{"id":100,"date":"2025-12-24T08:27:09","date_gmt":"2025-12-24T08:27:09","guid":{"rendered":"https:\/\/www.impacttesting.net\/?p=100"},"modified":"2025-12-24T08:27:11","modified_gmt":"2025-12-24T08:27:11","slug":"dart-impact-testing-of-polyethylene-film","status":"publish","type":"post","link":"https:\/\/www.impacttesting.net\/hu\/dart-impact-testing-of-polyethylene-film\/","title":{"rendered":"Polietil\u00e9n f\u00f3lia dart \u00fct\u00e9svizsg\u00e1lata: ASTM D1709 \u00fatmutat\u00f3"},"content":{"rendered":"<h1 class=\"wp-block-heading\">Polietil\u00e9n f\u00f3lia Dart \u00fct\u00e9svizsg\u00e1lata az ASTM D1709 szabv\u00e1ny szerint<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">Bevezet\u00e9s a polietil\u00e9n f\u00f3lia Dart \u00fct\u00e9svizsg\u00e1lat\u00e1ba<\/h2>\n\n\n\n<p>A polietil\u00e9n f\u00f3li\u00e1kat tart\u00f3ss\u00e1guk, rugalmass\u00e1guk \u00e9s k\u00f6nny\u0171 s\u00falyuk miatt sz\u00e9les k\u00f6rben haszn\u00e1lj\u00e1k a csomagol\u00e1sban. A sz\u00e1ll\u00edt\u00e1s \u00e9s kezel\u00e9s sor\u00e1n ny\u00fajtott teljes\u00edtm\u00e9ny biztos\u00edt\u00e1s\u00e1hoz azonban elengedhetetlen a mechanikai viselked\u00e9s\u00fck meg\u00e9rt\u00e9se - k\u00fcl\u00f6n\u00f6sen hirtelen \u00fctk\u00f6z\u00e9s eset\u00e9n.&nbsp;<strong>Polietil\u00e9n f\u00f3lia dart \u00fct\u00e9svizsg\u00e1lata<\/strong>&nbsp;megb\u00edzhat\u00f3 m\u00f3dot k\u00edn\u00e1l a filmek szakad\u00e1ssal szembeni ellen\u00e1ll\u00e1s\u00e1nak \u00e9rt\u00e9kel\u00e9s\u00e9re, amikor egy szabadon zuhan\u00f3 d\u00e1rda eltal\u00e1lja \u0151ket. Az \u00e9rt\u00e9kel\u00e9s egyik legelismertebb szabv\u00e1nya a k\u00f6vetkez\u0151&nbsp;<a href=\"https:\/\/www.impacttesting.net\/hu\/astm-d1709\/\"><strong>ASTM D1709<\/strong><\/a>, amely meghat\u00e1rozza a m\u00f3dszertant \u00e9s a k\u00e9sz\u00fcl\u00e9keket a&nbsp;<strong>\u00fct\u00e9svizsg\u00e1lat<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Az ASTM D1709 \u00e9s az \u00fct\u00e9sny\u00edlvessz\u0151 vizsg\u00e1lati m\u00f3dszerek \u00e1ttekint\u00e9se<\/h2>\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<iframe title=\"zuhan\u00f3 dart \u00fct\u00e9svizsg\u00e1lat lemezes f\u00f3li\u00e1n \u00e9s lemezen A. \u00e9s B. m\u00f3dszer ASTM D1709 ISO 7765-1\" width=\"1020\" height=\"574\" src=\"https:\/\/www.youtube.com\/embed\/a3_9M0x3w7U?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>\n<\/div><\/figure>\n\n\n\n<p>Az ASTM D1709 k\u00e9t szabv\u00e1nyos\u00edtott elj\u00e1r\u00e1st v\u00e1zol fel...<strong>A vizsg\u00e1lati m\u00f3dszer<\/strong>&nbsp;\u00e9s&nbsp;<strong>B vizsg\u00e1lati m\u00f3dszer<\/strong>-meghat\u00e1rozni a&nbsp;<strong>\u00fct\u00e9s\u00e1ll\u00f3s\u00e1g<\/strong>&nbsp;m\u0171anyag f\u00f3li\u00e1k. E m\u00f3dszerek sor\u00e1n egy f\u00e9lg\u00f6mb alak\u00fa ny\u00edlvessz\u0151t dobnak egy beszor\u00edtott f\u00f3liamint\u00e1ra, \u00e9s meghat\u00e1rozott k\u00f6r\u00fclm\u00e9nyek k\u00f6z\u00f6tt \u00e9rt\u00e9kelik a meghib\u00e1sod\u00e1st.