsf\u00e4risk pil avfyras fr\u00e5n en angiven h\u00f6jd och tr\u00e4ffar ett fastsp\u00e4nt filmprov. Beroende p\u00e5 om provet godk\u00e4nns eller underk\u00e4nns justeras pilens vikt i enlighet med det valda provningsf\u00f6rfarandet.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Efter flera fall ber\u00e4knar systemet den dartmassa som motsvarar en sannolikhet p\u00e5 50% f\u00f6r att provkroppen ska g\u00e5 s\u00f6nder.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Det v\u00e4rde som erh\u00e5lls fungerar som ett kvantitativt m\u00e5tt p\u00e5 slagt\u00e5lighet.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ASTM D1709: Testmetod A j\u00e4mf\u00f6rt med metod 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\">Metod A<\/th><th class=\"has-text-align-center\" data-align=\"center\">Metod 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\">Fallh\u00f6jd<\/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 f\u00f6r slagt\u00e5lighet<\/td><td class=\"has-text-align-center\" data-align=\"center\">Cirka 50 g till 6 kg<\/td><td class=\"has-text-align-center\" data-align=\"center\">Cirka 300 g till 6 kg<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Typiska anv\u00e4ndningsomr\u00e5den<\/td><td class=\"has-text-align-center\" data-align=\"center\">Allm\u00e4nna f\u00f6rpackningsfilmer<\/td><td class=\"has-text-align-center\" data-align=\"center\">Filmer med st\u00f6rre genomslagskraft<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Riktlinjer f\u00f6r vikt\u00f6kning<\/td><td class=\"has-text-align-center\" data-align=\"center\">Cirka 15% i brottvikt<\/td><td class=\"has-text-align-center\" data-align=\"center\">Cirka 5\u201315% av brottvikten<\/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\">Metod A<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">I metod A anv\u00e4nds:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>38 mm halvsf\u00e4risk pil<\/li>\n\n\n\n<li>660 mm fallh\u00f6jd<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Denna metod anv\u00e4nds ofta f\u00f6r:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Polyetenfilmer<\/li>\n\n\n\n<li>F\u00f6rpackningsfilmer<\/li>\n\n\n\n<li>Str\u00e4ckfilmer<\/li>\n\n\n\n<li>Jordbruksfilmer<\/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\">Metod B<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Metod B anv\u00e4nder:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>50 mm halvsf\u00e4risk pil<\/li>\n\n\n\n<li>1520 mm fallh\u00f6jd<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Denna konfiguration \u00e4r l\u00e4mplig f\u00f6r:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Filmer f\u00f6r tung anv\u00e4ndning<\/li>\n\n\n\n<li>Industriella foder<\/li>\n\n\n\n<li>Tjockare plastkonstruktioner<\/li>\n\n\n\n<li>F\u00f6rpackningsmaterial med h\u00f6g h\u00e5llfasthet<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">ASTM D1709 Provningsmetod f\u00f6r trappor<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Trapptekniken \u00e4r den vanligaste metoden.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Testf\u00f6rfarande<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>V\u00e4lj metod A eller metod B.<\/li>\n\n\n\n<li>M\u00e4t provets tjocklek.<\/li>\n\n\n\n<li>V\u00e4lj en startvikt f\u00f6r pilen som ligger n\u00e4ra den f\u00f6rv\u00e4ntade brottpunkten.<\/li>\n\n\n\n<li>Sp\u00e4nn fast provet ordentligt.<\/li>\n\n\n\n<li>Sl\u00e4pp pilen.<\/li>\n\n\n\n<li>Registrera godk\u00e4nd eller underk\u00e4nd.<\/li>\n\n\n\n<li>Justera dartens vikt:\n<ul class=\"wp-block-list\">\n<li>Misslyckande \u2192 g\u00e5 ner i vikt<\/li>\n\n\n\n<li>Inget misslyckande \u2192 \u00f6ka vikten<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Forts\u00e4tt testningen tills det \u00f6nskade antalet misslyckanden och godk\u00e4nda resultat har uppn\u00e5tts.<\/li>\n\n\n\n<li>Ber\u00e4kna felvikten f\u00f6r 50%.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">F\u00f6rdelar<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Effektiv testning<\/li>\n\n\n\n<li>Minskad provf\u00f6rbrukning<\/li>\n\n\n\n<li>H\u00f6g statistisk tillf\u00f6rlitlighet<\/li>\n\n\n\n<li>Utm\u00e4rkt repeterbarhet<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Alternativ metod f\u00f6r fallprovning av dartpilar<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Det alternativa f\u00f6rfarandet inneb\u00e4r att proverna utv\u00e4rderas i grupper om tio.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u00d6versikt \u00f6ver f\u00f6rfarandet<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Tio provstycken testas med en viss pilvikt.<\/li>\n\n\n\n<li>Felprocenten ber\u00e4knas.