{"id":1469,"date":"2026-07-21T04:12:04","date_gmt":"2026-07-21T04:12:04","guid":{"rendered":"https:\/\/www.packtests.com\/?post_type=standard&#038;p=1469"},"modified":"2026-07-21T04:12:32","modified_gmt":"2026-07-21T04:12:32","slug":"astm-f392","status":"publish","type":"standard","link":"https:\/\/www.packtests.com\/cs\/standard\/astm-f392\/","title":{"rendered":"ASTM F392"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Poruchy flexibiln\u00edch obal\u016f neza\u010d\u00ednaj\u00ed v\u017edy viditeln\u00fdm po\u0161kozen\u00edm. B\u011bhem p\u0159epravy, pln\u011bn\u00ed, stohov\u00e1n\u00ed a ka\u017edodenn\u00ed manipulace mohou bari\u00e9rov\u00e9 f\u00f3lie podl\u00e9hat opakovan\u00e9mu kroucen\u00ed a stla\u010dov\u00e1n\u00ed, co\u017e postupn\u011b oslabuje jejich vnit\u0159n\u00ed strukturu. Obal m\u016f\u017ee vypadat neporu\u0161en\u00fd, zat\u00edmco uvnit\u0159 bari\u00e9rov\u00e9 vrstvy se ji\u017e vytvo\u0159ily mikroskopick\u00e9 trhliny, kter\u00fdmi pronik\u00e1 kysl\u00edk, vlhkost nebo ne\u010distoty. Proto <strong>ASTM F392<\/strong> Testov\u00e1n\u00ed se stalo d\u016fle\u017eitou metodou hodnocen\u00ed pru\u017en\u00fdch bari\u00e9rov\u00fdch materi\u00e1l\u016f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Na str\u00e1nk\u00e1ch <strong>Zku\u0161ebn\u00ed metoda ASTM F392 pro zkou\u0161ku ohybem<\/strong> simuluje mechanick\u00e9 nam\u00e1h\u00e1n\u00ed, kter\u00e9mu jsou obalov\u00e9 materi\u00e1ly vystaveny p\u0159i re\u00e1ln\u00e9m pou\u017e\u00edv\u00e1n\u00ed. Pomoc\u00ed specializovan\u00e9ho <strong><a href=\"https:\/\/www.packtests.com\/cs\/product\/gelbo-flex-tester\/\" target=\"_blank\" rel=\"noreferrer noopener\">p\u0159\u00edstroj na zkou\u0161en\u00ed ohybu<\/a><\/strong>, mohou laborato\u0159e m\u011b\u0159it, jak f\u00f3lie, lamin\u00e1ty a potahovan\u00e9 materi\u00e1ly odol\u00e1vaj\u00ed opakovan\u00e9mu oh\u00fdb\u00e1n\u00ed, a zjistit, zda mechanick\u00e1 \u00fanava ovliv\u0148uje bari\u00e9rov\u00e9 vlastnosti. Tato zkou\u0161ka je obzvl\u00e1\u0161t\u011b u\u017eite\u010dn\u00e1 v p\u0159\u00edpad\u011b obal\u016f na potraviny, zdravotnick\u00fdch obal\u016f, farmaceutick\u00fdch obal\u016f a dal\u0161\u00edch aplikac\u00ed, kde je zachov\u00e1n\u00ed integrity obalu z\u00e1sadn\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159\u00edstroj GFT Flex Tester od spole\u010dnosti Cell Instruments automatizuje zkou\u0161ku ohybov\u00e9 pevnosti podle normy ASTM F392 (Gelbo), p\u0159i\u010dem\u017e zaji\u0161\u0165uje \u0159\u00edzen\u00e9 cykly kroucen\u00ed a stla\u010dov\u00e1n\u00ed za \u00fa\u010delem posouzen\u00ed odolnosti proti ohybu, vzniku d\u00edrky a p\u0159\u00edpadn\u00e9ho zhor\u0161en\u00ed bari\u00e9rov\u00fdch vlastnost\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Pro\u010d je u pru\u017en\u00fdch bari\u00e9rov\u00fdch materi\u00e1l\u016f nutn\u00e9 posoudit jejich odolnost p\u0159i ohybu<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">V modern\u00edch n\u00e1vrz\u00edch obal\u016f se st\u00e1le \u010dast\u011bji vyu\u017e\u00edvaj\u00ed lehk\u00e9 v\u00edcevrstv\u00e9 f\u00f3lie, proto\u017ee poskytuj\u00ed \u00fa\u010dinnou ochranu p\u0159i ni\u017e\u0161\u00ed spot\u0159eb\u011b materi\u00e1lu. Lehk\u00e9 konstrukce v\u0161ak mohou b\u00fdt n\u00e1chyln\u00e9 k po\u0161kozen\u00ed, jsou-li vystaveny opakovan\u00fdm mechanick\u00fdm deformac\u00edm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Typick\u00fd flexibiln\u00ed obal je b\u011bhem sv\u00e9ho \u017eivotn\u00edho cyklu vystaven r\u016fzn\u00fdm nam\u00e1h\u00e1n\u00edm:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Skl\u00e1d\u00e1n\u00ed