{"id":7692,"date":"2025-12-22T14:13:08","date_gmt":"2025-12-22T06:13:08","guid":{"rendered":"https:\/\/www.qualitester.com\/?page_id=7692"},"modified":"2025-12-22T14:13:08","modified_gmt":"2025-12-22T06:13:08","slug":"astm-d689","status":"publish","type":"page","link":"https:\/\/www.qualitester.com\/lt\/standards\/astm-d689\/","title":{"rendered":"ASTM D689"},"content":{"rendered":"<h1 style=\"text-align: center;\">ASTM D689<br \/>\n<small>Popieriaus atsparumo ply\u0161imui bandymas<\/small><\/h1>\n<hr \/>\n<p>&nbsp;<\/p>\n<p data-start=\"334\" data-end=\"848\"><a href=\"https:\/\/www.astm.org\/\" rel=\"nofollow noopener\" target=\"_blank\"><img decoding=\"async\" class=\"alignleft wp-image-7697\" src=\"https:\/\/www.qualitester.com\/wp-content\/uploads\/2025\/12\/ASTM-D689-271x300.webp\" alt=\"ASTM D689\" width=\"153\" height=\"169\" srcset=\"https:\/\/www.qualitester.com\/wp-content\/uploads\/2025\/12\/ASTM-D689-271x300.webp 271w, https:\/\/www.qualitester.com\/wp-content\/uploads\/2025\/12\/ASTM-D689-11x12.webp 11w, https:\/\/www.qualitester.com\/wp-content\/uploads\/2025\/12\/ASTM-D689.webp 385w\" sizes=\"(max-width: 153px) 100vw, 153px\" \/><\/a>Svetain\u0117 <strong data-start=\"338\" data-end=\"366\">popieriaus atsparumo ply\u0161imui bandymas<\/strong> ASTM D689 apibr\u0117\u017etas standartas yra pla\u010diai taikomas popieriaus atsparumo \u012fpl\u0117\u0161imui vertinimo standartas, kai jau yra atsirad\u0119s \u012ftr\u016bkimas ar \u012fpjovimas. Vietoj to, kad b\u016bt\u0173 nagrin\u0117jama, kaip popierius tr\u016bksta veikiant tempimui, ASTM D689 akcentuoja \u012fpl\u0117\u0161imo plitimo savybes, kurios tiksliai atspindi realias tvarkymo, perdirbimo ir galutinio naudojimo s\u0105lygas. Popieriaus gamintojams, perdirb\u0117jams ir kokyb\u0117s kontrol\u0117s specialistams ASTM D689 suteikia patikim\u0105 ir palyginam\u0105 sistem\u0105 med\u017eiagos savybi\u0173 vertinimui.<\/p>\n<p data-start=\"850\" data-end=\"1010\">\u0160iame straipsnyje daugiausia d\u0117mesio skiriama standartui ASTM D689 kaip <strong data-start=\"889\" data-end=\"906\">bandymo standartas<\/strong>, paai\u0161kinant jo tiksl\u0105, taikymo srit\u012f, technin\u0119 reik\u0161m\u0119 ir praktin\u0119 vert\u0119 popieriaus pramon\u0117je.<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<h2 data-start=\"1017\" data-end=\"1093\">ASTM D689: Popieriaus atsparumas ply\u0161imui ir Elmendorfo ply\u0161imo bandymo aparato standartizavimas<\/h2>\n<p data-start=\"1095\" data-end=\"1533\">Standarte ASTM D689 nustatyta, kad <strong data-start=\"1117\" data-end=\"1140\">popieriaus atsparumas \u012fpl\u0117\u0161imui<\/strong> vertinimo metodas, pagr\u012fstas Elmendorfo \u0161vytuokl\u0117s principu. Standarte apibr\u0117\u017eiama, kaip <strong data-start=\"1230\" data-end=\"1255\">Elmendorfo a\u0161ar\u0173 testeris<\/strong> Jis naudojamas matuoti j\u0117g\u0105, reikaling\u0105 popieriaus \u012fpl\u0117\u0161imui per nustatyt\u0105 atstum\u0105. Standartizavus bandini\u0173 paruo\u0161im\u0105, aplinkos s\u0105lygas ir rezultat\u0173 pateikim\u0105, standartas ASTM D689 u\u017etikrina, kad atsparumo \u012fpl\u0117\u0161imui duomenys b\u016bt\u0173 nuosekl\u016bs ir palyginami skirtingose laboratorijose.