{"id":1440,"date":"2026-07-23T07:24:13","date_gmt":"2026-07-23T07:24:13","guid":{"rendered":"https:\/\/www.packtests.com\/?post_type=standard&#038;p=1440"},"modified":"2026-07-23T07:24:53","modified_gmt":"2026-07-23T07:24:53","slug":"astm-d1922","status":"publish","type":"standard","link":"https:\/\/www.packtests.com\/sk\/standard\/astm-d1922\/","title":{"rendered":"ASTM D1922"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><strong>ASTM D1922<\/strong> je jedn\u00fdm z najroz\u0161\u00edrenej\u0161\u00edch \u0161tandardov na hodnotenie <strong>pevnos\u0165 plastovej f\u00f3lie v \u0165ahu<\/strong> a tenk\u00e9 plastov\u00e9 f\u00f3lie. V odvetviach, ako s\u00fa flexibiln\u00e9 obaly, zdravotn\u00edcke obaly, potravin\u00e1rske obaly, po\u013enohospod\u00e1rstvo a priemyseln\u00e9 f\u00f3lie, je odolnos\u0165 proti pretrhnutiu k\u013e\u00fa\u010dovou mechanickou vlastnos\u0165ou, ktor\u00e1 priamo ovplyv\u0148uje trvanlivos\u0165 v\u00fdrobku, vlastnosti pri manipul\u00e1cii a spo\u013eahlivos\u0165 pri kone\u010dnom pou\u017eit\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Str\u00e1nka <strong>Sk\u00fa\u0161ka pevnosti v trhaniu pod\u013ea Elmendorfa<\/strong> poskytuje r\u00fdchlu, opakovate\u013en\u00fa a \u0161tandardizovan\u00fa met\u00f3du na stanovenie sily potrebnej na roz\u0161\u00edrenie existuj\u00faceho trhl\u00edn v sk\u00fa\u0161obnom kuse. Na rozdiel od \u0165ahovej sk\u00fa\u0161ky, pri ktorej sa meria odolnos\u0165 vo\u010di \u0165ahaniu a\u017e do zlomu, t\u00e1to <strong>Elmendorfova met\u00f3da<\/strong> zameriava sa na \u0161\u00edrenie trhl\u00edn po vykonan\u00ed kontrolovan\u00e9ho po\u010diato\u010dn\u00e9ho rezu. V\u010faka tomu je norma ASTM D1922 obzvl\u00e1\u0161\u0165 cenn\u00e1 pre kontrolu kvality, v\u00fdvoj materi\u00e1lov a porovn\u00e1vanie v\u00fdrobkov.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u010ci u\u017e ide o v\u00fdber obalov\u00fdch f\u00f3li\u00ed, overovanie konzistencie v\u00fdroby alebo porovn\u00e1vanie zlo\u017een\u00ed plastov\u00fdch zmes\u00ed, norma ASTM D1922 pon\u00faka v\u00fdrobcom praktick\u00fd a medzin\u00e1rodne uzn\u00e1van\u00fd pr\u00edstup k meraniu odolnosti proti pretrhnutiu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u010co je norma ASTM D1922?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>ASTM D1922<\/strong> je \u0161tandardn\u00e1 sk\u00fa\u0161obn\u00e1 met\u00f3da na stanovenie odolnosti plastov\u00fdch f\u00f3li\u00ed a tenk\u00fdch pl\u00e1tov proti \u0161\u00edreniu trhl\u00edn met\u00f3dou kyvadla.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e1to norma meria mno\u017estvo energie potrebnej na to, aby kyvadlo pokra\u010dovalo v trhan\u00ed vzorky po vytvoren\u00ed po\u010diato\u010dn\u00e9ho z\u00e1rezu. Strata potenci\u00e1lnej energie po\u010das v\u00fdkyvu kyvadla sa prev\u00e1dza na hodnoty odolnosti proti roztrhnutiu, \u010do laborat\u00f3ri\u00e1m umo\u017e\u0148uje porovn\u00e1va\u0165 materi\u00e1ly za jednotn\u00fdch sk\u00fa\u0161obn\u00fdch podmienok.