b\u011bhem zpracov\u00e1n\u00ed a balen\u00ed<\/li>\n\n\n\n<li>Stla\u010den\u00ed b\u011bhem p\u0159epravy<\/li>\n\n\n\n<li>Vibrace b\u011bhem distribuce<\/li>\n\n\n\n<li>Ohnut\u00ed b\u011bhem skladov\u00e1n\u00ed a p\u0159i manipulaci ze strany spot\u0159ebitele<\/li>\n\n\n\n<li>Opakovan\u00e9 p\u0159esuny balen\u00fdch v\u00fdrobk\u016f<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tyto nap\u011bt\u00ed mohou zp\u016fsobit vznik mikroskopick\u00fdch vad v:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Vrstvy hlin\u00edkov\u00e9 f\u00f3lie<\/li>\n\n\n\n<li>Metalizovan\u00e9 n\u00e1t\u011bry<\/li>\n\n\n\n<li>Bari\u00e9rov\u00e9 vrstvy z EVOH<\/li>\n\n\n\n<li>Lepic\u00ed rozhran\u00ed<\/li>\n\n\n\n<li>V\u00edcevrstv\u00e9 lamin\u00e1tov\u00e9 konstrukce<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tradi\u010dn\u00ed metody zkou\u0161en\u00ed bari\u00e9rov\u00fdch vlastnost\u00ed m\u011b\u0159\u00ed vlastnosti materi\u00e1lu za statick\u00fdch podm\u00ednek. Nemus\u00ed v\u0161ak odhalit po\u0161kozen\u00ed zp\u016fsoben\u00e9 opakovan\u00fdm mechanick\u00fdm nam\u00e1h\u00e1n\u00edm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Z tohoto d\u016fvodu v\u00fdrobci kombinuj\u00ed testov\u00e1n\u00ed bari\u00e9rov\u00fdch vlastnost\u00ed s <strong>Hodnocen\u00ed odolnosti proti ohybu podle normy ASTM F392<\/strong> aby bylo mo\u017en\u00e9 zjistit, jak se obal chov\u00e1 po simulovan\u00e9m nam\u00e1h\u00e1n\u00ed p\u0159i manipulaci.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Jak\u00e9 informace poskytuje zkou\u0161ka podle normy ASTM F392?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u00da\u010delem zkou\u0161ek podle normy ASTM F392 je posoudit odolnost pru\u017en\u00fdch bari\u00e9rov\u00fdch materi\u00e1l\u016f proti po\u0161kozen\u00ed zp\u016fsoben\u00e9mu ohybem.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Zkou\u0161ka odolnosti ohybem m\u016f\u017ee in\u017een\u00fdr\u016fm pomoci zodpov\u011bd\u011bt d\u016fle\u017eit\u00e9 ot\u00e1zky:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Zachov\u00e1 si lamin\u00e1t po p\u0159eprav\u011b sv\u00e9 bari\u00e9rov\u00e9 vlastnosti?<\/li>\n\n\n\n<li>Vznikaj\u00ed v tenkovrstv\u00e9 struktu\u0159e po opakovan\u00e9m oh\u00fdb\u00e1n\u00ed d\u00edrky?<\/li>\n\n\n\n<li>Kter\u00e1 kombinace materi\u00e1l\u016f zaji\u0161\u0165uje lep\u0161\u00ed odolnost proti \u00fanav\u011b?<\/li>\n\n\n\n<li>Zlep\u0161uje nov\u00fd povlak mechanickou odolnost?<\/li>\n\n\n\n<li>Kolik cykl\u016f oh\u00fdb\u00e1n\u00ed vydr\u017e\u00ed obal, ne\u017e dojde ke sn\u00ed\u017een\u00ed jeho funk\u010dnosti?<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tento test neslou\u017e\u00ed pouze k tomu, aby se zjistilo, zda se materi\u00e1l zlom\u00ed. M\u00edsto toho hodnot\u00ed, jak mechanick\u00e9 nam\u00e1h\u00e1n\u00ed ovliv\u0148uje funk\u010dn\u00ed vlastnosti konstrukce obalu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mezi typick\u00e9 v\u00fdsledky hodnocen\u00ed pat\u0159\u00ed:<\/p>\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\">Hodnot\u00edc\u00ed polo\u017eka<\/th><th class=\"has-text-align-center\" data-align=\"center\">\u00da\u010del<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">D\u00edry po d\u00edrk\u00e1ch<\/td><td class=\"has-text-align-center\" data-align=\"center\">Zjist\u011bte fyzick\u00e9 po\u0161kozen\u00ed zp\u016fsoben\u00e9 ohybem<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Vznik trhlin<\/td><td class=\"has-text-align-center\" data-align=\"center\">Posoudit \u00fanavovou odolnost konstrukce<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Zm\u011bna