{"id":6695,"date":"2025-06-12T15:15:43","date_gmt":"2025-06-12T07:15:43","guid":{"rendered":"https:\/\/www.qualitester.com\/?page_id=6695"},"modified":"2025-06-12T15:17:41","modified_gmt":"2025-06-12T07:17:41","slug":"iso-7765-1","status":"publish","type":"page","link":"https:\/\/www.qualitester.com\/lt\/standards\/iso-7765-1\/","title":{"rendered":"ISO 7765-1"},"content":{"rendered":"<h1 style=\"text-align: center;\" data-start=\"370\" data-end=\"882\"><small>ISO 776\u20131<\/small><\/h1>\n<h1 style=\"text-align: center;\" data-start=\"370\" data-end=\"882\">\u201eDart\u201c sm\u016bgio bandymas<\/h1>\n<h2 data-start=\"410\" data-end=\"426\">\u012evadas<\/h2>\n<p data-start=\"428\" data-end=\"977\">Pakuo\u010di\u0173 ir plastikin\u0117s pl\u0117vel\u0117s pramon\u0117je atsparumas sm\u016bgiams yra vienas i\u0161 svarbiausi\u0173 eksploatacini\u0173 parametr\u0173. <em data-start=\"527\" data-end=\"539\">ISO 7765-1<\/em> nustato standartizuot\u0105 bandymo metod\u0105, skirt\u0105 \u012fvertinti <strong data-start=\"594\" data-end=\"619\">sm\u016bgio l\u016b\u017eio energija<\/strong> i\u0161 plastikin\u0117s pl\u0117vel\u0117s ir lak\u0161tini\u0173 med\u017eiag\u0173, naudojant <strong data-start=\"664\" data-end=\"699\">laisvo kritimo str\u0117li\u0173 sm\u016bgio bandymo \u012frenginys<\/strong>.<\/p>\n<h2 data-start=\"984\" data-end=\"1028\">ISO 7765-1 standarto ir jo paskirties supratimas<\/h2>\n<p data-start=\"1030\" data-end=\"1396\"><em data-start=\"1030\" data-end=\"1042\">ISO 7765-1<\/em> yra tarptautinis standartas, kuriame apibr\u0117\u017eti du bandymo metodai\u2014<strong data-start=\"1104\" data-end=\"1116\">A metodas<\/strong> ir <strong data-start=\"1121\" data-end=\"1133\">B metodas<\/strong>\u2014siekiant nustatyti energij\u0105, reikaling\u0105, kad \u012fvykt\u0173 gedimas <strong data-start=\"1190\" data-end=\"1218\">plastikin\u0117s pl\u0117vel\u0117s ir lak\u0161tai<\/strong> kurios storis yra ma\u017eesnis nei 1 mm. \u0160ie metodai skirti imituoti s\u0105lygas, kuriomis pl\u0117vel\u0117s gali patirti mechanin\u012f poveik\u012f jas tvarkant, gabenant ar galutiniam naudojimui.<\/p>\n<ul>\n<li data-start=\"1400\" data-end=\"1466\"><strong data-start=\"1400\" data-end=\"1412\">A metodas<\/strong>: Naudojama 38 mm pusrutulio formos str\u0117l\u0117, paleista i\u0161 0,66 m auk\u0161\u010dio.<\/li>\n<li data-start=\"1469\" data-end=\"1535\"><strong data-start=\"1469\" data-end=\"1481\">B metodas<\/strong>: Naudojamas 50 mm pusrutulio formos str\u0117l\u0117, numesta i\u0161 1,50 m auk\u0161\u010dio.<\/li>\n<\/ul>\n<p data-start=\"1537\" data-end=\"1691\">Abu metodai skirti statisti\u0161kai nustatyti str\u0117l\u0117s mas\u0119, kuri sukelia 50% bandom\u0173j\u0173 m\u0117gini\u0173 gedim\u0105 \u2013 \u0161is dydis vadinamas <strong data-start=\"1667\" data-end=\"1690\">sm\u016bgio gedimo mas\u0117<\/strong>.