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e1to met\u00f3da sa stala \u0161tandardom v odvetv\u00ed, preto\u017ee pon\u00faka:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Vynikaj\u00faca opakovate\u013enos\u0165<\/li>\n\n\n\n<li>R\u00fdchle testovacie cykly<\/li>\n\n\n\n<li>Minim\u00e1lny vplyv obsluhy<\/li>\n\n\n\n<li>Spo\u013eahliv\u00e9 porovnanie materi\u00e1lov<\/li>\n\n\n\n<li>Jednoduch\u00fd v\u00fdklad v\u00fdsledkov<\/li>\n<\/ul>\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-image size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"600\" height=\"600\" src=\"https:\/\/www.packtests.com\/wp-content\/uploads\/2026\/07\/SLD-01-tear-testing.webp\" alt=\"ASTM D1922 COF-01 Elemendorfov pr\u00edstroj na sk\u00fa\u0161anie odolnosti proti roztrhnutiu\" class=\"wp-image-1442\" style=\"width:273px;height:auto\" title=\"\" srcset=\"https:\/\/www.packtests.com\/wp-content\/uploads\/2026\/07\/SLD-01-tear-testing.webp 600w, https:\/\/www.packtests.com\/wp-content\/uploads\/2026\/07\/SLD-01-tear-testing-300x300.webp 300w, https:\/\/www.packtests.com\/wp-content\/uploads\/2026\/07\/SLD-01-tear-testing-150x150.webp 150w, https:\/\/www.packtests.com\/wp-content\/uploads\/2026\/07\/SLD-01-tear-testing-12x12.webp 12w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Ke\u010f\u017ee \u0161\u00edrenie trhl\u00edn \u010dasto rozhoduje o tom, \u010di obal pre\u017eije manipul\u00e1ciu alebo sa po\u0161kod\u00ed po\u010das prepravy, norma ASTM D1922 zohr\u00e1va d\u00f4le\u017eit\u00fa \u00falohu pri zabezpe\u010dovan\u00ed kvality obalov.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Pre\u010do je d\u00f4le\u017eit\u00e1 odolnos\u0165 plastovej f\u00f3lie proti pretrhnutiu?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Str\u00e1nka <strong>pevnos\u0165 plastovej f\u00f3lie v \u0165ahu<\/strong> ovplyv\u0148uje v\u00fdkonnos\u0165 v\u00fdrobkov po\u010das v\u00fdroby, prepravy, skladovania a pou\u017e\u00edvania spotrebite\u013emi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Medzi pr\u00edklady patria:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u017diados\u0165<\/th><th>Pre\u010do je odolnos\u0165 proti roztrhnutiu d\u00f4le\u017eit\u00e1<\/th><\/tr><\/thead><tbody><tr><td>Balenie potrav\u00edn<\/td><td>Zabr\u00e1\u0148te n\u00e1hodn\u00e9mu po\u0161kodeniu obalu po\u010das plnenia a prepravy<\/td><\/tr><tr><td>Lek\u00e1rske obaly<\/td><td>A\u017e do otvorenia zachovajte integritu sterilnej bari\u00e9ry<\/td><\/tr><tr><td>Priemyseln\u00e9 f\u00f3lie<\/td><td>Odolnos\u0165 vo\u010di roztrhnutiu po\u010das in\u0161tal\u00e1cie a pri n\u00e1ro\u010dnej manipul\u00e1cii<\/td><\/tr><tr><td>Po\u013enohospod\u00e1rske f\u00f3lie<\/td><td>Odol\u00e1va vplyvom prostredia a mechanick\u00e9mu za\u0165a\u017eeniu<\/td><\/tr><tr><td>F\u00f3lie na natahovanie a zmr\u0161\u0165ovanie<\/td><td>Zn\u00ed\u017eenie po\u0161kodenia pri balen\u00ed na palety<\/td><\/tr><tr><td>Spotrebite\u013esk\u00e9 obaly<\/td><td>Umo\u017e\u0148uje kontrolovan\u00e9 otv\u00e1ranie bez katastrof\u00e1lneho roztrhnutia<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00edzka odolnos\u0165 proti pretrhnutiu m\u00f4\u017ee ma\u0165 za n\u00e1sledok:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Po\u0161kodenie v\u00fdrobku<\/li>\n\n\n\n<li>\u00danik obsahu balenia<\/li>\n\n\n\n<li>Zv\u00fd\u0161en\u00e9 mno\u017estvo odpadu<\/li>\n\n\n\n<li>S\u0165a\u017enosti z\u00e1kazn\u00edkov<\/li>\n\n\n\n<li>Vy\u0161\u0161ie v\u00fdrobn\u00e9 n\u00e1klady<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Norma ASTM D1922 pom\u00e1ha v\u00fdrobcom optimalizova\u0165 materi\u00e1ly e\u0161te predt\u00fdm, ako k t\u00fdmto poruch\u00e1m d\u00f4jde.