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>A vizsg\u00e1lati m\u00f3dszer<\/strong>\u00a0egy\u00a0<strong>38,10 mm-es dart fej<\/strong>\u00a0kiesett\u00a0<strong>0,66 m\u00e9ter<\/strong>, a k\u00f6vetkez\u0151 filmek eset\u00e9ben alkalmazand\u00f3\u00a0<strong>50 g-t\u00f3l 6 kg-ig<\/strong>.<\/li>\n\n\n\n<li><strong>B vizsg\u00e1lati m\u00f3dszer<\/strong>\u00a0egy\u00a0<strong>50,80 mm-es dart fej<\/strong>\u00a0kiesett\u00a0<strong>1,52 m\u00e9ter<\/strong>, alkalmas\u00a0<strong>0,3 kg-t\u00f3l 6 kg-ig<\/strong>\u00a0hat\u00e1sszintek.<\/li>\n<\/ul>\n\n\n\n<p>Az els\u0151dleges eredm\u00e9ny a&nbsp;<strong>\u00fct\u00e9s okozta t\u00f6nkremeneteli t\u00f6meg (WF)<\/strong>-a s\u00faly, amelyn\u00e9l a vizsg\u00e1lt mint\u00e1k 50% t\u00f6mege meghib\u00e1sodik -, ami a f\u00f3lia \u00fct\u00e9s\u00e1ll\u00f3s\u00e1g\u00e1nak mennyis\u00e9gi m\u00e9r\u0151sz\u00e1ma.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Vizsg\u00e1lati be\u00e1ll\u00edt\u00e1s \u00e9s a minta kondicion\u00e1l\u00e1sa<\/h2>\n\n\n\n<p>A megfelel\u0151 kondicion\u00e1l\u00e1s \u00e9s mintael\u0151k\u00e9sz\u00edt\u00e9s biztos\u00edtja a vizsg\u00e1lat pontoss\u00e1g\u00e1t \u00e9s megism\u00e9telhet\u0151s\u00e9g\u00e9t. Az ASTM D1709 szabv\u00e1ny szerint:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Felt\u00e9tel filmek<\/strong>\u00a0a  c\u00edmen.\u00a0<strong>23\u00b0C \u00b12\u00b0C<\/strong>\u00a0\u00e9s\u00a0<strong>50% \u00b110% RH<\/strong>\u00a0legal\u00e1bb\u00a0<strong>40 \u00f3ra<\/strong>\u00a0a tesztel\u00e9s el\u0151tt.<\/li>\n\n\n\n<li><strong>Mintadarabok<\/strong>\u00a0hib\u00e1tlan legyen (lyukak, r\u00e1ncok vagy gy\u0171r\u0151d\u00e9sek), \u00e9s el\u00e9g nagy ahhoz, hogy t\u00falny\u00faljon a szor\u00edt\u00f3t\u00f6m\u00edt\u00e9seken.<\/li>\n\n\n\n<li>V\u00e1lassza ki a vizsg\u00e1lati m\u00f3dszert (A vagy B) a f\u00f3lia v\u00e1rhat\u00f3 szil\u00e1rds\u00e1gi tartom\u00e1nya alapj\u00e1n.<\/li>\n<\/ul>\n\n\n\n<p>A megb\u00edzhat\u00f3 eredm\u00e9nyek \u00e9rdek\u00e9ben a vizsg\u00e1latokat ellen\u0151rz\u00f6tt k\u00f6rnyezetben, kalibr\u00e1lt \u00e9s megfelel\u0151en be\u00e1ll\u00edtott berendez\u00e9sekkel kell elv\u00e9gezni.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Dart \u00fct\u00e9svizsg\u00e1lati elj\u00e1r\u00e1s: Csoportos m\u00f3dszer<\/h2>\n\n\n\n<p>K\u00e9t technika enged\u00e9lyezett a k\u00f6vetkez\u0151k szerint&nbsp;<a href=\"https:\/\/store.astm.org\/d1709-22.