{"id":1425,"date":"2026-07-23T06:12:28","date_gmt":"2026-07-23T06:12:28","guid":{"rendered":"https:\/\/www.packtests.com\/?post_type=standard&#038;p=1425"},"modified":"2026-07-23T06:14:04","modified_gmt":"2026-07-23T06:14:04","slug":"astm-d1894","status":"publish","type":"standard","link":"https:\/\/www.packtests.com\/lt\/standard\/astm-d1894\/","title":{"rendered":"ASTM D1894"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Plastikin\u0117s pl\u0117vel\u0117s atlieka lemiam\u0105 vaidmen\u012f \u0161iuolaikin\u0117je pakavimo pramon\u0117je \u2013 nuo maisto mai\u0161eli\u0173 ir vaist\u0173 pakeli\u0173 iki pramonini\u0173 \u012fd\u0117kl\u0173 ir vartojimo preki\u0173 \u012fpakavim\u0173. Viena i\u0161 svarbiausi\u0173 pavir\u0161iaus savybi\u0173, turin\u010di\u0173 \u012ftakos pakuot\u0117s savyb\u0117ms, yra <strong>ASTM D1894<\/strong> trinties koeficientas (COF). Netinkamas trinties lygis gali sukelti gamybos sustabdymus, prast\u0105 apdirbamum\u0105, nestabil\u0173 krovini\u0173 i\u0161d\u0117stym\u0105 ant pad\u0117kl\u0173 arba nepatenkinam\u0105 vartotoj\u0173 patirt\u012f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0160iame straipsnyje paai\u0161kinama <strong>ASTM D1894<\/strong> praktiniu in\u017einerijos po\u017ei\u016briu, \u012fskaitant \u0161io <strong>trinties koeficiento bandymas<\/strong>, bandym\u0173 principai, bandini\u0173 paruo\u0161imas, rezultat\u0173 interpretavimas ir \u012frangos parinkimas. Nesvarbu, ar esate pakuo\u010di\u0173 gamintojas, kokyb\u0117s kontrol\u0117s in\u017einierius, laboratorijos technikas ar produkt\u0173 k\u016br\u0117jas, supratimas apie <strong>ASTM D1894<\/strong> padeda u\u017etikrinti pastovi\u0105 produkcijos kokyb\u0119 ir efektyvi\u0105 gamyb\u0105.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Kod\u0117l ASTM D1894 standartas yra svarbus<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>ASTM D1894<\/strong> yra standartinis bandymo metodas, naudojamas nustatyti <strong>statinis trinties koeficientas<\/strong> ir <strong>kinetinis trinties koeficientas<\/strong> i\u0161 plastikin\u0117s pl\u0117vel\u0117s ir lak\u0161t\u0173.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0160is bandymas leid\u017eia \u012fvertinti, kokia j\u0117ga reikalinga, kad tarp dviej\u0173 besilie\u010dian\u010di\u0173 pavir\u0161i\u0173 prasid\u0117t\u0173 jud\u0117jimas, ir kokia j\u0117ga reikalinga, kad jud\u0117jimas b\u016bt\u0173 i\u0161laikytas. \u0160ie matavimai suteikia vertingos informacijos apie pakavimo med\u017eiag\u0173 slydimo savybes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pakuo\u010di\u0173 gamyboje trintis tiesiogiai veikia:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Greitaeig\u0117s formavimo, u\u017epildymo ir u\u017esandarinimo operacijos<\/li>\n\n\n\n<li>Automatin\u0117 etike\u010di\u0173 klijavimo \u012franga<\/li>\n\n\n\n<li>Pakavimo \u012f d\u0117\u017ees ir konvejeri\u0173 sistemos<\/li>\n\n\n\n<li>Pakuo\u010di\u0173 sukrovimo stabilumas<\/li>\n\n\n\n<li>Ritini\u0173 vyniojimo na\u0161umas<\/li>\n\n\n\n<li>Vartotoj\u0173 aptarnavimo patirtis<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Kadangi pavir\u0161iaus trintis daro \u012ftak\u0105 tiek gamybos efektyvumui, tiek galutinio produkto eksploatacin\u0117ms savyb\u0117ms, <strong>pakuo\u010di\u0173 COF bandymai<\/strong> tapo \u012fprasta kokyb\u0117s kontrol\u0117s proced\u016bra daugelyje pramon\u0117s \u0161ak\u0173.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Statinio ir kinetinio trinties koeficient\u0173 supratimas<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Svetain\u0117 <strong>trinties koeficiento bandymas<\/strong> matuoja du skirtingus trinties elgesio atvejus.