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Vysvetlenie sk\u00fa\u0161ky pevnosti v trhaniu pod\u013ea Elmendorfa<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Str\u00e1nka <strong>Sk\u00fa\u0161ka pevnosti v trhaniu pod\u013ea Elmendorfa<\/strong> t\u00fato met\u00f3du p\u00f4vodne vyvinul Armin Elmendorf a dodnes patr\u00ed medzi najspo\u013eahlivej\u0161ie met\u00f3dy na hodnotenie \u0161\u00edrenia trhl\u00edn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Namiesto merania sily potrebnej na vytvorenie nov\u00e9ho trhlinky sa pri tomto teste meria energia potrebn\u00e1 na udr\u017eanie u\u017e existuj\u00facej trhlinky.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Z\u00e1kladn\u00fd princ\u00edp je jednoduch\u00fd:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Vzorka sa priprav\u00ed so \u0161tandardizovanou \u0161trbinou.<\/li>\n\n\n\n<li>Vzorka je pevne upnut\u00e1.<\/li>\n\n\n\n<li>Kalibrovan\u00e9 kyvadlo sa uvo\u013en\u00ed.<\/li>\n\n\n\n<li>Kyvadlo roztrhne zvy\u0161n\u00fa vzorku.<\/li>\n\n\n\n<li>Strata energie sa premie\u0148a na odolnos\u0165 proti roztrhnutiu.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Vzh\u013eadom na to, \u017ee pohyb kyvadla je presne riaden\u00fd, <strong>Elmendorfova met\u00f3da<\/strong> poskytuje v\u00fdsledky s vysokou opakovate\u013enos\u0165ou, vhodn\u00e9 pre kontrolu kvality v laborat\u00f3riu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Sk\u00fa\u0161obn\u00fd postup pod\u013ea normy ASTM D1922<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Typick\u00fd <strong>ASTM D1922<\/strong> Test prebieha pod\u013ea nieko\u013ek\u00fdch \u0161tandardizovan\u00fdch krokov.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Pr\u00edprava vzoriek<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Obd\u013a\u017enikov\u00e9 vzorky sa vyrez\u00e1vaj\u00fa pod\u013ea \u0161tandardn\u00fdch rozmerov.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Presn\u00fd rezac\u00ed n\u00f4\u017e vytvor\u00ed rez, ktor\u00fd kon\u010d\u00ed pribli\u017ene <strong>43 mm od protilehl\u00e9ho okraja<\/strong>, \u010d\u00edm sa zabezpe\u010d\u00ed, \u017ee ka\u017ed\u00fd vzorka za\u010d\u00edna identick\u00fdm odtrhnut\u00edm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Spr\u00e1vna pr\u00edprava vzorky je nevyhnutn\u00e1, preto\u017ee nekonzistentn\u00e1 geometria \u0161trbiny m\u00f4\u017ee v\u00fdrazne ovplyvni\u0165 v\u00fdsledky.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Upevnenie vzorky<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vzorka je pevne uchyten\u00e1 medzi dvoma svorkami.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Rovnomern\u00fd up\u00ednac\u00ed tlak zabra\u0148uje preklz\u00e1vaniu po\u010das testovania a zvy\u0161uje opakovate\u013enos\u0165.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Modern\u00fd <strong>pr\u00edstroj na sk\u00fa\u0161anie odolnosti proti roztrhnutiu<\/strong> V t\u00fdchto syst\u00e9moch sa \u010dasto vyu\u017e\u00edva pneumatick\u00e9 up\u00ednanie, aby sa zn\u00ed\u017eila variabilita obsluhy.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Uvo\u013enenie kyvadla<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kyvadlo sa uvo\u013en\u00ed automaticky.