<\/p>\n<p data-start=\"1535\" data-end=\"1726\">Svarbu pa\u017eym\u0117ti, kad standartas ASTM D689 techni\u0161kai atitinka standartus ISO 1974 ir TAPPI T414, tod\u0117l popieriaus gamintojai ir pirk\u0117jai visame pasaulyje, tikrindami med\u017eiagos kokyb\u0119, gali remtis lygiaver\u010diais veiklos rodikliais.<\/p>\n<hr \/>\n<h2 data-start=\"1733\" data-end=\"1766\">ASTM D689 standarto tikslas ir taikymo sritis<\/h2>\n<p data-start=\"1768\" data-end=\"1976\">ASTM D689 standartas yra skirtas kaip <strong data-start=\"1796\" data-end=\"1810\">indekso testas<\/strong> popieriaus atsparumui vidiniam \u012fpl\u0117\u0161imui. Pagrindinis \u0161io rodiklio tikslas \u2013 pateikti kiekybin\u0119 vert\u0119, atspindin\u010di\u0105 pluo\u0161t\u0173 sukibimo stiprum\u0105 ir lapo strukt\u016bros vienodum\u0105.<\/p>\n<p data-start=\"1978\" data-end=\"2015\">Pagal standart\u0105 ASTM D689:<\/p>\n<ul data-start=\"2016\" data-end=\"2302\">\n<li data-start=\"2016\" data-end=\"2076\">\n<p data-start=\"2018\" data-end=\"2076\">Taikoma daugumai popieriaus r\u016b\u0161i\u0173, kuri\u0173 daugiasluoksn\u0117s strukt\u016bros buvo i\u0161bandytos<\/p>\n<\/li>\n<li data-start=\"2077\" data-end=\"2138\">\n<p data-start=\"2079\" data-end=\"2138\">Matuoja atsparum\u0105 \u012fpl\u0117\u0161imui statmenai popieriaus plok\u0161tumai<\/p>\n<\/li>\n<li data-start=\"2139\" data-end=\"2205\">\n<p data-start=\"2141\" data-end=\"2205\">Palaiko vertinim\u0105 tiek i\u0161ilgine, tiek skersine kryptimi<\/p>\n<\/li>\n<li data-start=\"2206\" data-end=\"2302\">\n<p data-start=\"2208\" data-end=\"2302\">I\u0161skyrus labai kryptingas plok\u0161tes ir popierius, kuri\u0173 ply\u0161imo savyb\u0117s tampa nereprezentatyvios<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"2304\" data-end=\"2438\">Ai\u0161kiai apibr\u0117\u017edamas taikymo srit\u012f ir apribojimus, standartas ASTM D689 padeda vartotojams pasirinkti tinkam\u0105 bandymo metod\u0105 konkretiems popieriaus gaminiams.<\/p>\n<hr \/>\n<h2 data-start=\"2445\" data-end=\"2505\">ASTM D689 standarto reik\u0161m\u0117 vertinant popieriaus atsparum\u0105 vidiniam ply\u0161imui<\/h2>\n<p data-start=\"2507\" data-end=\"2765\">Standarte ASTM D689 apra\u0161ytas popieriaus atsparumo ply\u0161imui bandymas atlieka lemiam\u0105 vaidmen\u012f vertinant popieriaus kokyb\u0119. Atsparumas ply\u0161imui da\u017enai priklauso nuo pluo\u0161to ilgio, rafinavimo s\u0105lyg\u0173 ir pluo\u0161to jung\u010di\u0173 stiprumo, tod\u0117l tai yra vertingas bendro lapo vientisumo rodiklis.<\/p>\n<p data-start=\"2767\" data-end=\"2810\">Kokyb\u0117s sistem\u0173 kontekste standartas ASTM D689 numato:<\/p>\n<ul data-start=\"2811\" data-end=\"2988\">\n<li data-start=\"2811\" data-end=\"2844\">\n<p data-start=\"2813\" data-end=\"2844\">\u012eprastin\u0117 gamybos steb\u0117sena<\/p>\n<\/li>\n<li data-start=\"2845\" data-end=\"2894\">\n<p data-start=\"2847\" data-end=\"2894\">Tiek\u0117j\u0173 atranka ir pri\u0117mimo bandymai<\/p>\n<\/li>\n<li data-start=\"2895\" data-end=\"2939\">\n<p data-start=\"2897\" data-end=\"2939\">\u0160viesolaid\u017ei\u0173 gedim\u0173 \u0161alinimas arba proces\u0173 pakeitimai<\/p>\n<\/li>\n<li data-start=\"2940\" data-end=\"2988\">\n<p data-start=\"2942\" data-end=\"2988\">\u012evairi\u0173 popieriaus r\u016b\u0161i\u0173 na\u0161umo palyginimas<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"2990\" data-end=\"3163\">ASTM D689 bandym\u0173 rezultatai paprastai vertinami kartu su tempimo, tr\u016bkimo ir sulankstymo atsparumo bandymais, siekiant visapusi\u0161kai \u012fvertinti popieriaus stiprumo charakteristikas.