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Parametras<\/th><th>Apra\u0161ymas<\/th><th>Svarba<\/th><\/tr><\/thead><tbody><tr><td>Statinis COF<\/td><td>Jud\u0117jimui prad\u0117ti reikalinga j\u0117ga<\/td><td>Rodo pradin\u012f klijavimosi ar u\u017esikim\u0161imo polink\u012f<\/td><\/tr><tr><td>Kinetinis COF<\/td><td>J\u0117ga, reikalinga jud\u0117jimui i\u0161laikyti<\/td><td>Atspindi nuolatin\u012f slydimo na\u0161um\u0105<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Didelis statinis trinties koeficientas (COF) gali sukelti pl\u0117veli\u0173 sulipim\u0105, o labai ma\u017eas COF gali suma\u017einti paketo stabilum\u0105. Pana\u0161iai, kinetinis trinties koeficientas (COF) daro \u012ftak\u0105 tam, kaip skland\u017eiai med\u017eiagos juda per pakavimo \u012frang\u0105.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Optimalus trinties lygis priklauso nuo naudojimo paskirties, o ne nuo siekio pasiekti kuo ma\u017eesn\u0119 vert\u0119.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ASTM D1894 bandymo principas<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Principas <strong>ASTM D1894<\/strong> yra paprasta.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vienas bandinys pritvirtinamas prie horizontalios bandymo platformos, o kitas \u2013 prie svorio turin\u010di\u0173 rogi\u0173. Rog\u0117s traukiamos kontroliuojamu grei\u010diu naudojant bandymo prietais\u0105. Jud\u0117jimo metu prietaisas nuolat matuoja traukos j\u0117g\u0105.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trinties koeficientas apskai\u010diuojamas taip:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>COF = trinties j\u0117ga \u00f7 statin\u0117 j\u0117ga<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Did\u017eiausia j\u0117ga, reikalinga jud\u0117jimui prad\u0117ti, atitinka statin\u012f trinties koeficient\u0105, o vidutin\u0117 j\u0117ga, veikianti nuolatinio slydimo metu, atitinka kinetin\u012f trinties koeficient\u0105.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tikslus grei\u010dio reguliavimas yra b\u016btinas, nes trinties dyd\u017eiai priklauso nuo jud\u0117jimo grei\u010dio. Standarte ASTM D1894 nurodytas bandymo greitis yra <strong>150 mm\/min<\/strong>, o standarte ISO 8295 nurodyta, kad <strong>100 mm\/min<\/strong>, tod\u0117l labai svarbu, kad prietaisai atitikt\u0173 pasirinkt\u0105 standart\u0105.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Reikalavimai bandomajam m\u0117giniui<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Tinkamas m\u0117gini\u0173 paruo\u0161imas yra itin svarbus norint gauti patikimus duomenis.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pagal ASTM D1894:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Pavyzdys<\/th><th>Tipinis dydis<\/th><\/tr><\/thead><tbody><tr><td>Plok\u0161\u010dias bandinys<\/td><td>Ma\u017edaug 250 \u00d7 130 mm<\/td><\/tr><tr><td>Prie rogi\u0173 pritvirtinta pl\u0117vel\u0117<\/td><td>Ma\u017edaug 120 \u00d7 120 mm<\/td><\/tr><tr><td>Storas lak\u0161tas, pritvirtintas prie rogi\u0173<\/td><td>63,5 \u00d7 63,5 mm<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Standarte taip pat rekomenduojama:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Tyrimas, apimantis ne ma\u017eiau kaip penkis bandinius<\/li>\n\n\n\n<li>Naudojant \u0161varius, neu\u017eter\u0161tus m\u0117ginius<\/li>\n\n\n\n<li>Kaip i\u0161vengti pir\u0161t\u0173 atspaud\u0173 ant bandom\u0173j\u0173 pavir\u0161i\u0173<\/li>\n\n\n\n<li>M\u0117gini\u0173 keitimas po kiekvieno bandymo<\/li>\n\n\n\n<li>Nuoseklaus popieriaus i\u0161ilginio krypties i\u0161laikymas bandymo metu<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Net nedidelis dulki\u0173 ar alyvos kiekis gali smarkiai paveikti i\u0161matuotas trinties vertes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Veiksniai, darantys \u012ftak\u0105 plastikin\u0117s pl\u0117vel\u0117s trinties koeficientui<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Svetain\u0117 <strong>plastikin\u0117s pl\u0117vel\u0117s trinties koeficientas<\/strong> tai priklauso nuo daugelio veiksni\u0173, ne tik nuo pa\u010dios med\u017eiagos.