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ke\u010f sa pohybuje cez vzorku, roz\u0161iruje trhlinu a z\u00e1rove\u0148 str\u00e1ca \u010das\u0165 svojej potenci\u00e1lnej energie.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e1to strata energie priamo s\u00favis\u00ed s odolnos\u0165ou materi\u00e1lu proti pretrhnutiu.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">V\u00fdpo\u010det v\u00fdsledku<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Pr\u00edstroj automaticky prev\u00e1dza nameran\u00fa energiu na hodnoty odolnosti proti pretrhnutiu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00e4\u010d\u0161ina modern\u00fdch testerov vypo\u010d\u00edtava:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>V\u00fdsledky jednotliv\u00fdch testov<\/li>\n\n\n\n<li>Priemern\u00e1 pevnos\u0165 v trhaniu<\/li>\n\n\n\n<li>\u0160tatistick\u00e1 anal\u00fdza<\/li>\n\n\n\n<li>\u0160tandardn\u00e1 odch\u00fdlka<\/li>\n\n\n\n<li>V pr\u00edpade potreby sa vykonaj\u00fa viacer\u00e9 prevody jednotiek<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Automatizovan\u00e9 v\u00fdpo\u010dty eliminuj\u00fa chyby vypl\u00fdvaj\u00face z ru\u010dn\u00e9ho zad\u00e1vania \u00fadajov a zvy\u0161uj\u00fa efekt\u00edvnos\u0165 laborat\u00f3ria.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ak\u00e9 materi\u00e1ly je mo\u017en\u00e9 hodnoti\u0165 pod\u013ea normy ASTM D1922?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Norma ASTM D1922 je vhodn\u00e1 pre mno\u017estvo pru\u017en\u00fdch materi\u00e1lov.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Medzi typick\u00e9 materi\u00e1ly patria:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Polyetyl\u00e9n (PE)<\/li>\n\n\n\n<li>Polypropyl\u00e9n (PP)<\/li>\n\n\n\n<li>PET f\u00f3lie<\/li>\n\n\n\n<li>PVC f\u00f3lie<\/li>\n\n\n\n<li>Bari\u00e9rov\u00e9 f\u00f3lie<\/li>\n\n\n\n<li>Laminovan\u00e9 f\u00f3lie<\/li>\n\n\n\n<li>Metalizovan\u00e9 f\u00f3lie<\/li>\n\n\n\n<li>Pru\u017en\u00e9 kompozitn\u00e9 obaly<\/li>\n\n\n\n<li>Plastov\u00e9 f\u00f3lie<\/li>\n\n\n\n<li>Tenk\u00e9 priemyseln\u00e9 f\u00f3lie<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Hoci s\u00fa tieto met\u00f3dy ur\u010den\u00e9 predov\u0161etk\u00fdm pre plastov\u00e9 f\u00f3lie, podobn\u00e9 princ\u00edpy trhania kyvadlom sa v r\u00e1mci r\u00f4znych medzin\u00e1rodn\u00fdch noriem uplat\u0148uj\u00fa aj na papier, netkan\u00e9 materi\u00e1ly a text\u00edlie.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Odvetvia, ktor\u00e9 vyu\u017e\u00edvaj\u00fa normu ASTM D1922<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Mnoh\u00e9 odvetvia sa spoliehaj\u00fa na spo\u013eahliv\u00e9 \u00fadaje o odolnosti proti pretrhnutiu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Medzi be\u017en\u00fdch pou\u017e\u00edvate\u013eov patria:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>V\u00fdrobcovia flexibiln\u00fdch obalov<\/li>\n\n\n\n<li>Spolo\u010dnosti zaoberaj\u00face sa balen\u00edm zdravotn\u00edckych pom\u00f4cok<\/li>\n\n\n\n<li>Dod\u00e1vatelia farmaceutick\u00fdch obalov<\/li>\n\n\n\n<li>V\u00fdrobcovia obalov na potraviny<\/li>\n\n\n\n<li>V\u00fdrobcovia plastov\u00fdch f\u00f3li\u00ed<\/li>\n\n\n\n<li>V\u00fdrobcovia po\u013enohospod\u00e1rskych f\u00f3li\u00ed<\/li>\n\n\n\n<li>Priemyseln\u00e9 zariadenia na vyvol\u00e1vanie filmov<\/li>\n\n\n\n<li>V\u00fdskumn\u00e9 laborat\u00f3ri\u00e1<\/li>\n\n\n\n<li>Univerzity<\/li>\n\n\n\n<li>Nez\u00e1visl\u00e9 testovacie laborat\u00f3ri\u00e1<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Pre tieto organiz\u00e1cie norma ASTM D1922 sl\u00fa\u017ei ako podklad pre kontrolu prich\u00e1dzaj\u00faceho materi\u00e1lu, tak aj pre valid\u00e1ciu hotov\u00fdch v\u00fdrobkov.