<\/p>\n<h2 data-start=\"1698\" data-end=\"1751\">Plastikin\u0117s pl\u0117vel\u0117s atsparumo sm\u016bgiams bandymas su \u201eDart\u201c: kod\u0117l tai svarbu<\/h2>\n<p data-start=\"1753\" data-end=\"1823\">Svetain\u0117 <strong data-start=\"1757\" data-end=\"1794\">plastikin\u0117s pl\u0117vel\u0117s atsparumo sm\u016bgiams bandymas su dartais<\/strong> teikia b\u016btinus duomenis:<\/p>\n<ul>\n<li data-start=\"1827\" data-end=\"1884\">Vertinimas <strong data-start=\"1837\" data-end=\"1856\">filmo patvarumas<\/strong> pakuot\u0117ms.<\/li>\n<li data-start=\"1887\" data-end=\"1965\">Med\u017eiagos kokyb\u0117s nukrypim\u0173, pavyzd\u017eiui, \u0161tampo \u017eymi\u0173 ar ne\u0161varum\u0173, nustatymas.<\/li>\n<li data-start=\"1968\" data-end=\"2050\">Skirting\u0173 gamybos partij\u0173 ar tiek\u0117j\u0173 pl\u0117veli\u0173 eksploatacini\u0173 savybi\u0173 palyginimas.<\/li>\n<\/ul>\n<p data-start=\"2052\" data-end=\"2276\">\u0160is bandymas yra ypa\u010d vertingas taikant <strong data-start=\"2105\" data-end=\"2160\">medicinin\u0117s pakuot\u0117s, maisto apsauga, vaistai<\/strong>, ir <strong data-start=\"2166\" data-end=\"2186\">pramoniniai filmai<\/strong>, kur atsparumas sm\u016bgiams tiesiogiai lemia produkto saugum\u0105 ir vartotoj\u0173 pasitenkinim\u0105.<\/p>\n<h2 data-start=\"2283\" data-end=\"2342\">Laisvo kritimo str\u0117li\u0173 sm\u016bgio bandymo \u012frenginys: pagrindin\u0117 \u012frangos ap\u017evalga<\/h2>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignright wp-image-6697 size-medium\" src=\"https:\/\/www.qualitester.com\/wp-content\/uploads\/2025\/06\/ISO-7765-1-Dart-Impact-Test-for-Plastic-Film-232x300.webp\" alt=\"ISO 7765-1. Plastikin\u0117s pl\u0117vel\u0117s atsparumo sm\u016bgiams su str\u0117le bandymas\" width=\"232\" height=\"300\" srcset=\"https:\/\/www.qualitester.com\/wp-content\/uploads\/2025\/06\/ISO-7765-1-Dart-Impact-Test-for-Plastic-Film-232x300.webp 232w, https:\/\/www.qualitester.com\/wp-content\/uploads\/2025\/06\/ISO-7765-1-Dart-Impact-Test-for-Plastic-Film-9x12.webp 9w, https:\/\/www.qualitester.com\/wp-content\/uploads\/2025\/06\/ISO-7765-1-Dart-Impact-Test-for-Plastic-Film-600x777.webp 600w, https:\/\/www.qualitester.com\/wp-content\/uploads\/2025\/06\/ISO-7765-1-Dart-Impact-Test-for-Plastic-Film.webp 610w\" sizes=\"(max-width: 232px) 100vw, 232px\" \/><\/p>\n<p data-start=\"2344\" data-end=\"2555\">Norint tiksliai atlikti \u0161\u012f bandym\u0105, reikalingas patikimas <strong data-start=\"2396\" data-end=\"2431\">laisvo kritimo str\u0117li\u0173 sm\u016bgio bandymo \u012frenginys<\/strong> kuris atitinka ISO 7765-1 specifikacijas. \u0160is <strong data-start=\"2474\" data-end=\"2501\">\u201eCell Instruments\u201c FDT-01<\/strong> yra puikus pasirinkimas \u0161iam tikslui. Jo savyb\u0117s:<\/p>\n<ul>\n<li data-start=\"2559\" data-end=\"2629\">Tikslumas <strong data-start=\"2569\" data-end=\"2601\">elektromagnetinis str\u0117li\u0173 i\u0161metimas<\/strong> kad kritimo auk\u0161tis b\u016bt\u0173 pastovus.