<\/li>\n\n\n\n<li>Dartens vikt justeras inf\u00f6r kommande grupper.<\/li>\n\n\n\n<li>Testningen forts\u00e4tter tills tillr\u00e4ckligt m\u00e5nga datapunkter har samlats in mellan 0% och felet vid 100%.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Denna metod anv\u00e4nds ofta n\u00e4r laboratorier beh\u00f6ver g\u00f6ra en mer omfattande statistisk utv\u00e4rdering av materialets prestanda.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Krav p\u00e5 provkroppar<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">F\u00f6r tillf\u00f6rlitliga provningar enligt ASTM D1709:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">F\u00f6rberedelse av prover<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Filmen ska vara fri fr\u00e5n rynkor och veck.<\/li>\n\n\n\n<li>Ytkontaminering b\u00f6r undvikas.<\/li>\n\n\n\n<li>Proverna b\u00f6r vara representativa f\u00f6r det faktiska produktionsmaterialet.<\/li>\n\n\n\n<li>Tjockleken ska m\u00e4tas och dokumenteras.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Rekommenderad provstorlek<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>St\u00f6rre \u00e4n 150 mm \u00d7 150 mm<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">En korrekt provf\u00f6rberedelse f\u00f6rb\u00e4ttrar testets repeterbarhet och reproducerbarhet avsev\u00e4rt.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Varf\u00f6r genomf\u00f6ra ett dart-slagprov?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Plastfilmer uts\u00e4tts ofta f\u00f6r st\u00f6tar vid:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>F\u00f6rpackningsverksamhet<\/li>\n\n\n\n<li>Transport och logistik<\/li>\n\n\n\n<li>Lagerh\u00e5llning<\/li>\n\n\n\n<li>Kundhantering<\/li>\n\n\n\n<li>Automatiserade p\u00e5fyllningsprocesser<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ett dart-slagprov hj\u00e4lper tillverkarna att f\u00f6rst\u00e5 hur en film beter sig n\u00e4r den uts\u00e4tts f\u00f6r pl\u00f6tsliga mekaniska krafter.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">De viktigaste f\u00f6rdelarna<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Utv\u00e4rdera filmens seghet<\/li>\n\n\n\n<li>J\u00e4mf\u00f6r olika hartsblandningar<\/li>\n\n\n\n<li>Kontrollera att produktionen \u00e4r enhetlig<\/li>\n\n\n\n<li>Optimera flerskiktsfilmstrukturer<\/li>\n\n\n\n<li>Minska antalet fel i paketleveranserna<\/li>\n\n\n\n<li>St\u00f6dja produktutveckling och materialval<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">ASTM D1709 Fallande pil-slagprovningsapparat fr\u00e5n Cell Instruments<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Cell Instruments erbjuder en professionell <strong><a href=\"https:\/\/www.packtests.com\/sv\/product\/falling-dart-impact-tester\/\" target=\"_blank\" rel=\"noreferrer noopener\">Dart-slagprovningsapparat<\/a><\/strong> utformad f\u00f6r att uppfylla kraven i ASTM D1709 och f\u00f6r rutinm\u00e4ssiga laboratorietester.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Integration av smart teknik<\/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-styrning och man\u00f6vrering via peksk\u00e4rm<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Arkitektur f\u00f6r industriella PLC:er<\/li>\n\n\n\n<li>7-tums HMI-peksk\u00e4rm<\/li>\n\n\n\n<li>Intuitiv anv\u00e4ndning<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Automatisk resultatber\u00e4kning<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Systemet ber\u00e4knar automatiskt slagh\u00e5llfasthetsv\u00e4rdena efter godk\u00e4nd\/underk\u00e4nd-testning, vilket minskar operat\u00f6rens arbetsb\u00f6rda och minimerar ber\u00e4kningsfel.<\/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 dartutl\u00f6sning<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Stabil dartupph\u00e4ngning<\/li>\n\n\n\n<li>Enhetliga villkor f\u00f6r utgivning<\/li>\n\n\n\n<li>F\u00f6rb\u00e4ttrad repeterbarhet<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Pneumatisk provkl\u00e4mning<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Enhetlig provh\u00e5llning<\/li>\n\n\n\n<li>Minskat inflytande fr\u00e5n operat\u00f6ren<\/li>\n\n\n\n<li>F\u00f6rb\u00e4ttrad enhetlighet vid testning<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">M\u00f6jlighet att anv\u00e4nda tv\u00e5 olika 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\">Metod A<\/td><td class=\"has-text-align-center\" data-align=\"center\">Standard<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Metod B<\/td><td class=\"has-text-align-center\" data-align=\"center\">Valfritt<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Automatiska ber\u00e4kningar<\/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\u00e4nning<\/td><td