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Faktory ovplyv\u0148uj\u00face v\u00fdsledky slzn\u00e9ho testu<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Na nameran\u00fa hodnotu m\u00f4\u017ee vpl\u00fdva\u0165 viacero premenn\u00fdch <strong>pevnos\u0165 plastovej f\u00f3lie v \u0165ahu<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Medzi ne patria:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Hr\u00fabka filmu<\/li>\n\n\n\n<li>Molekul\u00e1rna orient\u00e1cia polym\u00e9ru<\/li>\n\n\n\n<li>Smer extrudovania (MD vs. TD)<\/li>\n\n\n\n<li>Zlo\u017eenie \u017eivice<\/li>\n\n\n\n<li>Pr\u00edsady<\/li>\n\n\n\n<li>Teplota<\/li>\n\n\n\n<li>Vlhkos\u0165<\/li>\n\n\n\n<li>Kvalita pr\u00edpravy vzoriek<\/li>\n\n\n\n<li>V\u00fdber kapacity kyvadla<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Udr\u017eiavanie kontrolovan\u00fdch laborat\u00f3rnych podmienok je nevyhnutn\u00e9 na z\u00edskanie relevantn\u00fdch a reprodukovate\u013en\u00fdch \u00fadajov.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ASTM D1922 vs. ISO 6383-1<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Mnoh\u00e9 medzin\u00e1rodn\u00e9 laborat\u00f3ri\u00e1 vykon\u00e1vaj\u00fa sk\u00fa\u0161ky pod\u013ea noriem ASTM aj ISO.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Funkcia<\/th><th>ASTM D1922<\/th><th>ISO 6383-1<\/th><\/tr><\/thead><tbody><tr><td>Princ\u00edp testu<\/td><td>Trhlina sp\u00f4soben\u00e1 \u0161\u00edren\u00edm kyvadla<\/td><td>Trhlina sp\u00f4soben\u00e1 \u0161\u00edren\u00edm kyvadla<\/td><\/tr><tr><td>Sk\u00fa\u0161obn\u00e1 met\u00f3da<\/td><td>Elmendorfova met\u00f3da<\/td><td>Elmendorfova met\u00f3da<\/td><\/tr><tr><td>Hlavn\u00e9 pou\u017eitie<\/td><td>Plastov\u00e1 f\u00f3lia a tenk\u00e9 plachty<\/td><td>Plastov\u00e9 f\u00f3lie a plachty<\/td><\/tr><tr><td>V\u00fdsledok<\/td><td>Odolnos\u0165 proti \u0161\u00edreniu trhl\u00edn<\/td><td>Odolnos\u0165 proti \u0161\u00edreniu trhl\u00edn<\/td><\/tr><tr><td>Medzin\u00e1rodn\u00e9 pou\u017eitie<\/td><td>Severn\u00e1 Amerika<\/td><td>Medzin\u00e1rodn\u00e9 trhy<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Obe normy vyu\u017e\u00edvaj\u00fa takmer identick\u00e9 testovacie postupy, \u010do glob\u00e1lnym v\u00fdrobcom u\u013eah\u010duje porovn\u00e1vanie v\u00fdkonnosti v\u00fdrobkov na r\u00f4znych trhoch.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">V\u00fdber pr\u00edstroja na meranie odolnosti proti pretrhnutiu<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Spo\u013eahliv\u00fd <strong><a href=\"https:\/\/www.packtests.com\/sk\/product\/elmendorf-tearing-tester\/\" target=\"_blank\" rel=\"noreferrer noopener\">pr\u00edstroj na sk\u00fa\u0161anie odolnosti proti roztrhnutiu<\/a><\/strong> mal by zabezpe\u010di\u0165 presn\u00fd pohyb kyvadla, stabiln\u00e9 upnutie vzorky a automatizovan\u00e9 spracovanie \u00fadajov.