<\/li>\n<li data-start=\"2632\" data-end=\"2694\">Reguliuojamos str\u0117li\u0173 antgaliai ir svareliai abiem <strong data-start=\"2675\" data-end=\"2693\">A ir B metodai<\/strong>.<\/li>\n<li data-start=\"2697\" data-end=\"2772\">Valdomas pneumatiniu b\u016bdu <strong data-start=\"2722\" data-end=\"2741\">fiksavimo sistema<\/strong> siekiant kuo labiau suma\u017einti m\u0117ginio pasislinkim\u0105.<\/li>\n<li data-start=\"2775\" data-end=\"2847\">Integruotas <strong data-start=\"2786\" data-end=\"2813\">duomen\u0173 surinkimo sistema<\/strong> automatiniam rezultat\u0173 skai\u010diavimui.<\/li>\n<\/ul>\n<p data-start=\"2849\" data-end=\"2994\">FDT-01 leid\u017eia gamintojams ir laboratorijoms <strong data-start=\"2902\" data-end=\"2924\">optimizuoti bandymus<\/strong>, <strong data-start=\"2926\" data-end=\"2948\">suma\u017einti \u017emogi\u0161k\u0173j\u0173 klaid\u0173 skai\u010di\u0173<\/strong>, ir u\u017etikrinti, kad rezultatai atitikt\u0173 ISO standartus.<\/p>\n<h2 data-start=\"3001\" data-end=\"3047\">ISO 7765-1 bandymo proced\u016bra: \u017eingsnis po \u017eingsnio<\/h2>\n<ol data-start=\"3049\" data-end=\"4111\">\n<li data-start=\"3049\" data-end=\"3235\">\n<p data-start=\"3052\" data-end=\"3235\"><strong data-start=\"3052\" data-end=\"3074\">M\u0117ginio paruo\u0161imas<\/strong><br data-start=\"3074\" data-end=\"3077\" \/>I\u0161 plastikin\u0117s pl\u0117vel\u0117s i\u0161kirpkite ne ma\u017eiau kaip 30 bandini\u0173, u\u017etikrinant vienod\u0105 stor\u012f (\u00b110% nuo nominalaus storio). Bandiniuose neturi b\u016bti rauk\u0161li\u0173, skylu\u010di\u0173 ir sulenkim\u0173.<\/p>\n<\/li>\n<li data-start=\"3237\" data-end=\"3384\">\n<p data-start=\"3240\" data-end=\"3384\"><strong data-start=\"3240\" data-end=\"3265\">Storio matavimas<\/strong><br data-start=\"3265\" data-end=\"3268\" \/>I\u0161matuokite kiekvieno bandinio stor\u012f mikrometru (tikslumas \u00b10,0025 mm), laikydamiesi <strong data-start=\"3371\" data-end=\"3383\">ISO 4593<\/strong>.<\/p>\n<\/li>\n<li data-start=\"3386\" data-end=\"3640\">\n<p data-start=\"3389\" data-end=\"3415\"><strong data-start=\"3389\" data-end=\"3413\">\u012erangos paruo\u0161imas<\/strong><\/p>\n<ul data-start=\"3419\" data-end=\"3640\">\n<li data-start=\"3419\" data-end=\"3482\">Pasirinkite A arba B metod\u0105, atsi\u017evelgdami \u012f numatom\u0105 atsparum\u0105 sm\u016bgiams.<\/li>\n<li data-start=\"3486\" data-end=\"3549\">Nustatykite str\u0117l\u0117s auk\u0161t\u012f: 0,66 m pagal A metod\u0105, 1,50 m pagal B metod\u0105.<\/li>\n<li data-start=\"3553\" data-end=\"3640\">Pritvirtinkite pl\u0117vel\u0119 naudodami <strong data-start=\"3577\" data-end=\"3595\">\u017eiediniai spaustukai<\/strong> su amortizuojan\u010diomis tarpikliais, u\u017etikrinan\u010diomis, kad neslyst\u0173.