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">ASTM D1709<\/a>: a&nbsp;<strong>l\u00e9pcs\u0151h\u00e1z (fel\/le)<\/strong>&nbsp;m\u00f3dszer \u00e9s a&nbsp;<strong>alternat\u00edv csoport<\/strong>&nbsp;m\u00f3dszer. Mindk\u00e9t m\u00f3dszer c\u00e9lja, hogy megtal\u00e1lja azt a d\u00e1rdas\u00falyt, amely a mint\u00e1k 50%-j\u00e9nek meghib\u00e1sod\u00e1s\u00e1t okozza.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>L\u00e9pcs\u0151zetes m\u00f3dszer<\/strong>: Minden egyes vizsg\u00e1lat ut\u00e1n fokozatosan \u00e1ll\u00edtsa be a dart s\u00faly\u00e1t annak alapj\u00e1n, hogy az el\u0151z\u0151 minta megfelelt vagy nem felelt meg. A vizsg\u00e1lat addig folytat\u00f3dik, am\u00edg\u00a0<strong>10 hiba \u00e9s 10 nem hiba<\/strong>\u00a0kapunk.<\/li>\n\n\n\n<li><strong>Csoportos m\u00f3dszer<\/strong>: Vizsg\u00e1lati mint\u00e1k\u00a0<strong>10 f\u0151s csoportok<\/strong>\u00a0azonos s\u00faly mellett, majd a k\u00f6vetkez\u0151 csoportn\u00e1l v\u00e1ltoztassa meg a dart t\u00f6meg\u00e9t. Ehhez a m\u00f3dszerhez legal\u00e1bb \u00f6t adatpontra van sz\u00fcks\u00e9g, amelyek a k\u00f6vetkez\u0151 \u00e9rt\u00e9kek k\u00f6z\u00f6tt mozognak\u00a0<strong>0%-t\u0151l 100%-ig terjed\u0151 hib\u00e1k<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p><strong>WF (\u00fctk\u00f6z\u00e9si hibas\u00faly)<\/strong>&nbsp;matematikai \u00faton vagy grafikus interpol\u00e1ci\u00f3val sz\u00e1m\u00edtj\u00e1k ki, hogy meghat\u00e1rozz\u00e1k az 50% meghib\u00e1sod\u00e1si ar\u00e1nynak megfelel\u0151 s\u00falyt.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Mi\u00e9rt fontos a polietil\u00e9n f\u00f3lia Dart \u00fct\u00e9svizsg\u00e1lata?<\/h2>\n\n\n\n<p>Ez a teszt olyan val\u00f3s forgat\u00f3k\u00f6nyveket szimul\u00e1l, mint p\u00e9ld\u00e1ul a sz\u00e1ll\u00edt\u00e1s vagy rakod\u00e1s k\u00f6zbeni lees\u00e9s, seg\u00edtve ezzel a gy\u00e1rt\u00f3kat:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Megfelel\u0151 filmvastags\u00e1g \u00e9s k\u00e9sz\u00edtm\u00e9nyek kiv\u00e1laszt\u00e1sa<\/li>\n\n\n\n<li>A terepi teljes\u00edtm\u00e9ny el\u0151rejelz\u00e9se<\/li>\n\n\n\n<li>Biztos\u00edtja a term\u00e9k v\u00e9delm\u00e9t sz\u00e1ll\u00edt\u00e1s k\u00f6zben<\/li>\n\n\n\n<li>Megfelel a\u00a0<strong>ipari \u00e9s szab\u00e1lyoz\u00e1si szabv\u00e1nyok<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Seg\u00edt a k\u00f6vetkez\u0151kben is&nbsp;<strong>min\u0151s\u00e9gbiztos\u00edt\u00e1s<\/strong>&nbsp;\u00e9s&nbsp;<strong>K+F<\/strong>&nbsp;a mechanikai gyenge pontok azonos\u00edt\u00e1s\u00e1val, miel\u0151tt a csomagol\u00e1s a gy\u00e1rt\u00e1sba vagy az ell\u00e1t\u00e1si l\u00e1ncba ker\u00fclne.