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Medzi d\u00f4le\u017eit\u00e9 funkcie patria:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Priemyseln\u00e9 riadenie pomocou PLC<\/li>\n\n\n\n<li>Dotykov\u00e9 rozhranie<\/li>\n\n\n\n<li>Automatick\u00e9 uvo\u013enenie kyvadla<\/li>\n\n\n\n<li>Pneumatick\u00e9 upnutie vzorky<\/li>\n\n\n\n<li>R\u00f4zne nosnosti kyvadiel<\/li>\n\n\n\n<li>Overenie kalibr\u00e1cie<\/li>\n\n\n\n<li>\u0160tatistick\u00e1 anal\u00fdza<\/li>\n\n\n\n<li>Mo\u017enos\u0165 exportu \u00fadajov<\/li>\n\n\n\n<li>Volite\u013en\u00fd profesion\u00e1lny softv\u00e9r<\/li>\n\n\n\n<li>Vysledovate\u013enos\u0165 v laborat\u00f3riu<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tieto funkcie pom\u00e1haj\u00fa zabezpe\u010di\u0165 konzistentn\u00e9 v\u00fdsledky a z\u00e1rove\u0148 obmedzuj\u00fa vplyv obsluhy.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Cell Instruments SLD-01 Pr\u00edstroj na sk\u00fa\u0161anie odolnosti proti pretrhnutiu<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Str\u00e1nka <strong>SLD-01 <a href=\"https:\/\/www.packtests.com\/sk\/product\/elmendorf-tearing-tester\/\" target=\"_blank\" rel=\"noreferrer noopener\">Pr\u00edstroj na meranie odolnosti proti pretrhnutiu<\/a><\/strong> od spolo\u010dnosti Cell Instruments je ur\u010den\u00fd na \u0161tandardizovan\u00e9 sk\u00fa\u0161ky odolnosti proti roztrhnutiu kyvadlom v s\u00falade s <strong>ASTM D1922<\/strong> a <strong>ISO 6383-1<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Medzi k\u013e\u00fa\u010dov\u00e9 funkcie patria:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Prev\u00e1dzka riaden\u00e1 programovate\u013en\u00fdm logick\u00fdm automatom (PLC) s intuit\u00edvnym dotykov\u00fdm displejom HMI<\/li>\n\n\n\n<li>Pneumatick\u00e9 up\u00ednanie vzoriek pre vy\u0161\u0161iu opakovate\u013enos\u0165<\/li>\n\n\n\n<li>Automatick\u00e9 uvo\u013enenie kyvadla s cie\u013eom minimalizova\u0165 vplyv obsluhy<\/li>\n\n\n\n<li>R\u00f4zne nosnosti kyvadiel: <strong>200, 400, 800, 1600, 3200 a 6400 gf<\/strong><\/li>\n\n\n\n<li>Vstavan\u00e1 kontrola kalibra\u010dn\u00fdch z\u00e1va\u017e\u00ed<\/li>\n\n\n\n<li>Automatick\u00e9 \u0161tatistick\u00e9 v\u00fdpo\u010dty<\/li>\n\n\n\n<li>Volite\u013en\u00e1 komunik\u00e1cia cez rozhranie RS-232 a mikrotla\u010diare\u0148<\/li>\n\n\n\n<li>Volite\u013en\u00fd profesion\u00e1lny softv\u00e9r pre pokro\u010dil\u00e9 vytv\u00e1ranie spr\u00e1v a spr\u00e1vu \u00fadajov<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tento syst\u00e9m je vhodn\u00fd pre laborat\u00f3ri\u00e1 kontroly kvality, oddelenia v\u00fdskumu a v\u00fdvoja, v\u00fdrobcov obalov, v\u00fdrobcov f\u00f3li\u00ed a nez\u00e1visl\u00e9 sk\u00fa\u0161obn\u00e9 laborat\u00f3ri\u00e1, ktor\u00e9 potrebuj\u00fa spo\u013eahliv\u00e9 merania roztrhovej pevnosti pri \u0161\u00edren\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Osved\u010den\u00e9 postupy pri sk\u00fa\u0161kach pod\u013ea normy ASTM D1922<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Aby ste dosiahli \u010do najvy\u0161\u0161iu presnos\u0165 testovania:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pred sk\u00fa\u0161kou pripravte vzorky.<\/li>\n\n\n\n<li>Na pr\u00edpravu vzoriek pou\u017e\u00edvajte ostr\u00e9 rezn\u00e9 n\u00e1stroje.<\/li>\n\n\n\n<li>Vyberte spr\u00e1vnu nosnos\u0165 kyvadla.<\/li>\n\n\n\n<li>Vykonajte testy v smere strojovej osi (MD) aj v prie\u010dnom smere (TD).<\/li>\n\n\n\n<li>Vykonajte dostato\u010dn\u00fd po\u010det opakovan\u00ed, aby bola zabezpe\u010den\u00e1 \u0161tatistick\u00e1 spo\u013eahlivos\u0165.