<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"3642\" data-end=\"3937\"><strong data-start=\"3645\" data-end=\"3682\">Atlikite \u201elaipt\u0173 metodo\u201c test\u0105<\/strong>\n<ul data-start=\"3688\" data-end=\"3937\">\n<li data-start=\"3688\" data-end=\"3726\">Prad\u0117kite nuo apytikrio dart\u0173 svorio.<\/li>\n<li data-start=\"3730\" data-end=\"3781\">Numeskite str\u0117l\u0119 ir steb\u0117kite, ar pl\u0117vel\u0117 nesuply\u0161.<\/li>\n<li data-start=\"3785\" data-end=\"3860\">Atsi\u017evelgdami \u012f rezultat\u0105, didinkite arba ma\u017einkite svor\u012f fiksuotais \u017eingsniais.<\/li>\n<li data-start=\"3864\" data-end=\"3937\">T\u0119skite, kol bent 20 bandymo ta\u0161k\u0173 pateiks duomenis apie gedim\u0105 arba jo nebuvim\u0105.<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"3939\" data-end=\"4111\">\n<p data-start=\"3942\" data-end=\"4111\"><strong data-start=\"3942\" data-end=\"3979\">Apskai\u010diuokite sm\u016bgio metu susidaran\u010di\u0105 mas\u0119<\/strong><br data-start=\"3979\" data-end=\"3982\" \/>Naudokite \u201elaipt\u0173 metodo\u201c statistin\u0119 formul\u0119, kad nustatytum\u0117te <strong data-start=\"4049\" data-end=\"4072\">sm\u016bgio gedimo mas\u0117<\/strong> (mas\u0117, kuriai esant 50% bandini\u0173 sugenda).<\/p>\n<\/li>\n<\/ol>\n<h2 data-start=\"4118\" data-end=\"4153\">Veiksniai, darantys \u012ftak\u0105 testo tikslumui<\/h2>\n<ul>\n<li data-start=\"4157\" data-end=\"4262\"><strong data-start=\"4157\" data-end=\"4177\">Med\u017eiagos kokyb\u0117<\/strong>: Vienodas storis, \u0161tampavimo linij\u0173 nebuvimas ir ter\u0161al\u0173 nebuvimas u\u017etikrina patikimus duomenis.<\/li>\n<li data-start=\"4265\" data-end=\"4346\"><strong data-start=\"4265\" data-end=\"4286\">Fiksavimo sl\u0117gis<\/strong>: Netinkamas sl\u0117gis gali sukelti slydim\u0105, o tai gali tur\u0117ti \u012ftakos rezultatams.<\/li>\n<li data-start=\"4349\" data-end=\"4442\"><strong data-start=\"4349\" data-end=\"4371\">Pavyzd\u017eio b\u016bkl\u0117<\/strong>: Pavir\u0161iaus defektai arba nevienodas storis gali tur\u0117ti \u012ftakos atsparumui sm\u016bgiams.<\/li>\n<li data-start=\"4445\" data-end=\"4547\"><strong data-start=\"4445\" data-end=\"4469\">La\u0161\u0173 atkuriamumas<\/strong>: Norint u\u017etikrinti statistin\u012f tikslum\u0105, b\u016btina i\u0161laikyti pastov\u0173 lygiavim\u0105 ir kritimo auk\u0161t\u012f.<\/li>\n<\/ul>\n<p data-start=\"4549\" data-end=\"4683\">Siekiant kuo labiau suma\u017einti klaid\u0173 skai\u010di\u0173, <strong data-start=\"4569\" data-end=\"4615\">auk\u0161to tikslumo prietaisai, tokie kaip FDT-01<\/strong> labai rekomenduojami modeliai su automatin\u0117mis valdymo sistemomis ir saugos funkcijomis.<\/p>\n<h2 data-start=\"4690\" data-end=\"4733\">Kod\u0117l verta rinktis \u201eCell Instruments\u201c FDT-01?