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Da\u017eniausiai pasitaikantys veiksniai yra \u0161ie:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Priedai slydimui<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Polietileno ir polipropileno pl\u0117vel\u0117se da\u017enai yra slydimo pried\u0173, kurie laikui b\u0117gant migruoja \u012f pavir\u0161i\u0173 ir kei\u010dia trinties savybes.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Pavir\u0161iaus apdorojimas<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u201eCorona\u201c apdorojimas, plazminis apdorojimas, dangos ir spausdinimas kei\u010dia pavir\u0161iaus energij\u0105 ir d\u0117l to daro \u012ftak\u0105 trinties savyb\u0117ms.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Filmo sen\u0117jimas<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Daugelis pried\u0173 i\u0161siskiria palaipsniui. Tod\u0117l trinties rodikliai gali pasikeisti pra\u0117jus kelioms dienoms ar savait\u0117ms po gamybos.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Temperat\u016bra ir dr\u0117gm\u0117<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Aplinkos s\u0105lygos daro \u012ftak\u0105 polimero pavir\u0161iaus savyb\u0117ms, tod\u0117l jas reikia kontroliuoti bandym\u0173 metu.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Gamybos procesas<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ekstruzijos s\u0105lygos, au\u0161inimo ritinio temperat\u016bra ir apdorojimo greitis \u2013 visa tai daro \u012ftak\u0105 pavir\u0161iaus morfologijai.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Siekiant atlikti prasmingus palyginimus, laboratorijos tur\u0117t\u0173 laikytis nuosekli\u0173 paruo\u0161imo proced\u016br\u0173 ir u\u017etikrinti pastovias aplinkos s\u0105lygas.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Popieriaus trinties koeficientas, palyginti su plastikin\u0117s pl\u0117vel\u0117s trinties koeficientu<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nors <strong>ASTM D1894<\/strong> nors \u010dia daugiausia aptariamos plastikin\u0117s pl\u0117vel\u0117s ir lak\u0161tai, pana\u0161\u016bs trinties bandym\u0173 principai taip pat yra naudingi vertinant <strong>popieriaus trinties koeficientas<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Popierin\u0117s pakuot\u0117s naudojamos:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sulankstomos kartonin\u0117s d\u0117\u017eut\u0117s<\/li>\n\n\n\n<li>Gofruoti \u012fd\u0117klai<\/li>\n\n\n\n<li>Popierin\u0117s etiket\u0117s<\/li>\n\n\n\n<li>Lakuotas kartonas<\/li>\n\n\n\n<li>Spausdinimo pagrindai<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Popieriaus pavir\u0161iai da\u017enai pasi\u017eymi skirtingomis trinties savyb\u0117mis d\u0117l nelygum\u0173, dang\u0173, pluo\u0161to orientacijos ir dr\u0117gm\u0117s \u012fsisavinimo. Daugelyje perdirbimo operacij\u0173 trintis tarp popieriaus ir plastikini\u0173 pl\u0117veli\u0173 taip pat daro \u012ftak\u0105 \u012frengini\u0173 na\u0161umui.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Suprasti tiek <strong>popieriaus trinties koeficientas<\/strong> ir plastiko med\u017eiag\u0173 naudojimas leid\u017eia gamintojams optimizuoti i\u0161 keli\u0173 med\u017eiag\u0173 sudarytas pakavimo sistemas.