propustnosti pro kysl\u00edk<\/td><td class=\"has-text-align-center\" data-align=\"center\">Stanovte ztr\u00e1ty v izolaci po ohybu<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Zm\u011bna propustnosti pro vodn\u00ed p\u00e1ru<\/td><td class=\"has-text-align-center\" data-align=\"center\">Vyhodnotit \u00fa\u010dinnost ochrany proti vlhkosti<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Tyto v\u00fdsledky pom\u00e1haj\u00ed konstrukt\u00e9r\u016fm obal\u016f optimalizovat v\u00fdb\u011br materi\u00e1l\u016f a konstrukci obal\u016f.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Porozum\u011bn\u00ed zku\u0161ebn\u00ed metod\u011b Gelbo Flex<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Na str\u00e1nk\u00e1ch <strong>metoda zkou\u0161ky ohybov\u00e9 tuhosti Gelbo Flex<\/strong> vyu\u017e\u00edv\u00e1 \u0159\u00edzen\u00fd mechanick\u00fd pohyb k napodoben\u00ed opakovan\u00fdch ohybov\u00fdch podm\u00ednek.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Na rozd\u00edl od jednoduch\u00fdch zkou\u0161ek ohybem kombinuje zkou\u0161ka ohybov\u00e9 pevnosti Gelbo pohyby kroucen\u00ed a stla\u010den\u00ed. T\u00edm se dosahuje realisti\u010dt\u011bj\u0161\u00ed simulace nam\u00e1h\u00e1n\u00ed, kter\u00e9mu jsou pru\u017en\u00e9 obaly vystaveny b\u011bhem distribuce a manipulace.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u011bhem zkou\u0161ky je vzorek podroben:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>P\u0159ibli\u017en\u011b <strong>Zkroucen\u00ed o 440\u00b0 p\u0159i posunu o 90 mm<\/strong><\/li>\n\n\n\n<li>Horizont\u00e1ln\u00ed kompresn\u00ed pohyb<\/li>\n\n\n\n<li>Opakovan\u00e1 j\u00edzda na kole p\u0159i regulovan\u00e9 rychlosti<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tento kombinovan\u00fd pohyb zp\u016fsobuje mechanickou \u00fanavu v cel\u00e9 struktu\u0159e materi\u00e1lu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Postup podle normy ASTM F392 se obvykle prov\u00e1d\u00ed v:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>45 cykl\u016f za minutu<\/strong><\/li>\n\n\n\n<li>Stanoven\u00e9 rozm\u011bry vzorku<\/li>\n\n\n\n<li>\u0158\u00edzen\u00e9 cykly oh\u00fdb\u00e1n\u00ed v souladu s po\u017eadavky na zkou\u0161en\u00ed<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Po proveden\u00ed zkou\u0161ek lze materi\u00e1l zkontrolovat p\u0159\u00edmo nebo vyhodnotit pomoc\u00ed dal\u0161\u00edch m\u011b\u0159en\u00ed bari\u00e9rov\u00fdch vlastnost\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Jak p\u0159\u00edstroj Flex Tester prov\u00e1d\u00ed hodnocen\u00ed podle normy ASTM F392<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Profesion\u00e1l <strong>p\u0159\u00edstroj na zkou\u0161en\u00ed ohybu<\/strong> automatizuje opakovan\u00e9 mechanick\u00e9 \u00fakony po\u017eadovan\u00e9 normou ASTM F392 a zvy\u0161uje konzistentnost zkou\u0161ek ve srovn\u00e1n\u00ed s ru\u010dn\u00edm vyhodnocen\u00edm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Typick\u00fd postup testov\u00e1n\u00ed zahrnuje \u010dty\u0159i hlavn\u00ed f\u00e1ze.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">P\u0159\u00edprava vzork\u016f a instalace<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vzorky pru\u017en\u00fdch bari\u00e9r se p\u0159ipravuj\u00ed podle po\u017eadovan\u00fdch rozm\u011br\u016f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Obecn\u00e1 specifikace vzorku:<\/p>\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\">Parametr<\/th><th class=\"has-text-align-center\" data-align=\"center\">Hodnota<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">Velikost vzorku<\/td><td