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">A megfelel\u0151 berendez\u00e9s kiv\u00e1laszt\u00e1sa: FDT-01 Dart Impact Tester az Cell Instruments-t\u0151l<\/h2>\n\n\n\n<figure class=\"wp-block-image alignleft size-full\"><img decoding=\"async\" width=\"600\" height=\"600\" src=\"https:\/\/www.impacttesting.net\/wp-content\/uploads\/2025\/12\/Dart-Impact-Testing-of-Polyethylene-Film-per-ASTM-D1709.webp\" alt=\"Polietil\u00e9n f\u00f3lia Dart \u00fct\u00e9svizsg\u00e1lata az ASTM D1709 szabv\u00e1ny szerint\" class=\"wp-image-104\" srcset=\"https:\/\/www.impacttesting.net\/wp-content\/uploads\/2025\/12\/Dart-Impact-Testing-of-Polyethylene-Film-per-ASTM-D1709.webp 600w, https:\/\/www.impacttesting.net\/wp-content\/uploads\/2025\/12\/Dart-Impact-Testing-of-Polyethylene-Film-per-ASTM-D1709-400x400.webp 400w, https:\/\/www.impacttesting.net\/wp-content\/uploads\/2025\/12\/Dart-Impact-Testing-of-Polyethylene-Film-per-ASTM-D1709-280x280.webp 280w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n\n\n\n<p>V\u00e9grehajtani&nbsp;<strong>polietil\u00e9n f\u00f3lia dart \u00fct\u00e9svizsg\u00e1lata<\/strong>&nbsp;a k\u00f6vetkez\u0151kkel \u00f6sszhangban&nbsp;<strong>ASTM D1709<\/strong>, a precizit\u00e1s \u00e9s a megb\u00edzhat\u00f3s\u00e1g a vizsg\u00e1l\u00f3berendez\u00e9sekben kritikus fontoss\u00e1g\u00fa.&nbsp;<strong>Cell Instruments'&nbsp;<a href=\"https:\/\/www.impacttesting.net\/hu\/falling-dart-impact-tester\/\">FDT-01<\/a>&nbsp;Dart \u00fct\u00e9sm\u00e9r\u0151<\/strong>&nbsp;kifejezetten erre a c\u00e9lra tervezt\u00e9k, \u00e9s a k\u00f6vetkez\u0151ket k\u00edn\u00e1lja:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Mind az A, mind a B vizsg\u00e1lati m\u00f3dszer t\u00e1mogat\u00e1sa<\/strong><\/li>\n\n\n\n<li><strong>\u00c1ll\u00edthat\u00f3 dart kiold\u00e1si magass\u00e1g \u00e9s fej<\/strong><\/li>\n\n\n\n<li><strong>Felhaszn\u00e1l\u00f3bar\u00e1t fel\u00fcletek<\/strong>\u00a0a gyors be\u00e1ll\u00edt\u00e1shoz \u00e9s adatr\u00f6gz\u00edt\u00e9shez<\/li>\n\n\n\n<li><strong>Megfelel\u0151 kialak\u00edt\u00e1s<\/strong>\u00a0ASTM \u00e9s ISO szabv\u00e1nyokkal<\/li>\n<\/ul>\n\n\n\n<p>Ak\u00e1r a csomagol\u00e1si K+F, ak\u00e1r a min\u0151s\u00e9gellen\u0151rz\u00e9s vagy a gy\u00e1rt\u00e1s ter\u00fclet\u00e9n dolgozik, a&nbsp;<strong>FDT-01<\/strong>&nbsp;biztos\u00edtja, hogy k\u00f6vetkezetes, reproduk\u00e1lhat\u00f3 eredm\u00e9nyeket kapjon, amelyek kritikusak a d\u00f6nt\u00e9shozatalhoz.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Legjobb gyakorlatok \u00e9s megfontol\u00e1sok<\/h2>\n\n\n\n<p>A dart \u00fct\u00e9svizsg\u00e1lat hat\u00e9konys\u00e1g\u00e1nak maximaliz\u00e1l\u00e1sa:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mindig\u00a0<strong>ellen\u0151rizze a dart fej \u00e1llapot\u00e1t<\/strong>\u00a0karcol\u00e1sok vagy kop\u00e1s miatt.<\/li>\n\n\n\n<li>Biztos\u00edtani kell a  c\u00edmet.\u00a0<strong>pontos igaz\u00edt\u00e1s<\/strong>\u00a0a d\u00e1rd\u00e1nak a k\u00f6z\u00e9ppontban t\u00f6rt\u00e9n\u0151 becsap\u00f3d\u00e1s \u00e9rdek\u00e9ben.