{"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\/lt\/standard\/astm-f392\/","title":{"rendered":"ASTM F392"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Lanks\u010di\u0173j\u0173 pakuo\u010di\u0173 gedimai ne visada prasideda nuo matom\u0173 pa\u017eeidim\u0173. Transportavimo, pildymo, sukrovimo ir kasdienio tvarkymo metu barjerin\u0117s pl\u0117vel\u0117s gali patirti pakartotinius susisukimus ir suspaudimus, kurie palaipsniui susilpnina vidines strukt\u016bras. Pakuot\u0117 gali atrodyti nesugadinta, nors barjeriniame sluoksnyje jau susiformavo mikroskopiniai \u012ftr\u016bkimai, pro kuriuos prasiskverbia deguonis, dr\u0117gm\u0117 ar ter\u0161alai. B\u016btent tod\u0117l <strong>ASTM F392<\/strong> bandymai tapo svarbiu lanks\u010di\u0173 barjerini\u0173 med\u017eiag\u0173 vertinimo metodu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Svetain\u0117 <strong>ASTM F392 lenkimo bandymo metodas<\/strong> imituoja mechanin\u012f poveik\u012f, kur\u012f pakavimo med\u017eiagos patiria realiomis naudojimo s\u0105lygomis. Naudojant specializuot\u0105 <strong><a href=\"https:\/\/www.packtests.com\/lt\/product\/gelbo-flex-tester\/\" target=\"_blank\" rel=\"noreferrer noopener\">lankstumo matuoklis<\/a><\/strong>, laboratorijose galima i\u0161matuoti, kaip pl\u0117vel\u0117s, laminatai ir padengtos strukt\u016bros atlaiko pakartotin\u012f lenkim\u0105, ir nustatyti, ar mechaninis nuovargis daro \u012ftak\u0105 barjerin\u0117ms savyb\u0117ms. \u0160is bandymas ypa\u010d vertingas maisto produkt\u0173, medicinini\u0173 ir farmacijos produkt\u0173 pakuo\u010di\u0173 bei kitose srityse, kuriose itin svarbu i\u0161laikyti pakuot\u0117s vientisum\u0105.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201eCell Instruments\u201c gaminamas \u201eGFT Flex Tester\u201c automatizuoja ASTM F392 \u201eGelbo\u201c lenkimo bandymo proced\u016br\u0105, u\u017etikrindamas kontroliuojamus sukimo ir suspaudimo ciklus, skirtus \u012fvertinti atsparum\u0105 lenkimui, ma\u017e\u0173 skylu\u010di\u0173 susidarym\u0105 ir galim\u0105 barjero susid\u0117v\u0117jim\u0105.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Kod\u0117l lanks\u010dioms u\u017etvar\u0173 med\u017eiagoms b\u016btinas \u201eFlex\u201c patvarumo vertinimas<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0160iuolaikiniuose pakuo\u010di\u0173 dizainuose vis da\u017eniau naudojamos lengvos daugiasluoksn\u0117s pl\u0117vel\u0117s, nes jos u\u017etikrina patikim\u0105 apsaug\u0105, o med\u017eiag\u0173 sunaudojimas yra ma\u017eesnis. Ta\u010diau lengvos konstrukcijos gali tapti pa\u017eeid\u017eiamos, kai patiria pakartotinius mechaninius deformavimus.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tipin\u0117 lanksti pakuot\u0117 per savo gyvavimo cikl\u0105 patiria \u012fvairi\u0173 apkrov\u0173:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sulankstymas perdirbimo ir pakavimo operacij\u0173 metu<\/li>\n\n\n\n<li>Suspaudimas transportavimo metu<\/li>\n\n\n\n<li>Vibracija paskirstymo metu<\/li>\n\n\n\n<li>Deformacija sand\u0117liavimo metu ir vartotojui tvarkant prek\u0119<\/li>\n\n\n\n<li>Paketuot\u0173 produkt\u0173 pakartotinis perk\u0117limas<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0160ie \u012ftempiai gali sukelti mikroskopinius defektus:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Aliuminio folijos sluoksniai<\/li>\n\n\n\n<li>Metalizuotos dangos<\/li>\n\n\n\n<li>EVOH barjeriniai sluoksniai<\/li>\n\n\n\n<li>Lipnios s\u0105sajos<\/li>\n\n\n\n<li>Daugiasluoksn\u0117s laminato strukt\u016bros<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tradiciniai barjerini\u0173 savybi\u0173 bandymo metodai leid\u017eia \u012fvertinti med\u017eiagos savybes statin\u0117mis s\u0105lygomis. Ta\u010diau jie gali neatskleisti pa\u017eeidim\u0173, atsiradusi\u0173 d\u0117l pasikartojan\u010di\u0173 mechanini\u0173 judesi\u0173.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u0117l \u0161ios prie\u017easties gamintojai derina barjerini\u0173 savybi\u0173 bandymus su <strong>ASTM F392 lankstumo patvarumo vertinimas<\/strong> siekiant \u012fvertinti, kaip pakuot\u0117 elgiasi po imituot\u0173 tvarkymo apkrov\u0173.