class=\"has-text-align-center\" data-align=\"center\">280 mm \u00d7 200 mm<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Typ materi\u00e1lu<\/td><td class=\"has-text-align-center\" data-align=\"center\">F\u00f3lie, lamin\u00e1t, pota\u017een\u00e1 bari\u00e9rov\u00e1 struktura<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Vzorek je pevn\u011b upevn\u011bn na zku\u0161ebn\u00edm p\u0159\u00edpravku, aby byl zaji\u0161t\u011bn rovnom\u011brn\u00fd pohyb p\u0159i oh\u00fdb\u00e1n\u00ed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Cyklick\u00e9 st\u0159\u00edd\u00e1n\u00ed \u0159\u00edzen\u00e9 pru\u017enosti<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tento p\u0159\u00edstroj prov\u00e1d\u00ed naprogramovan\u00e9 kroutiv\u00e9 a tlakov\u00e9 pohyby.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Zku\u0161ebn\u00ed za\u0159\u00edzen\u00ed GFT Flex Durability Tester nab\u00edz\u00ed n\u011bkolik re\u017eim\u016f zkou\u0161en\u00ed:<\/p>\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\">Re\u017eim<\/th><th class=\"has-text-align-center\" data-align=\"center\">Flex Cycles<\/th><th class=\"has-text-align-center\" data-align=\"center\">\u017d\u00e1dost<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">A<\/td><td class=\"has-text-align-center\" data-align=\"center\">2 700 cykl\u016f<\/td><td class=\"has-text-align-center\" data-align=\"center\">Hodnocen\u00ed dlouhodob\u00e9 \u017eivotnosti<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">B<\/td><td class=\"has-text-align-center\" data-align=\"center\">900 cykl\u016f<\/td><td class=\"has-text-align-center\" data-align=\"center\">Srovn\u00e1n\u00ed standardn\u00edho v\u00fdkonu<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">C<\/td><td class=\"has-text-align-center\" data-align=\"center\">270 cykl\u016f<\/td><td class=\"has-text-align-center\" data-align=\"center\">T\u0159\u00edd\u011bn\u00ed materi\u00e1lu<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">D<\/td><td class=\"has-text-align-center\" data-align=\"center\">20 cykl\u016f<\/td><td class=\"has-text-align-center\" data-align=\"center\">Kompletn\u00ed vyhodnocen\u00ed pru\u017enosti<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">E<\/td><td class=\"has-text-align-center\" data-align=\"center\">20 cykl\u016f<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u010c\u00e1ste\u010dn\u00e9 vyhodnocen\u00ed ohybu<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00edky r\u016fzn\u00fdm nastaven\u00edm cyklu mohou laborato\u0159e efektivn\u011b porovn\u00e1vat materi\u00e1ly v r\u00e1mci v\u00fdzkumu, kontroly kvality a ov\u011b\u0159ov\u00e1n\u00ed v\u00fdroby.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Detekce po\u0161kozen\u00ed a anal\u00fdza v\u00fdkonu<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Po zkou\u0161ce ohybem in\u017een\u00fd\u0159i posuzuj\u00ed, zda u materi\u00e1lu do\u0161lo k:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mechanick\u00e9 prask\u00e1n\u00ed<\/li>\n\n\n\n<li>Po\u0161kozen\u00ed bari\u00e9rov\u00e9 vrstvy<\/li>\n\n\n\n<li>D\u00edry po d\u00edrk\u00e1ch<\/li>\n\n\n\n<li>Zv\u00fd\u0161en\u00e1 m\u00edra p\u0159enosu<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">U obal\u016f s vysokou bari\u00e9rou mnoho laborato\u0159\u00ed porovn\u00e1v\u00e1 m\u00edru propustnosti kysl\u00edku (OTR) nebo m\u00edru propustnosti vodn\u00ed p\u00e1ry (WVTR) p\u0159ed a po ohybu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00fdrazn\u00fd n\u00e1r\u016fst nazna\u010duje, \u017ee mechanick\u00e9 nam\u00e1h\u00e1n\u00ed sn\u00ed\u017eilo ochrannou \u00fa\u010dinnost.