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Pakuo\u010di\u0173 trinties koeficiento (COF) bandym\u0173 taikymo sritys<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Pakuo\u010di\u0173 COF bandymai<\/strong> yra pla\u010diai naudojama visame produkto k\u016brimo ir gamybos procese.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Lankstusis pakavimas<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>U\u017ekand\u017ei\u0173 mai\u0161eliai<\/li>\n\n\n\n<li>\u0160aldyt\u0173 maisto produkt\u0173 pakuot\u0117s<\/li>\n\n\n\n<li>Retortiniai mai\u0161eliai<\/li>\n\n\n\n<li>Vakuuminiai mai\u0161eliai<\/li>\n\n\n\n<li>Stovintys mai\u0161eliai<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Farmacin\u0117s pakuot\u0117s<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Medicinini\u0173 reikmen\u0173 mai\u0161eliai<\/li>\n\n\n\n<li>Blisterini\u0173 pakuo\u010di\u0173 dangtelio med\u017eiagos<\/li>\n\n\n\n<li>Sterilios barjerin\u0117s sistemos<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Vartotojams skirti produktai<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Asmens prie\u017ei\u016bros produkt\u0173 pakuot\u0117s<\/li>\n\n\n\n<li>Buitini\u0173 preki\u0173 \u012fpakavimai<\/li>\n\n\n\n<li>Kosmetikos lankstusis \u012fpakavimas<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Pramonin\u0117 pakuot\u0117<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Elastin\u0117s pl\u0117vel\u0117s<\/li>\n\n\n\n<li>Termoplastin\u0117s pl\u0117vel\u0117s<\/li>\n\n\n\n<li>Apsauginiai \u012fd\u0117klai<\/li>\n\n\n\n<li>Tvirtos krep\u0161iai<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Reguliar\u016bs trinties bandymai padeda nustatyti gamybos nuokrypius dar prie\u0161 produktams pasiekiant klientus.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Kaip pasirinkti COF bandymo \u012frengin\u012f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Tinkamo pasirinkimas <strong>COF bandymo \u012frenginys<\/strong> tai rei\u0161kia ne tik atitikim\u0105 pagrindiniams standartams. Laboratorijos tur\u0117t\u0173 \u012fvertinti kelet\u0105 veikimo charakteristik\u0173.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Svarb\u016bs aspektai, \u012f kuriuos reikia atsi\u017evelgti:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Atitiktis ASTM D1894 ir ISO 8295 standartams<\/li>\n\n\n\n<li>Stabilus traukimo grei\u010dio reguliavimas<\/li>\n\n\n\n<li>Auk\u0161to tikslumo apkrovos jutiklis<\/li>\n\n\n\n<li>Automatinis statinio ir kinetinio trinties koeficiento (COF) apskai\u010diavimas<\/li>\n\n\n\n<li>Paprastas naudojimas<\/li>\n\n\n\n<li>Duomen\u0173 saugojimo ir eksporto galimyb\u0117s<\/li>\n\n\n\n<li>Pakartotini\u0173 judesi\u0173 sistema<\/li>\n\n\n\n<li>Paprastas m\u0117ginio montavimas<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0160iuolaikin\u0117se laboratorijose taip pat naudojamos jutiklin\u0117s s\u0105sajos, statistin\u0117s analiz\u0117s ir skaitmenin\u0117s ataskait\u0173 rengimo funkcijos.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u201eCell Instruments\u201c gaminamas trinties koeficiento matuoklis COF-01<\/h2>\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-large is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/www.packtests.com\/wp-content\/uploads\/2026\/07\/COF-01cof-testing-machine-1024x1024.webp\" alt=\"ASTM D1894. Pakuo\u010di\u0173 trinties koeficiento bandymas\" class=\"wp-image-1426\" style=\"width:314px;height:auto\" title=\"\" srcset=\"https:\/\/www.packtests.com\/wp-content\/uploads\/2026\/07\/COF-01cof-testing-machine-1024x1024.webp 1024w, https:\/\/www.packtests.com\/wp-content\/uploads\/2026\/07\/COF-01cof-testing-machine-300x300.webp 300w, https:\/\/www.packtests.com\/wp-content\/uploads\/2026\/07\/COF-01cof-testing-machine-150x150.webp 