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Koki\u0105 informacij\u0105 suteikia ASTM F392 bandymai?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">ASTM F392 bandymo tikslas \u2013 \u012fvertinti lanks\u010di\u0173 barjerini\u0173 med\u017eiag\u0173 atsparum\u0105 lenkimo sukeltiems pa\u017eeidimams.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Lankstumo patvarumo bandymas gali pad\u0117ti in\u017einieriams atsakyti \u012f svarbius klausimus:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ar laminatas i\u0161laikys barjerines savybes po transportavimo?<\/li>\n\n\n\n<li>Ar plonos pl\u0117vel\u0117s strukt\u016broje po pakartotinio lenkimo atsiranda ma\u017e\u0173 skylu\u010di\u0173?<\/li>\n\n\n\n<li>Koks med\u017eiag\u0173 derinys u\u017etikrina didesn\u012f atsparum\u0105 nuovargiui?<\/li>\n\n\n\n<li>Ar nauja danga padidina mechanin\u012f patvarum\u0105?<\/li>\n\n\n\n<li>Kiek lenkimo cikl\u0173 gali atlaikyti pakuot\u0117, kol suma\u017e\u0117ja jos eksploatacin\u0117s savyb\u0117s?<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0160is bandymas ne tik nustato, ar med\u017eiaga l\u016b\u017eta. Jis taip pat \u012fvertina, kaip mechaninis \u012ftempis kei\u010dia pakuot\u0117s konstrukcijos funkcines savybes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tipiniai vertinimo rezultatai apima:<\/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\">Vertinimo kriterijus<\/th><th class=\"has-text-align-center\" data-align=\"center\">Tikslas<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">Skylut\u0117s<\/td><td class=\"has-text-align-center\" data-align=\"center\">Nustatykite d\u0117l lenkimo atsiradusius fizinius pa\u017eeidimus<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\u012etr\u016bkim\u0173 susidarymas<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u012evertinti konstrukcijos atsparum\u0105 nuovargiui<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Deguonies pralaidumo pokytis<\/td><td class=\"has-text-align-center\" data-align=\"center\">Nustatyti barjero nuostolius po lenkimo<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Vandens gar\u0173 pralaidumo pokytis<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u012evertinti apsaugos nuo dr\u0117gm\u0117s savybes<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u0160ie rezultatai padeda pakavimo in\u017einieriams optimizuoti med\u017eiag\u0173 pasirinkim\u0105 ir pakuo\u010di\u0173 dizain\u0105.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u201eGelbo Flex\u201c bandymo metodo supratimas<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Svetain\u0117 <strong>\u201eGelbo Flex\u201c bandymo metodas<\/strong> naudoja kontroliuojam\u0105 mechanin\u012f judes\u012f, kad atkurt\u0173 pasikartojan\u010dias lenkimo s\u0105lygas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Skirtingai nuo paprast\u0173 lenkimo bandym\u0173, \u201eGelbo\u201c lankstumo bandymai apima sukimo ir suspaudimo judesius. Tai leid\u017eia realisti\u0161kiau imituoti \u012ftempius, kuriuos patiria lankstiosios pakuot\u0117s platinimo ir tvarkymo metu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Atliekant bandymus, bandinys yra:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ma\u017edaug <strong>440\u00b0 pasukimas per 90 mm judes\u012f<\/strong><\/li>\n\n\n\n<li>Horizontalus suspaudimo judesys<\/li>\n\n\n\n<li>Pakartotinis va\u017eiavimas dvira\u010diu kontroliuojamu grei\u010diu<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0160is sud\u0117tinis judesys sukelia mechanin\u012f nuovarg\u012f visoje med\u017eiagos strukt\u016broje.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">ASTM F392 proced\u016bra paprastai atliekama:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>45 ciklai per minut\u0119<\/strong><\/li>\n\n\n\n<li>Nustatyti bandinio matmenys<\/li>\n\n\n\n<li>Kontroliuojami lenkimo ciklai pagal bandym\u0173 reikalavimus<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Atlikus bandymus, med\u017eiag\u0105 galima patikrinti tiesiogiai arba \u012fvertinti atliekant papildomus barjerini\u0173 savybi\u0173 matavimus.