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Vyu\u017eit\u00ed zkou\u0161ek ohybem podle normy ASTM F392<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Flexibiln\u00ed obaly na potraviny<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Balen\u00ed potravin do zna\u010dn\u00e9 m\u00edry z\u00e1vis\u00ed na bari\u00e9rov\u00fdch vlastnostech, proto\u017ee kysl\u00edk a vlhkost mohou ovlivnit:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Zachov\u00e1n\u00ed chuti<\/li>\n\n\n\n<li>\u010cerstvost v\u00fdrobk\u016f<\/li>\n\n\n\n<li>Doba trvanlivosti<\/li>\n\n\n\n<li>Bezpe\u010dnost potravin<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Mezi b\u011b\u017en\u00e9 oblasti pou\u017eit\u00ed pat\u0159\u00ed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>F\u00f3lie na balen\u00ed snack\u016f<\/li>\n\n\n\n<li>Vakuov\u00e9 s\u00e1\u010dky<\/li>\n\n\n\n<li>S\u00e1\u010dky na k\u00e1vu<\/li>\n\n\n\n<li>Balen\u00ed v retortov\u00fdch obalech<\/li>\n\n\n\n<li>Balen\u00ed mra\u017een\u00fdch potravin<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Norma ASTM F392 pom\u00e1h\u00e1 v\u00fdrobc\u016fm vyb\u00edrat lamin\u00e1tov\u00e9 konstrukce, kter\u00e9 si zachov\u00e1vaj\u00ed sv\u00e9 vlastnosti po celou dobu distribuce.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Obaly pro zdravotnictv\u00ed a farmaceutick\u00fd pr\u016fmysl<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">L\u00e9ka\u0159sk\u00e9 obaly vy\u017eaduj\u00ed spolehlivou ochranu p\u0159ed kontaminac\u00ed z vn\u011bj\u0161\u00edho prost\u0159ed\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Zkou\u0161ky odolnosti materi\u00e1lu Flex umo\u017e\u0148uj\u00ed posoudit:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Steriln\u00ed bari\u00e9rov\u00e9 s\u00e1\u010dky<\/li>\n\n\n\n<li>Balen\u00ed zdravotnick\u00fdch prost\u0159edk\u016f<\/li>\n\n\n\n<li>Farmaceutick\u00e9 ochrann\u00e9 f\u00f3lie<\/li>\n\n\n\n<li>Balic\u00ed materi\u00e1ly pro \u010dist\u00e9 prostory<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Porucha obalu zp\u016fsoben\u00e1 mechanickou \u00fanavou m\u016f\u017ee ohrozit sterilitu, a proto je odolnost proti ohybu d\u016fle\u017eit\u00fdm parametrem kvality.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Pr\u016fmyslov\u00e9 bari\u00e9rov\u00e9 f\u00f3lie<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Mnoh\u00e9 pr\u016fmyslov\u00e9 f\u00f3lie mus\u00ed zachovat svou ochrannou funkci i p\u0159i opakovan\u00e9 manipulaci.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mezi oblasti pou\u017eit\u00ed pat\u0159\u00ed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ochrann\u00e9 f\u00f3lie<\/li>\n\n\n\n<li>Zem\u011bd\u011blsk\u00e9 bari\u00e9rov\u00e9 f\u00f3lie<\/li>\n\n\n\n<li>Obal odoln\u00fd v\u016f\u010di chemik\u00e1li\u00edm<\/li>\n\n\n\n<li>Stavebn\u00ed membr\u00e1ny<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Zkou\u0161ka podle normy ASTM F392 poskytuje cenn\u00e9 informace o dlouhodob\u00e9 trvanlivosti.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">GFT Flex Tester: Ur\u010den\u00fd pro aplikace podle normy ASTM F392<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159\u00edstroj GFT Flex Tester byl vyvinut pro laborato\u0159e, kter\u00e9 pot\u0159ebuj\u00ed prov\u00e1d\u011bt p\u0159esn\u00e9 a opakovateln\u00e9 hodnocen\u00ed odolnosti proti ohybu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tento syst\u00e9m nab\u00edz\u00ed \u0159adu v\u00fdhod p\u0159i testov\u00e1n\u00ed obalov\u00fdch materi\u00e1l\u016f.