<\/h2>\n<p data-start=\"4735\" data-end=\"4914\">Svetain\u0117 <strong data-start=\"4739\" data-end=\"4798\">\u201eCell Instruments\u201c FDT-01 <span style=\"color: #75c32c;\"><a style=\"color: #75c32c;\" href=\"https:\/\/www.qualitester.com\/lt\/produktas-2\/fdt-01-polypropylene-film-drop-dart-tester\/\" target=\"_blank\" rel=\"noopener\">Laisvai krintan\u010di\u0173 str\u0117li\u0173 sm\u016bginis testeris<\/a><\/span><\/strong> yra specialiai suprojektuotas taip, kad atitikt\u0173 grie\u017etus ISO 7765-1 standarto reikalavimus. Jo automatizuota ir modulin\u0117 konstrukcija u\u017etikrina:<\/p>\n<ul>\n<li data-start=\"4918\" data-end=\"4984\">Tiksl\u016bs ir pakartojami rezultatai abiem atvejais <strong data-start=\"4958\" data-end=\"4983\">A metodas ir B metodas<\/strong>.<\/li>\n<li data-start=\"4987\" data-end=\"5072\">Veiksmingas kokyb\u0117s kontrol\u0117s testavimas <strong data-start=\"5028\" data-end=\"5071\">pakuot\u0117s, pl\u0117vel\u0117s ir medicinin\u0117s med\u017eiagos<\/strong>.<\/li>\n<li data-start=\"5075\" data-end=\"5183\">Sklandi integracija \u012f laboratorijos darbo procesus, nes ji <strong data-start=\"5124\" data-end=\"5151\">patogi vartotojui s\u0105saja<\/strong> ir <strong data-start=\"5156\" data-end=\"5182\">skaitmenini\u0173 duomen\u0173 teikimas<\/strong>.<\/li>\n<\/ul>\n<p data-start=\"5185\" data-end=\"5299\">D\u0117l to tai yra <strong data-start=\"5201\" data-end=\"5298\">patikimas pasirinkimas mokslini\u0173 tyrim\u0173 ir pl\u0117tros laboratorijoms, kokyb\u0117s u\u017etikrinimo skyriams ir nepriklausomoms bandym\u0173 agent\u016broms<\/strong>.<\/p>\n<h2 data-start=\"5306\" data-end=\"5320\">I\u0161vada<\/h2>\n<p data-start=\"5322\" data-end=\"5798\"><a href=\"https:\/\/www.iso.org\/standard\/14629.html\" target=\"_blank\" rel=\"noopener nofollow\"><em data-start=\"5322\" data-end=\"5334\">ISO 7765-1<\/em><\/a> atlieka esmin\u012f vaidmen\u012f vertinant plastikini\u0173 pl\u0117veli\u0173 sm\u016bgin\u012f atsparum\u0105 pagal standartizuot\u0105 <strong data-start=\"5427\" data-end=\"5447\">\u201eDart\u201c sm\u016bgio bandymas<\/strong> naudojant <strong data-start=\"5456\" data-end=\"5491\">laisvo kritimo str\u0117li\u0173 sm\u016bgio bandymo \u012frenginys<\/strong>. Tiksl\u016bs bandymai ne tik padidina produkto saugum\u0105 ir na\u0161um\u0105, bet ir u\u017etikrina atitikt\u012f tarptautiniams kokyb\u0117s standartams. Nor\u0117dami atlikti tikslius ir efektyvius bandymus, specialistai tur\u0117t\u0173 pasikliauti tokiais prietaisais kaip <strong data-start=\"5711\" data-end=\"5738\">\u201eCell Instruments\u201c FDT-01<\/strong>, kuris leid\u017eia lengvai gauti pakartojamus ir reikalavimus atitinkan\u010dius rezultatus.<\/p>\n<h2 data-start=\"5805\" data-end=\"5813\">DUK<\/h2>\n<p data-start=\"5815\" data-end=\"5993\"><strong data-start=\"5815\" data-end=\"5858\">1. Koks yra pagrindinis ISO 7765-1 standarto tikslas?