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Kaip \u201eFlex Tester\u201c atlieka vertinim\u0105 pagal ASTM F392 standart\u0105<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Profesionalas <strong>lankstumo matuoklis<\/strong> automatizuoja pasikartojan\u010dius mechaninius veiksmus, numatytus standarte ASTM F392, ir u\u017etikrina didesn\u012f bandym\u0173 nuoseklum\u0105, palyginti su vertinimu atliekant rankiniu b\u016bdu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tipin\u0117 bandym\u0173 eiga susideda i\u0161 keturi\u0173 pagrindini\u0173 etap\u0173.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">M\u0117gini\u0173 paruo\u0161imas ir montavimas<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Lanks\u010di\u0173 barjer\u0173 bandiniai paruo\u0161iami pagal reikiamus matmenis.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bendrosios m\u0117ginio specifikacijos:<\/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\">Parametras<\/th><th class=\"has-text-align-center\" data-align=\"center\">Vert\u0117<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">Imties dydis<\/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\">Med\u017eiagos tipas<\/td><td class=\"has-text-align-center\" data-align=\"center\">Pl\u0117vel\u0117, laminatas, padengta barjerin\u0117 strukt\u016bra<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Bandinys tvirtai pritvirtintas prie bandymo \u012ftaiso, kad lenkimo metu b\u016bt\u0173 u\u017etikrintas tolygus jud\u0117jimas.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Kontroliuojamas lankstumo ciklas<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0160is prietaisas atlieka u\u017eprogramuotus sukimo ir suspaudimo judesius.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">GFT \u201eFlex\u201c patvarumo bandymo \u012frenginys si\u016blo kelis bandymo re\u017eimus:<\/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\u017eimas<\/th><th class=\"has-text-align-center\" data-align=\"center\">\u201eFlex Cycles\u201c<\/th><th class=\"has-text-align-center\" data-align=\"center\">Parai\u0161ka<\/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\">2700 cikl\u0173<\/td><td class=\"has-text-align-center\" data-align=\"center\">Ilgalaikio patvarumo vertinimas<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">B<\/td><td class=\"has-text-align-center\" data-align=\"center\">900 cikl\u0173<\/td><td class=\"has-text-align-center\" data-align=\"center\">Standartinis na\u0161umo palyginimas<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">C<\/td><td class=\"has-text-align-center\" data-align=\"center\">270 cikl\u0173<\/td><td class=\"has-text-align-center\" data-align=\"center\">Med\u017eiag\u0173 atranka<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">D<\/td><td class=\"has-text-align-center\" data-align=\"center\">20 cikl\u0173<\/td><td class=\"has-text-align-center\" data-align=\"center\">I\u0161samus lankstumo \u012fvertinimas<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">E<\/td><td class=\"has-text-align-center\" data-align=\"center\">20 cikl\u0173<\/td><td class=\"has-text-align-center\" data-align=\"center\">Dalinio lankstumo vertinimas<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u012evair\u016bs ciklo nustatymai leid\u017eia laboratorijoms veiksmingai lyginti med\u017eiagas atliekant mokslinius tyrimus, vykdant kokyb\u0117s kontrol\u0119 ir tikrinant gamyb\u0105.