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Automatizovan\u00fd \u0159\u00eddic\u00ed syst\u00e9m s PLC<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Pr\u016fmyslov\u00e1 \u0159\u00eddic\u00ed platforma nab\u00edz\u00ed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Stabiln\u00ed provoz<\/li>\n\n\n\n<li>Jednoduch\u00e9 nastaven\u00ed parametr\u016f<\/li>\n\n\n\n<li>Opakovateln\u00e9 zku\u0161ebn\u00ed podm\u00ednky<\/li>\n\n\n\n<li>Omezen\u00fd vliv obsluhy<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00edky dotykov\u00e9mu rozhran\u00ed mohou in\u017een\u00fd\u0159i rychle nastavit testovac\u00ed programy.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Mo\u017enost testov\u00e1n\u00ed na v\u00edce stanic\u00edch<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0158ada GFT podporuje paraleln\u00ed testov\u00e1n\u00ed:<\/p>\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\">Model<\/th><th class=\"has-text-align-center\" data-align=\"center\">Zku\u0161ebn\u00ed stanice<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">GFT-01<\/td><td class=\"has-text-align-center\" data-align=\"center\">4 stanice<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">GFT-02<\/td><td class=\"has-text-align-center\" data-align=\"center\">3 stanice<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Provoz s v\u00edce stanicemi zvy\u0161uje efektivitu laborato\u0159e t\u00edm, \u017ee umo\u017e\u0148uje srovn\u00e1n\u00ed v\u00edce vzork\u016f za identick\u00fdch podm\u00ednek.<\/p>\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 aligncenter size-full is-resized\"><a href=\"https:\/\/www.packtests.com\/cs\/product\/gelbo-flex-tester\/\"><img fetchpriority=\"high\" decoding=\"async\" width=\"600\" height=\"600\" src=\"https:\/\/www.packtests.com\/wp-content\/uploads\/2026\/07\/ASTM-F392-gft-flex-tester.webp\" alt=\"Zku\u0161ebn\u00ed za\u0159\u00edzen\u00ed ASTM F392 pro m\u011b\u0159en\u00ed ohybov\u00e9 pevnosti GFT\" class=\"wp-image-1472\" style=\"width:246px;height:auto\" title=\"\" srcset=\"https:\/\/www.packtests.com\/wp-content\/uploads\/2026\/07\/ASTM-F392-gft-flex-tester.webp 600w, https:\/\/www.packtests.com\/wp-content\/uploads\/2026\/07\/ASTM-F392-gft-flex-tester-300x300.webp 300w, https:\/\/www.packtests.com\/wp-content\/uploads\/2026\/07\/ASTM-F392-gft-flex-tester-150x150.webp 150w, https:\/\/www.packtests.com\/wp-content\/uploads\/2026\/07\/ASTM-F392-gft-flex-tester-12x12.webp 12w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Programovateln\u00e9 re\u017eimy testov\u00e1n\u00ed<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">P\u011bt p\u0159ednastaven\u00fdch re\u017eim\u016f umo\u017e\u0148uje u\u017eivatel\u016fm prov\u00e1d\u011bt:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Rychl\u00e9 prov\u011b\u0159en\u00ed<\/li>\n\n\n\n<li>Srovn\u00e1vac\u00ed hodnocen\u00ed materi\u00e1l\u016f<\/li>\n\n\n\n<li>Roz\u0161\u00ed\u0159en\u00e9 zkou\u0161ky \u017eivotnosti<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00edky t\u00e9to flexibilit\u011b je tento p\u0159\u00edstroj vhodn\u00fd jak pro v\u00fdzkumn\u00e9 a v\u00fdvojov\u00e9 laborato\u0159e, tak pro kontrolu kvality ve v\u00fdrob\u011b.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Technick\u00e9 specifikace p\u0159\u00edstroje GFT Flex pro zkou\u0161en\u00ed odolnosti<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Parametr<\/th><th>GFT-02 <a href=\"https:\/\/www.packtests.com\/cs\/product\/gelbo-flex-tester\/\" target=\"_blank\" rel=\"noreferrer noopener\">Tester pru\u017enosti<\/a><\/th><th>GFT-01 <a href=\"https:\/\/www.packtests.com\/cs\/product\/gelbo-flex-tester\/\" target=\"_blank\" rel=\"noreferrer noopener\">Tester pru\u017enosti<\/a><\/th><\/tr><\/thead><tbody><tr><td>\u00dahel