150w, https:\/\/www.packtests.com\/wp-content\/uploads\/2026\/07\/COF-01cof-testing-machine-768x768.webp 768w, https:\/\/www.packtests.com\/wp-content\/uploads\/2026\/07\/COF-01cof-testing-machine-12x12.webp 12w, https:\/\/www.packtests.com\/wp-content\/uploads\/2026\/07\/COF-01cof-testing-machine.webp 1080w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Laboratorijoms, kurioms reikalingi patikimi <strong>trinties koeficiento bandymas<\/strong> rezultatai, <strong>COF-01 Trinties koeficiento matuoklis<\/strong> i\u0161 <a href=\"https:\/\/www.packtests.com\/lt\/\" target=\"_blank\" rel=\"noreferrer noopener\">Cell Instruments<\/a> si\u016blo prakti\u0161k\u0105 sprendim\u0105 kasdieninei kokyb\u0117s kontrolei ir moksliniams tyrimams.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Pagrindin\u0117s specifikacijos<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Prek\u0117<\/th><th>Techniniai duomenys<\/th><\/tr><\/thead><tbody><tr><td>J\u0117gos daviklis<\/td><td>5 N (galima nustatyti)<\/td><\/tr><tr><td>Tikslumas<\/td><td>0,51 TP5T F.S.<\/td><\/tr><tr><td>Rog\u0117s svoris<\/td><td>200 \u00b11 g<\/td><\/tr><tr><td>Testo greitis<\/td><td>150 mm\/min (ASTM), 100 mm\/min (ISO)<\/td><\/tr><tr><td>Jud\u0117jimo sistema<\/td><td>\u017dingsninis variklis su rutuliniu sraigtu<\/td><\/tr><tr><td>Vartotojo s\u0105saja<\/td><td>PLC valdymas su jutikliniu HMI ekranu<\/td><\/tr><tr><td>Duomen\u0173 i\u0161vestis<\/td><td>Maks., min., vidutinis COF, spausdintuvas, papildomas RS-232<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Praktin\u0117s savyb\u0117s<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">COF-01 yra sukurtas siekiant padidinti bandym\u0173 efektyvum\u0105 \u0161iais b\u016bdais:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Dviej\u0173 re\u017eim\u0173 statiniai ir kinetiniai bandymai<\/li>\n\n\n\n<li>Automatinis duomen\u0173 surinkimas<\/li>\n\n\n\n<li>Trinties kreiv\u0117s rodymas realiuoju laiku<\/li>\n\n\n\n<li>Pakartojami tikslieji judesiai<\/li>\n\n\n\n<li>Tvirta aliuminio bandym\u0173 platforma<\/li>\n\n\n\n<li>Pritaikoma kalbos s\u0105saja<\/li>\n\n\n\n<li>Apsauga nuo perkrovos ir automatinis gr\u012f\u017eimas<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0160ios funkcijos padeda laboratorijoms gauti nuoseklius ir pakartojamus rezultatus, tuo pa\u010diu supaprastindamos kasdien\u012f darb\u0105.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Geriausios praktikos, u\u017etikrinan\u010dios patikimus ASTM D1894 bandymus<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Siekiant u\u017etikrinti matavim\u0173 nuoseklum\u0105:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Paruo\u0161kite m\u0117ginius kontroliuojamomis laboratorin\u0117mis s\u0105lygomis.<\/li>\n\n\n\n<li>Kai tik \u012fmanoma, su m\u0117giniais dirbkite d\u0117v\u0117dami pir\u0161tines.<\/li>\n\n\n\n<li>Kiekvienam tyrimui naudokite \u0161vie\u017eius m\u0117ginius.<\/li>\n\n\n\n<li>Laikykite bandym\u0173 platform\u0105 \u0161vari\u0105.<\/li>\n\n\n\n<li>Periodi\u0161kai tikrinkite rogi\u0173 svor\u012f.<\/li>\n\n\n\n<li>Reguliariai kalibruokite apkrovos jutikl\u012f.<\/li>\n\n\n\n<li>Laikykit\u0117s nurodyto traukimo grei\u010dio.<\/li>\n\n\n\n<li>Atlikite pakankam\u0105 skai\u010di\u0173 pakartojim\u0173, kad b\u016bt\u0173 u\u017etikrintas statistinis patikimumas.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nuoseklios laboratorin\u0117s praktikos da\u017enai labiau prisideda prie rezultat\u0173 pakartojamumo nei pats prietaisas.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ASTM D1894 ir susij\u0119 standartai<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nors <strong>ASTM D1894<\/strong> yra vienas i\u0161 pla\u010diausiai taikom\u0173 plastiko pl\u0117veli\u0173 trinties standart\u0173; laboratorijose, priklausomai nuo med\u017eiagos ir paskirties, da\u017enai naudojami susij\u0119 standartai.