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Pa\u017eeidim\u0173 nustatymas ir veikimo analiz\u0117<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Atlik\u0119 lenkimo bandymus, in\u017einieriai \u012fvertina, ar med\u017eiaga patyr\u0117:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mechaninis \u012ftr\u016bkim\u0173 susidarymas<\/li>\n\n\n\n<li>Barjerinio sluoksnio pa\u017eeidimai<\/li>\n\n\n\n<li>Skylut\u0117s<\/li>\n\n\n\n<li>Padid\u0117j\u0119s u\u017esikr\u0117timo lygis<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Kalbant apie auk\u0161tos barjerin\u0117s savyb\u0117s pakuotes, daugelis laboratorij\u0173 lygina deguonies pralaidum\u0105 (OTR) arba vandens gar\u0173 pralaidum\u0105 (WVTR) prie\u0161 ir po lenkimo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u017dymus padid\u0117jimas rodo, kad mechaninis poveikis suma\u017eino apsaugines savybes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ASTM F392 lenkimo bandymo taikymo sritys<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Lankstusis maisto produkt\u0173 pakavimas<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Maisto produkt\u0173 pakuot\u0117s labai priklauso nuo barjerini\u0173 savybi\u0173, nes deguonis ir dr\u0117gm\u0117 gali tur\u0117ti \u012ftakos:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Skonio i\u0161saugojimas<\/li>\n\n\n\n<li>Produkto \u0161vie\u017eumas<\/li>\n\n\n\n<li>Tinkamumo laikas<\/li>\n\n\n\n<li>Maisto sauga<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Da\u017eniausiai naudojamos sritys:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>U\u017ekand\u017ei\u0173 pakavimo pl\u0117vel\u0117s<\/li>\n\n\n\n<li>Vakuuminiai mai\u0161eliai<\/li>\n\n\n\n<li>Kavos mai\u0161eliai<\/li>\n\n\n\n<li>Retortin\u0117s pakuot\u0117s<\/li>\n\n\n\n<li>\u0160aldyt\u0173 maisto produkt\u0173 pakuot\u0117s<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Standartas ASTM F392 padeda gamintojams pasirinkti laminato strukt\u016bras, kurios i\u0161laiko savo savybes per vis\u0105 platinimo proces\u0105.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Medicinos ir farmacijos pramon\u0117s pakuot\u0117s<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Medicinin\u0117ms pakuot\u0117ms b\u016btina patikima apsauga nuo aplinkos u\u017eter\u0161imo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201eFlex\u201c patvarumo bandymai padeda \u012fvertinti:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Steril\u016bs apsauginiai mai\u0161eliai<\/li>\n\n\n\n<li>Medicinos prietais\u0173 pakuot\u0117s<\/li>\n\n\n\n<li>Farmacin\u0117s apsaugin\u0117s pl\u0117vel\u0117s<\/li>\n\n\n\n<li>\u0160vari\u0173j\u0173 patalp\u0173 pakavimo med\u017eiagos<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">D\u0117l mechaninio nuovargio atsirad\u0119s pakuot\u0117s gedimas gali pakenkti sterilumui, tod\u0117l atsparumas lenkimui tampa svarbiu kokyb\u0117s parametru.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Pramonin\u0117s apsaugin\u0117s pl\u0117vel\u0117s<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Daugelis pramonini\u0173 pl\u0117veli\u0173 turi i\u0161laikyti apsaugines savybes net ir po pakartotinio naudojimo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tarp taikymo sri\u010di\u0173 yra:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Apsaugin\u0117s pl\u0117vel\u0117s<\/li>\n\n\n\n<li>\u017dem\u0117s \u016bkio barjerin\u0117s pl\u0117vel\u0117s<\/li>\n\n\n\n<li>Chemi\u0161kai atspari pakuot\u0117<\/li>\n\n\n\n<li>Statybin\u0117s membranos<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">ASTM F392 bandymai suteikia vertingos informacijos apie ilgalaik\u012f patvarum\u0105.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u201eGFT Flex Tester\u201c: sukurtas naudoti pagal ASTM F392 standart\u0105<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u201eGFT Flex Tester\u201c sukurtas laboratorijoms, kurioms reikalingas tikslus ir pakartojamas lenkimo patvarumo vertinimas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0160i sistema suteikia kelet\u0105 privalum\u0173 atliekant pakavimo med\u017eiag\u0173 bandymus.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Automatin\u0117 PLC valdymo sistema<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Pramonin\u0117 valdymo platforma u\u017etikrina:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Stabilus veikimas<\/li>\n\n\n\n<li>Paprastas parametr\u0173 nustatymas<\/li>\n\n\n\n<li>Pakartojamos bandymo s\u0105lygos<\/li>\n\n\n\n<li>Suma\u017einta operatoriaus \u012ftaka<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Lie\u010diamojo ekrano s\u0105saja leid\u017eia in\u017einieriams greitai sukonfig\u016bruoti bandym\u0173 programas.