ohybu<\/td><td>440\u00b0 (90 mm) nebo 400\u00b0 (80 mm)<\/td><td>440\u00b0 (90 mm) nebo 400\u00b0 (80 mm)<\/td><\/tr><tr><td>Kapacita<\/td><td>3,5 N\u00b7m<\/td><td>2,5 N\u00b7m<\/td><\/tr><tr><td>Vodorovn\u00fd zdvih<\/td><td>155 mm nebo 80 mm<\/td><td>155 mm nebo 80 mm<\/td><\/tr><tr><td>Zku\u0161ebn\u00ed stanice<\/td><td>3<\/td><td>4<\/td><\/tr><tr><td>Velikost vzorku<\/td><td>280 mm \u00d7 200 mm<\/td><td>280 mm \u00d7 200 mm<\/td><\/tr><tr><td>Nap\u00e1jen\u00ed<\/td><td>110\u2013220 V<\/td><td>110\u2013220 V<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Norma ASTM F392 ve srovn\u00e1n\u00ed s jin\u00fdmi zkou\u0161kami vlastnost\u00ed obal\u016f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Zkou\u0161ky odolnosti flexibiln\u00edch obal\u016f se \u010dasto kombinuj\u00ed s dal\u0161\u00edmi metodami hodnocen\u00ed obal\u016f.<\/p>\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\">Zku\u0161ebn\u00ed metoda<\/th><th>Hlavn\u00ed hodnocen\u00ed<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">ASTM F392<\/td><td>Vliv pru\u017en\u00e9ho odporu a mechanick\u00e9 \u00fanavy<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">ASTM D3985<\/td><td>M\u00edra propustnosti kysl\u00edku<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">ASTM F1249<\/td><td>Rychlost p\u0159enosu vodn\u00ed p\u00e1ry<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">ASTM F88<\/td><td>Pevnost t\u011bsn\u011bn\u00ed<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">ASTM D882<\/td><td>Vlastnosti p\u0159i tahu<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Pou\u017eit\u00ed v\u00edce zku\u0161ebn\u00edch metod umo\u017e\u0148uje komplexn\u011bj\u0161\u00ed pochopen\u00ed vlastnost\u00ed obal\u016f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nap\u0159\u00edklad norma ASTM F392 m\u016f\u017ee odhalit, \u017ee lamin\u00e1t po ohybu ztr\u00e1c\u00ed bari\u00e9rov\u00e9 vlastnosti, zat\u00edmco zkou\u0161ka OTR kvantifikuje m\u00edru zhor\u0161en\u00ed t\u011bchto vlastnost\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">V\u00fdb\u011br spr\u00e1vn\u00e9ho p\u0159\u00edstroje pro zkou\u0161en\u00ed ohybu podle normy ASTM F392<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159i v\u00fdb\u011bru syst\u00e9mu pro zkou\u0161en\u00ed ohybem by laborato\u0159e m\u011bly posoudit:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Schopnost prov\u00e1d\u011bt zkou\u0161ky podle normy ASTM F392<\/li>\n\n\n\n<li>Po\u010det pot\u0159ebn\u00fdch testovac\u00edch stanic<\/li>\n\n\n\n<li>\u00darove\u0148 automatizace<\/li>\n\n\n\n<li>Opakovatelnost testov\u00e1n\u00ed<\/li>\n\n\n\n<li>Kompatibilita vzork\u016f<\/li>\n\n\n\n<li>Budouc\u00ed po\u017eadavky na testov\u00e1n\u00ed<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ve v\u00fdzkumn\u00fdch laborato\u0159\u00edch umo\u017e\u0148uje flexibiln\u00ed programov\u00e1n\u00ed vyhodnocov\u00e1n\u00ed nov\u00fdch materi\u00e1lov\u00fdch struktur. Ve v\u00fdrobn\u00edch prost\u0159ed\u00edch pak v\u00edcestanicov\u00e9 syst\u00e9my zvy\u0161uj\u00ed efektivitu testov\u00e1n\u00ed a zlep\u0161uj\u00ed monitorov\u00e1n\u00ed kvality.