<\/li>\n\n\n\n<li><strong>Ker\u00fclje a t\u00falzott passz\u00edv hangnemet<\/strong>\u00a0a jelent\u00e9st\u00e9telben az egy\u00e9rtelm\u0171s\u00e9g fenntart\u00e1sa \u00e9rdek\u00e9ben.<\/li>\n\n\n\n<li>Minden eredm\u00e9nyt szisztematikusan r\u00f6gz\u00edtsen a WF pontos kisz\u00e1m\u00edt\u00e1s\u00e1hoz.<\/li>\n<\/ul>\n\n\n\n<p>Megjegyzend\u0151, hogy&nbsp;<strong>a vizsg\u00e1lati eredm\u00e9nyek nagym\u00e9rt\u00e9kben f\u00fcggnek az anyagtulajdons\u00e1gokt\u00f3l<\/strong>, bele\u00e9rtve a vastags\u00e1got, a tisztas\u00e1got, az adal\u00e9kanyagokat \u00e9s az egyenletess\u00e9get. Csak hasonl\u00f3 szerkezet\u0171 \u00e9s vastags\u00e1g\u00fa (\u00b125%) f\u00f3li\u00e1k adatait hasonl\u00edtsa \u00f6ssze az \u00e9rv\u00e9nyes \u00f6sszehasonl\u00edt\u00e1s \u00e9rdek\u00e9ben.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">K\u00f6vetkeztet\u00e9s<\/h2>\n\n\n\n<p>A k\u00f6vetkez\u0151k meg\u00e9rt\u00e9se \u00e9s alkalmaz\u00e1sa&nbsp;<strong>polietil\u00e9n f\u00f3lia dart \u00fct\u00e9svizsg\u00e1lata<\/strong>&nbsp;a  haszn\u00e1lat\u00e1val&nbsp;<strong>ASTM D1709<\/strong>&nbsp;biztos\u00edtja, hogy a csomagol\u00f3anyagok megfeleljenek a szigor\u00fa \u00fct\u00e9s\u00e1ll\u00f3s\u00e1gi k\u00f6vetelm\u00e9nyeknek. A szabv\u00e1nyos\u00edtott vizsg\u00e1latok \u00e9s prec\u00edzi\u00f3s m\u0171szerek, mint p\u00e9ld\u00e1ul a&nbsp;<strong><a href=\"https:\/\/www.impacttesting.net\/hu\/\">Cell Instruments<\/a>&nbsp;FDT-01<\/strong>, a csomagol\u00e1si szakemberek magabiztosan \u00e9rv\u00e9nyes\u00edthetik a f\u00f3lia tart\u00f3ss\u00e1g\u00e1t, cs\u00f6kkenthetik a term\u00e9kvesztes\u00e9get, \u00e9s n\u00f6velhetik a v\u00e9gfelhaszn\u00e1l\u00f3k el\u00e9gedetts\u00e9g\u00e9t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">GYIK<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u00a0Mit m\u00e9r a dart \u00fct\u00e9svizsg\u00e1lat a polietil\u00e9n f\u00f3li\u00e1kban?<\/strong><br>Azt az energi\u00e1t m\u00e9ri, amely egy szabadon zuhan\u00f3 d\u00e1rda alatt a f\u00f3lia meghib\u00e1sod\u00e1s\u00e1hoz (szakad\u00e1s\u00e1hoz) sz\u00fcks\u00e9ges, az 50% meghib\u00e1sod\u00e1st okoz\u00f3 t\u00f6megben kifejezve.<\/li>\n\n\n\n<li><strong>\u00a0Mi a k\u00fcl\u00f6nbs\u00e9g az ASTM D1709 A \u00e9s B vizsg\u00e1lati m\u00f3dszer k\u00f6z\u00f6tt?<\/strong><br>Az A m\u00f3dszer 0,66 m-r\u0151l ledobott kisebb (38,10 mm), m\u00edg a B m\u00f3dszer 1,52 m-r\u0151l ledobott nagyobb (50,80 mm) ny\u00edlvessz\u0151t haszn\u00e1l, amely k\u00fcl\u00f6nb\u00f6z\u0151 filmszil\u00e1rds\u00e1gi tartom\u00e1nyokat fed le.<\/li>\n\n\n\n<li><strong>\u00a0Mi\u00e9rt a l\u00e9pcs\u0151zetes m\u00f3dszert r\u00e9szes\u00edtik el\u0151nyben a dart \u00fct\u00e9svizsg\u00e1lat sor\u00e1n?