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Galimyb\u0117 atlikti bandymus keliose stotyse<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">GFT serija palaiko lygiagret\u0173j\u012f testavim\u0105:<\/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\">Modelis<\/th><th class=\"has-text-align-center\" data-align=\"center\">Bandym\u0173 stotys<\/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 stotys<\/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 stotys<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Daugiastacionis darbas padidina laboratorijos na\u0161um\u0105, nes leid\u017eia lyginti kelis m\u0117ginius identi\u0161komis s\u0105lygomis.<\/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\/lt\/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=\"ASTM F392 GFT lankstumo bandymo \u012frenginys\" 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\">Programuojami bandymo re\u017eimai<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Penki i\u0161 anksto nustatyti re\u017eimai leid\u017eia vartotojams atlikti:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Greitas patikrinimas<\/li>\n\n\n\n<li>Lyginamasis med\u017eiag\u0173 vertinimas<\/li>\n\n\n\n<li>I\u0161sam\u016bs patvarumo bandymai<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">D\u0117l \u0161io lankstumo \u0161is prietaisas tinka tiek mokslini\u0173 tyrim\u0173 ir pl\u0117tros laboratorijoms, tiek gamybos kokyb\u0117s kontrolei.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">GFT \u201eFlex\u201c patvarumo bandymo \u012frenginio techniniai duomenys<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Parametras<\/th><th>GFT-02 <a href=\"https:\/\/www.packtests.com\/lt\/product\/gelbo-flex-tester\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u201eFlex\u201c testeris<\/a><\/th><th>GFT-01 <a href=\"https:\/\/www.packtests.com\/lt\/product\/gelbo-flex-tester\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u201eFlex\u201c testeris<\/a><\/th><\/tr><\/thead><tbody><tr><td>Lankstymo kampas<\/td><td>440\u00b0 (90 mm) arba 400\u00b0 (80 mm)<\/td><td>440\u00b0 (90 mm) arba 400\u00b0 (80 mm)<\/td><\/tr><tr><td>Talpa<\/td><td>3,5 N\u00b7m<\/td><td>2,5 N\u00b7m<\/td><\/tr><tr><td>Horizontalus eili\u0161kumas<\/td><td>155 mm arba 80 mm<\/td><td>155 mm arba 80 mm<\/td><\/tr><tr><td>Bandym\u0173 stotys<\/td><td>3<\/td><td>4<\/td><\/tr><tr><td>Imties dydis<\/td><td>280 mm \u00d7 200 mm<\/td><td>280 mm \u00d7 200 mm<\/td><\/tr><tr><td>Maitinimo \u0161altinis<\/td><td>110\u2013220 V<\/td><td>110\u2013220 V<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">ASTM F392 palyginimas su kitais pakuo\u010di\u0173 eksploatacini\u0173 savybi\u0173 bandymais<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Lanks\u010di\u0173 med\u017eiag\u0173 patvarumo bandymai da\u017enai derinami su kitais pakuo\u010di\u0173 vertinimo metodais.<\/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\">Tyrimo metodas<\/th><th>Pagrindinis vertinimas<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">ASTM F392<\/td><td>Lankstumo atsparumo ir mechaninio nuovargio poveikis<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">ASTM D3985<\/td><td>Deguonies pralaidumas<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">ASTM F1249<\/td><td>Vandens gar\u0173 pralaidumo koeficientas<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">ASTM F88<\/td><td>Sandariklio stiprumas<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">ASTM D882<\/td><td>Tempimo savyb\u0117s<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Taikant kelis bandymo metodus galima geriau \u012fvertinti pakuot\u0117s savybes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pavyzd\u017eiui, pagal ASTM F392 standart\u0105 gali paai\u0161k\u0117ti, kad laminatas po lenkimo praranda barjerines savybes, o OTR bandymai leid\u017eia kiekybi\u0161kai \u012fvertinti barjero savybi\u0173 pablog\u0117jimo laipsn\u012f.