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vhodn\u00fd p\u0159\u00edstroj pro zkou\u0161en\u00ed ohybov\u00e9 pevnosti podle normy ASTM F392 umo\u017e\u0148uje v\u00fdrobc\u016fm odhalit potenci\u00e1ln\u00ed z\u00e1vady obal\u016f je\u0161t\u011b p\u0159edt\u00edm, ne\u017e se v\u00fdrobky dostanou na trh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Zkou\u0161ka odolnosti proti ohybu podle normy ASTM F392 p\u0159edstavuje praktick\u00fd zp\u016fsob, jak posoudit, zda si pru\u017en\u00e9 bari\u00e9rov\u00e9 materi\u00e1ly zachovaj\u00ed sv\u00e9 ochrann\u00e9 vlastnosti i po opakovan\u00e9m mechanick\u00e9m nam\u00e1h\u00e1n\u00ed. Simulac\u00ed kroucen\u00ed a stla\u010den\u00ed pomoc\u00ed zkou\u0161ky ohybem Gelbo mohou v\u00fdrobci odhalit skryt\u00e9 slabiny, jako jsou d\u00edrky, praskliny a zhor\u0161en\u00ed bari\u00e9rov\u00fdch vlastnost\u00ed, je\u0161t\u011b p\u0159edt\u00edm, ne\u017e dojde k selh\u00e1n\u00ed obal\u016f na trhu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Spolehliv\u00fd <strong>Zku\u0161ebn\u00ed za\u0159\u00edzen\u00ed pro m\u011b\u0159en\u00ed ohybov\u00e9 pevnosti podle normy ASTM F392<\/strong> pom\u00e1h\u00e1 in\u017een\u00fdr\u016fm v oboru balen\u00ed porovn\u00e1vat struktury materi\u00e1l\u016f, optimalizovat konstrukci lamin\u00e1t\u016f a zlep\u0161ovat ochranu v\u00fdrobk\u016f b\u011bhem p\u0159epravy a manipulace. P\u0159\u00edstroj GFT Flex Durability Tester od spole\u010dnosti Cell Instruments umo\u017e\u0148uje automatizovan\u00e9 a opakovateln\u00e9 testov\u00e1n\u00ed f\u00f3li\u00ed, lamin\u00e1t\u016f a potahovan\u00fdch bari\u00e9rov\u00fdch materi\u00e1l\u016f pou\u017e\u00edvan\u00fdch v potravin\u00e1\u0159sk\u00fdch, zdravotnick\u00fdch, farmaceutick\u00fdch a pr\u016fmyslov\u00fdch obalov\u00fdch aplikac\u00edch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kombinace <a href=\"https:\/\/store.astm.org\/f0392_f0392m-23.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">ASTM F392<\/a> Testov\u00e1n\u00ed zahrnuj\u00edc\u00ed hodnocen\u00ed propustnosti kysl\u00edku, propustnosti vodn\u00ed p\u00e1ry, pevnosti v tahu a pevnosti spoje umo\u017e\u0148uje z\u00edskat ucelen\u00fd p\u0159ehled o vlastnostech obalu. D\u00edky tomu mohou v\u00fdrobci volit odoln\u011bj\u0161\u00ed materi\u00e1ly, zdokonalovat procesy kontroly kvality a vyv\u00edjet obalov\u00e1 \u0159e\u0161en\u00ed s vy\u0161\u0161\u00ed spolehlivost\u00ed a lep\u0161\u00ed ochranou trvanlivosti v\u00fdrobk\u016f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Flexible packaging failures do not always begin with visible damage. During transportation, filling, stacking, and daily handling, barrier films can experience repeated twisting and compression that gradually weaken internal structures. A package may look intact while microscopic cracks have already formed inside the barrier layer, allowing oxygen, moisture, or contaminants to pass through. This is [&hellip;]<\/p>","protected":false},"featured_media":1472,"parent":0,"template":"","meta":{"_acf_changed":false},"standard-category":[64],"class_list":["post-1469","standard","type-standard","status-publish","has-post-thumbnail","hentry","standard-category-astm"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.packtests.com\/cs\/wp-json\/wp\/v2\/standard\/1469","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.packtests.com\/cs\/wp-json\/wp\/v2\/standard"}],"about":[{"href":"https:\/\/www.packtests.com\/cs\/wp-json\/wp\/v2\/types\/standard"}],"version-history":[{"count":4,"href":"https:\/\/www.packtests.com\/cs\/wp-json\/wp\/v2\/standard\/1469\/revisions"}],"predecessor-version":[{"id":1530,"href":"https:\/\/www.packtests.com\/cs\/wp-json\/wp\/v2\/standard\/1469\/revisions\/1530"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.packtests.com\/cs\/wp-json\/wp\/v2\/media\/1472"}],"wp:attachment":[{"href":"https:\/\/www.packtests.com\/cs\/wp-json\/wp\/v2\/media?parent=1469"}],"wp:term":[{"taxonomy":"standard-category","embeddable":true,"href":"https:\/\/www.packtests.com\/cs\/wp-json\/wp\/v2\/standard-category?post=1469"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}