<\/strong><br data-start=\"5858\" data-end=\"5861\" \/>Tikslas \u2013 nustatyti energij\u0105, reikaling\u0105 50% tipo plastikin\u0117s pl\u0117vel\u0117s bandini\u0173 gedimui sukelti standartin\u0117mis sm\u016bgio s\u0105lygomis.<\/p>\n<p data-start=\"5995\" data-end=\"6202\"><strong data-start=\"5995\" data-end=\"6057\">2. Kuo skiriasi A metodas nuo B metodo?<\/strong><br data-start=\"6057\" data-end=\"6060\" \/>A metodu naudojamas 38 mm skersmens str\u0117l\u0117, numesta i\u0161 0,66 m auk\u0161\u010dio; B metodu naudojamas 50 mm skersmens str\u0117l\u0117, numesta i\u0161 1,50 m auk\u0161\u010dio. B metodas tinka didesniems sm\u016bgio nuotoliams.<\/p>\n<p data-start=\"6204\" data-end=\"6409\"><strong data-start=\"6204\" data-end=\"6271\">3. Kod\u0117l pakavimo pl\u0117vel\u0117ms svarbus atsparumas sm\u016bgiams?<\/strong><br data-start=\"6271\" data-end=\"6274\" \/>Tai rodo filmo geb\u0117jim\u0105 atlaikyti mechaninius sm\u016bgius tvarkant, gabenant ir sand\u0117liuojant, taip u\u017etikrinant produkto apsaug\u0105.<\/p>\n<p data-start=\"6411\" data-end=\"6601\"><strong data-start=\"6411\" data-end=\"6483\">4. Ar galima palyginti A ir B metodais gautus str\u0117l\u0117s sm\u016bgio bandymo rezultatus?<\/strong><br data-start=\"6483\" data-end=\"6486\" \/>Ne. Metod\u0173 A ir B rezultat\u0173 negalima tiesiogiai lyginti d\u0117l skirtum\u0173, susijusi\u0173 su str\u0117li\u0173 dyd\u017eiu, mase ir kritimo auk\u0161\u010diu.<\/p>","protected":false},"excerpt":{"rendered":"<p>ISO 776&#8211;1 Dart Impact Test Introduction In the packaging and plastic film industry, impact resistance is a critical performance parameter. ISO 7765-1 defines a standardized test method for evaluating the impact failure energy of plastic film and sheet materials using a free falling dart impact tester. Understanding ISO 7765-1 and Its Purpose ISO 7765-1 is &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/www.qualitester.com\/lt\/standards\/iso-7765-1\/\"> <span class=\"screen-reader-text\">ISO 7765-1<\/span> Skaityti daugiau \"<\/a><\/p>","protected":false},"author":4,"featured_media":0,"parent":4948,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","footnotes":""},"class_list":["post-6695","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.qualitester.com\/lt\/wp-json\/wp\/v2\/pages\/6695","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.qualitester.com\/lt\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.qualitester.com\/lt\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.qualitester.com\/lt\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.qualitester.com\/lt\/wp-json\/wp\/v2\/comments?post=6695"}],"version-history":[{"count":0,"href":"https:\/\/www.qualitester.com\/lt\/wp-json\/wp\/v2\/pages\/6695\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.qualitester.com\/lt\/wp-json\/wp\/v2\/pages\/4948"}],"wp:attachment":[{"href":"https:\/\/www.qualitester.com\/lt\/wp-json\/wp\/v2\/media?parent=6695"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}