<\/strong><br>A r\u00f6gz\u00edtett s\u00falycsoportos vizsg\u00e1lathoz k\u00e9pest kevesebb pr\u00f3badarab felhaszn\u00e1l\u00e1s\u00e1val hat\u00e9konyabban lehet meghat\u00e1rozni az 50% t\u00f6nkremeneteli s\u00faly\u00e1t.<\/li>\n\n\n\n<li><strong>\u00a0Hogyan kell kondicion\u00e1lni a polietil\u00e9n f\u00f3lia mint\u00e1kat a vizsg\u00e1lat el\u0151tt?<\/strong><br>A film tulajdons\u00e1gainak stabiliz\u00e1l\u00e1sa \u00e9rdek\u00e9ben a vizsg\u00e1lat el\u0151tt legal\u00e1bb 40 \u00f3r\u00e1n \u00e1t 23\u00b0C \u00b12\u00b0C-on \u00e9s 50% \u00b110% relat\u00edv p\u00e1ratartalom mellett kell t\u00e1rolni.<\/li>\n\n\n\n<li><strong>\u00a0\u00d6sszehasonl\u00edthat\u00f3k-e a k\u00fcl\u00f6nb\u00f6z\u0151 f\u00f3liat\u00edpusok k\u00f6z\u00f6tt a dart \u00fctk\u00f6z\u00e9s eredm\u00e9nyei?<\/strong><br>Csak hasonl\u00f3 szerkezet\u0171 \u00e9s vastags\u00e1g\u00fa (\u00b125%-en bel\u00fcli) f\u00f3li\u00e1kat szabad \u00f6sszehasonl\u00edtani, mivel az \u00f6sszet\u00e9tel \u00e9s a vastags\u00e1g jelent\u0151sen befoly\u00e1solja az \u00fct\u00e9si teljes\u00edtm\u00e9nyt.<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"<p>Dart Impact Testing of Polyethylene Film per ASTM D1709 Introduction to Dart Impact Testing of Polyethylene Film Polyethylene films are widely used in packaging due to their durability, flexibility, and lightweight characteristics. However, to ensure performance during shipping and handling, understanding their mechanical behavior\u2014particularly under sudden impact\u2014is essential.&nbsp;Dart impact testing of polyethylene film&nbsp;offers a reliable [&#8230;]","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-100","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/www.impacttesting.net\/hu\/wp-json\/wp\/v2\/posts\/100","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.impacttesting.net\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.impacttesting.net\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.impacttesting.net\/hu\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.impacttesting.net\/hu\/wp-json\/wp\/v2\/comments?post=100"}],"version-history":[{"count":2,"href":"https:\/\/www.impacttesting.net\/hu\/wp-json\/wp\/v2\/posts\/100\/revisions"}],"predecessor-version":[{"id":105,"href":"https:\/\/www.impacttesting.net\/hu\/wp-json\/wp\/v2\/posts\/100\/revisions\/105"}],"wp:attachment":[{"href":"https:\/\/www.impacttesting.net\/hu\/wp-json\/wp\/v2\/media?parent=100"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.impacttesting.net\/hu\/wp-json\/wp\/v2\/categories?post=100"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.impacttesting.net\/hu\/wp-json\/wp\/v2\/tags?post=100"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}