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Tinkamo ASTM F392 lankstumo bandymo aparato pasirinkimas<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Renkantis lankstumo bandymo sistem\u0105, laboratorijos tur\u0117t\u0173 \u012fvertinti:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ASTM F392 bandym\u0173 atlikimo galimyb\u0117s<\/li>\n\n\n\n<li>Reikaling\u0173 bandymo sto\u010di\u0173 skai\u010dius<\/li>\n\n\n\n<li>Automatizavimo lygis<\/li>\n\n\n\n<li>Tyrimo pakartojamumas<\/li>\n\n\n\n<li>Pavyzd\u017ei\u0173 suderinamumas<\/li>\n\n\n\n<li>B\u016bsimi bandym\u0173 reikalavimai<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Mokslini\u0173 tyrim\u0173 laboratorijose lankstus programavimas leid\u017eia \u012fvertinti naujas med\u017eiag\u0173 strukt\u016bras. Gamybos aplinkose daugiapozicin\u0117s sistemos padidina bandym\u0173 efektyvum\u0105 ir pagerina kokyb\u0117s steb\u0117sen\u0105.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tinkamas ASTM F392 standumo bandymo \u012frenginys leid\u017eia gamintojams nustatyti galimus pakuot\u0117s defektus dar prie\u0161 produktams pateikiant \u012f rink\u0105.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">ASTM F392 lankstumo patvarumo bandymas yra prakti\u0161kas b\u016bdas \u012fvertinti, ar lanks\u010dios barjerin\u0117s med\u017eiagos i\u0161laiko apsaugines savybes po pakartotini\u0173 mechanini\u0173 apkrov\u0173. Imituodami sukimo ir suspaudimo poveik\u012f atliekant \u201eGelbo\u201c lankstumo bandym\u0105, gamintojai gali nustatyti pasl\u0117ptus tr\u016bkumus, pavyzd\u017eiui, smulkias skylutes, \u012ftr\u016bkimus ir barjero savybi\u0173 pablog\u0117jim\u0105, dar prie\u0161 rinkoje pasirodant pakuot\u0117s gedimams.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Patikimas <strong>ASTM F392 lenkimo bandymo \u012frenginys<\/strong> padeda pakavimo in\u017einieriams palyginti med\u017eiag\u0173 strukt\u016bras, optimizuoti laminat\u0173 konstrukcijas ir pagerinti produkt\u0173 apsaug\u0105 transportavimo bei tvarkymo metu. Cell Instruments kompanijos \u201eGFT Flex Durability Tester\u201c \u012frenginys u\u017etikrina automatizuotus, pakartojamus pl\u0117veli\u0173, laminat\u0173 ir padengt\u0173 barjerini\u0173 med\u017eiag\u0173, naudojam\u0173 maisto, medicinos, farmacijos ir pramon\u0117s pakavimo srityse, bandymus.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Derinimas <a href=\"https:\/\/store.astm.org\/f0392_f0392m-23.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">ASTM F392<\/a> Atliekant bandymus, kuriuose vertinamas deguonies pralaidumas, vandens gar\u0173 pralaidumas, tempiamasis stipris ir sandarumo stipris, galima visapusi\u0161kai \u012fvertinti pakuot\u0117s savybes. Tai leid\u017eia gamintojams rinktis patvaresnes med\u017eiagas, tobulinti kokyb\u0117s kontrol\u0117s procesus ir kurti pakuot\u0117s sprendimus, u\u017etikrinan\u010dius didesn\u012f patikimum\u0105 ir ilgesn\u012f galiojimo laik\u0105.<\/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\/lt\/wp-json\/wp\/v2\/standard\/1469","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.packtests.com\/lt\/wp-json\/wp\/v2\/standard"}],"about":[{"href":"https:\/\/www.packtests.com\/lt\/wp-json\/wp\/v2\/types\/standard"}],"version-history":[{"count":4,"href":"https:\/\/www.packtests.com\/lt\/wp-json\/wp\/v2\/standard\/1469\/revisions"}],"predecessor-version":[{"id":1530,"href":"https:\/\/www.packtests.com\/lt\/wp-json\/wp\/v2\/standard\/1469\/revisions\/1530"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.packtests.com\/lt\/wp-json\/wp\/v2\/media\/1472"}],"wp:attachment":[{"href":"https:\/\/www.packtests.com\/lt\/wp-json\/wp\/v2\/media?parent=1469"}],"wp:term":[{"taxonomy":"standard-category","embeddable":true,"href":"https:\/\/www.packtests.com\/lt\/wp-json\/wp\/v2\/standard-category?post=1469"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}