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Standartinis<\/th><th>Parai\u0161ka<\/th><\/tr><\/thead><tbody><tr><td>ASTM D1894<\/td><td>Plastikin\u0117s pl\u0117vel\u0117s ir lak\u0161t\u0173 statinis ir kinetinis trinties koeficientas (COF)<\/td><\/tr><tr><td>ISO 8295<\/td><td>Plastikin\u0117s pl\u0117vel\u0117s ir lak\u0161t\u0173 trinties koeficientas<\/td><\/tr><tr><td>ASTM D2534<\/td><td>Va\u0161ko dang\u0173 trinties koeficientas<\/td><\/tr><tr><td>TAPPI T549<\/td><td>Popieriaus ir kartono trinties bandymai<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Pasirinkus tinkam\u0105 standart\u0105 u\u017etikrinama, kad rezultatai atitikt\u0173 produkto specifikacijas ir klient\u0173 reikalavimus.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">I\u0161vada<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Pavir\u0161iaus trintis turi didel\u0119 \u012ftak\u0105 pakavimo na\u0161umui, gamybos efektyvumui ir produkto kokybei. <a href=\"https:\/\/store.astm.org\/d1894-24.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">ASTM D1894<\/a> si\u016blo standartizuot\u0105 metod\u0105, skirt\u0105 tiek statini\u0173, tiek kinetini\u0173 trinties charakteristik\u0173 matavimui, leid\u017eiant\u012f gamintojams steb\u0117ti gamybos proceso nuoseklum\u0105, \u012fvertinti med\u017eiag\u0173 poky\u010dius ir optimizuoti pakuot\u0117s savybes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nesvarbu, ar vertinant <strong>plastikin\u0117s pl\u0117vel\u0117s trinties koeficientas<\/strong>, vertinant <strong>popieriaus trinties koeficientas<\/strong>, arba atliekant \u012fprastus <strong>pakuo\u010di\u0173 COF bandymai<\/strong>, norint gauti reik\u0161mingus rezultatus, b\u016btina tur\u0117ti patikim\u0105 \u012frang\u0105 ir laikytis standartizuot\u0173 proced\u016br\u0173. Auk\u0161tos kokyb\u0117s <strong>COF bandymo \u012frenginys<\/strong>, kartu su tinkamu bandini\u0173 paruo\u0161imu ir kontroliuojamomis laboratorin\u0117mis s\u0105lygomis, leid\u017eia gamintojams priimti pagr\u012fstus sprendimus d\u0117l kokyb\u0117s, suma\u017einti gamybos svyravimus ir pagerinti pakuo\u010di\u0173 eksploatacines savybes \u012fvairiose pramon\u0117s \u0161akose.<\/p>","protected":false},"excerpt":{"rendered":"<p>Plastic films play a critical role in modern packaging, from food pouches and pharmaceutical sachets to industrial liners and consumer product wrapping. One of the most important surface characteristics influencing package performance is the ASTM D1894 coefficient of friction (COF). An improper friction level can lead to production downtime, poor machinability, unstable pallet loads, or [&hellip;]<\/p>","protected":false},"featured_media":1426,"parent":0,"template":"","meta":{"_acf_changed":false},"standard-category":[],"class_list":["post-1425","standard","type-standard","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.packtests.com\/lt\/wp-json\/wp\/v2\/standard\/1425","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":5,"href":"https:\/\/www.packtests.com\/lt\/wp-json\/wp\/v2\/standard\/1425\/revisions"}],"predecessor-version":[{"id":1590,"href":"https:\/\/www.packtests.com\/lt\/wp-json\/wp\/v2\/standard\/1425\/revisions\/1590"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.packtests.com\/lt\/wp-json\/wp\/v2\/media\/1426"}],"wp:attachment":[{"href":"https:\/\/www.packtests.com\/lt\/wp-json\/wp\/v2\/media?parent=1425"}],"wp:term":[{"taxonomy":"standard-category","embeddable":true,"href":"https:\/\/www.packtests.com\/lt\/wp-json\/wp\/v2\/standard-category?post=1425"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}