<\/li>\n\n\n\n<li>Pr\u00edstroj pravidelne kalibrujte.<\/li>\n\n\n\n<li>Udr\u017eujte v laborat\u00f3riu st\u00e1lu teplotu a vlhkos\u0165.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Dodr\u017eiavanie t\u00fdchto postupov zvy\u0161uje opakovate\u013enos\u0165 a zaru\u010duje spo\u013eahliv\u00e9 porovnanie medzi v\u00fdrobn\u00fdmi \u0161ar\u017eami.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Z\u00e1ver<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/store.astm.org\/d1922-23.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">ASTM D1922<\/a> na\u010falej zost\u00e1va preferovan\u00fdm \u0161tandardom v odvetv\u00ed na hodnotenie <strong>pevnos\u0165 plastovej f\u00f3lie v \u0165ahu<\/strong> s vyu\u017eit\u00edm osved\u010den\u00e9ho <strong>Sk\u00fa\u0161ka pevnosti v trhaniu pod\u013ea Elmendorfa<\/strong>. Je to jednoduch\u00e9, ale z\u00e1rove\u0148 ve\u013emi dobre opakovate\u013en\u00e9 <strong>Elmendorfova met\u00f3da<\/strong> umo\u017e\u0148uje v\u00fdrobcom presne pos\u00fadi\u0165 \u0161\u00edrenie trhl\u00edn, porovna\u0165 vlastnosti materi\u00e1lov, optimalizova\u0165 kon\u0161trukciu v\u00fdrobkov a posilni\u0165 kontrolu kvality.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V kombin\u00e1cii s modern\u00fdm <strong>pr\u00edstroj na sk\u00fa\u0161anie odolnosti proti roztrhnutiu<\/strong> ako napr\u00edklad Cell Instruments <strong>SLD-01 Pr\u00edstroj na sk\u00fa\u0161anie odolnosti proti pretrhnutiu<\/strong>, laborat\u00f3ri\u00e1 m\u00f4\u017eu dosiahnu\u0165 efekt\u00edvne testovacie postupy, spo\u013eahliv\u00e9 \u00fadaje a v\u00e4\u010d\u0161iu istotu v s\u00favislosti s vlastnos\u0165ami materi\u00e1lov v oblasti balenia, zdravotn\u00edctva, priemyslu a spotrebn\u00e9ho tovaru.<\/p>","protected":false},"excerpt":{"rendered":"<p>ASTM D1922 is one of the most widely adopted standards for evaluating the tear strength of plastic film and thin plastic sheeting. In industries such as flexible packaging, medical packaging, food packaging, agriculture, and industrial films, tear resistance is a critical mechanical property that directly affects product durability, handling performance, and end-use reliability. The Elmendorf [&hellip;]<\/p>","protected":false},"featured_media":1442,"parent":0,"template":"","meta":{"_acf_changed":false},"standard-category":[],"class_list":["post-1440","standard","type-standard","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.packtests.com\/sk\/wp-json\/wp\/v2\/standard\/1440","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.packtests.com\/sk\/wp-json\/wp\/v2\/standard"}],"about":[{"href":"https:\/\/www.packtests.com\/sk\/wp-json\/wp\/v2\/types\/standard"}],"version-history":[{"count":4,"href":"https:\/\/www.packtests.com\/sk\/wp-json\/wp\/v2\/standard\/1440\/revisions"}],"predecessor-version":[{"id":1600,"href":"https:\/\/www.packtests.com\/sk\/wp-json\/wp\/v2\/standard\/1440\/revisions\/1600"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.packtests.com\/sk\/wp-json\/wp\/v2\/media\/1442"}],"wp:attachment":[{"href":"https:\/\/www.packtests.com\/sk\/wp-json\/wp\/v2\/media?parent=1440"}],"wp:term":[{"taxonomy":"standard-category","embeddable":true,"href":"https:\/\/www.packtests.com\/sk\/wp-json\/wp\/v2\/standard-category?post=1440"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}