class=\"has-text-align-center\" data-align=\"center\">Ja<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Styrning via peksk\u00e4rm<\/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\">S\u00e4kerhets- och produktivitetsfunktioner<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Man\u00f6vrering med fotpedal<\/li>\n\n\n\n<li>Knapp f\u00f6r testaktivering<\/li>\n\n\n\n<li>Arbetsbelysning<\/li>\n\n\n\n<li>Mikroskrivare (tillval)<\/li>\n\n\n\n<li>Valfri programvaruintegration<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Tekniska 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\">F\u00f6rem\u00e5l<\/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\">Testmetod<\/td><td class=\"has-text-align-center\" data-align=\"center\">Metod A \/ Metod B (valfritt)<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Testomr\u00e5de<\/td><td class=\"has-text-align-center\" data-align=\"center\">Metod 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\">Metod 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\">Metod 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\">Metod B: 50 \u00b1 1 mm<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Slagh\u00f6jd<\/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\">Noggrannhet<\/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\u00e4nnsystem<\/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\">Provstorlek<\/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\u00f6mf\u00f6rs\u00f6rjning<\/td><td class=\"has-text-align-center\" data-align=\"center\">110\u2013220 V v\u00e4xelstr\u00f6m, 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 Provningsmetod f\u00f6r fallande pil | Standard f\u00f6r pilprovning\" 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\">Att v\u00e4lja r\u00e4tt dart-slagprovningsapparat<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00e4r laboratorier v\u00e4ljer ett provningssystem enligt ASTM D1709 b\u00f6r de beakta f\u00f6ljande:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u00d6verensst\u00e4mmelse med kraven i ASTM D1709<\/li>\n\n\n\n<li>St\u00f6d f\u00f6r metod A och metod B<\/li>\n\n\n\n<li>Automatiseringsgrad<\/li>\n\n\n\n<li>Funktioner f\u00f6r datahantering<\/li>\n\n\n\n<li>Testkapacitet<\/li>\n\n\n\n<li>Krav p\u00e5 kalibrering och underh\u00e5ll<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">En modern testutrustning f\u00f6r dart-slagprovning bidrar till att \u00f6ka testeffektiviteten samtidigt som den garanterar exakta och repeterbara resultat f\u00f6r kvalitetskontroll och forskning och utveckling.<\/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> \u00e4r fortfarande en av de viktigaste standarderna f\u00f6r att utv\u00e4rdera plastfilmers slagh\u00e5llfasthet. Genom standardiserade provningar med fritt fallande pil kan tillverkarna kvantifiera filmens slagh\u00e5llfasthet, f\u00f6rb\u00e4ttra produktens prestanda, minska antalet f\u00f6rpackningsfel och uppr\u00e4tth\u00e5lla en j\u00e4mn produktionskvalitet. Oavsett om den anv\u00e4nds f\u00f6r kvalitetss\u00e4kring, produktutveckling eller materialj\u00e4mf\u00f6relser \u00e4r en p\u00e5litlig dart-slagh\u00e5llfasthetsprovare ett oumb\u00e4rligt verktyg f\u00f6r moderna filmtestlaboratorier.<\/p>","protected":false},"excerpt":{"rendered":"<p>M\u00e4tning av filmens slagh\u00e5llfasthet enligt provningsmetoden ASTM D1709 ASTM D1709 \u00e4r den internationellt erk\u00e4nda standarden f\u00f6r dart-slagprovning som anv\u00e4nds f\u00f6r att best\u00e4mma slagh\u00e5llfastheten hos plastfilmer genom metoden med fritt fallande dart. Provningen m\u00e4ter vilken vikt p\u00e5 en fallande pil som kr\u00e4vs f\u00f6r att orsaka brott i 50% av de testade proverna, vilket ger en tillf\u00f6rlitlig indikator p\u00e5 [\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\/sv\/wp-json\/wp\/v2\/standard\/1352","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.packtests.com\/sv\/wp-json\/wp\/v2\/standard"}],"about":[{"href":"https:\/\/www.packtests.com\/sv\/wp-json\/wp\/v2\/types\/standard"}],"version-history":[{"count":5,"href":"https:\/\/www.packtests.com\/sv\/wp-json\/wp\/v2\/standard\/1352\/revisions"}],"predecessor-version":[{"id":1717,"href":"https:\/\/www.packtests.com\/sv\/wp-json\/wp\/v2\/standard\/1352\/revisions\/1717"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.packtests.com\/sv\/wp-json\/wp\/v2\/media\/1356"}],"wp:attachment":[{"href":"https:\/\/www.packtests.com\/sv\/wp-json\/wp\/v2\/media?parent=1352"}],"wp:term":[{"taxonomy":"standard-category","embeddable":true,"href":"https:\/\/www.packtests.com\/sv\/wp-json\/wp\/v2\/standard-category?post=1352"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}