<\/p>\n<hr \/>\n<h2 data-start=\"3170\" data-end=\"3213\">Techninis principas, apibr\u0117\u017etas pagal ASTM D689<\/h2>\n<p data-start=\"3215\" data-end=\"3450\">U\u017euot akcentav\u0119s veiklos etapus, ASTM D689 standartas apibr\u0117\u017eia <strong data-start=\"3285\" data-end=\"3308\">matavimo koncepcija<\/strong> atsparumo ply\u0161imui pagrindas. \u0160iuo metodu kiekybi\u0161kai \u012fvertinama energija, reikalinga ply\u0161imui t\u0119sti po jo prad\u017eios; ji i\u0161rei\u0161kiama kaip vidutin\u0117 ply\u0161imo j\u0117ga.<\/p>\n<p data-start=\"3452\" data-end=\"3764\">Nustatydamas \u0161vytuokl\u0117s energijos diapazonus, bandinio konfig\u016bracij\u0105 ir kalibravimo principus, standartas ASTM D689 suma\u017eina iki minimumo operatoriaus darbo technikos sukelt\u0105 kintamum\u0105. D\u0117l \u0161io d\u0117mesio energijos pagr\u012fstam matavimui popieriaus atsparumo ply\u0161imui bandymas ypa\u010d tinka med\u017eiag\u0173 ir gamybos partij\u0173 lyginamajai analizei.<\/p>\n<hr \/>\n<h2 data-start=\"4447\" data-end=\"4502\">ASTM D689 standarte nurodyti popieriaus tipai ir taikymo sritys<\/h2>\n<p data-start=\"4504\" data-end=\"4630\">Standartas ASTM D689 taikomas pla\u010diam popieriaus gamini\u0173 asortimentui, kur atpl\u0117\u0161imo atsparumas daro \u012ftak\u0105 j\u0173 naudojimo patogumui ir ilgaam\u017ei\u0161kumui, \u012fskaitant:<\/p>\n<ul data-start=\"4631\" data-end=\"4792\">\n<li data-start=\"4631\" data-end=\"4662\">\n<p data-start=\"4633\" data-end=\"4662\">Spausdinimo ir ra\u0161ymo popierius<\/p>\n<\/li>\n<li data-start=\"4663\" data-end=\"4696\">\n<p data-start=\"4665\" data-end=\"4696\">Pakuot\u0117s ir \u012fvyniojimo popierius<\/p>\n<\/li>\n<li data-start=\"4697\" data-end=\"4732\">\n<p data-start=\"4699\" data-end=\"4732\">Pramoniniai ir techniniai straipsniai<\/p>\n<\/li>\n<li data-start=\"4733\" data-end=\"4792\">\n<p data-start=\"4735\" data-end=\"4792\">Specialieji popieriai, kuriems reikalingos subalansuotos stiprumo savyb\u0117s<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"4794\" data-end=\"4956\">Atlikdami popieriaus atsparumo ply\u0161imui bandym\u0105 pagal ASTM D689 standart\u0105, gamintojai u\u017etikrina, kad med\u017eiagos patikimai veikt\u0173 spausdinimo, lankstymo, pjaustymo metu bei galutiniam vartotojui jas naudojant.<\/p>\n<hr \/>\n<h2 data-start=\"4963\" data-end=\"5021\">Matuokli\u0173 parinkimo aspektai, siekiant atitikti ASTM D689 standart\u0105<\/h2>\n<p><a href=\"https:\/\/www.qualitester.com\/lt\/produktas-2\/sld-01-elimendorf-tear-resistance-testing-machine\/\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-7698 alignright\" style=\"font-weight: inherit;\" src=\"https:\/\/www.qualitester.com\/wp-content\/uploads\/2025\/12\/paper-tear-test-300x120.webp\" alt=\"popieriaus atsparumo ply\u0161imui bandymas\" width=\"373\" height=\"149\" srcset=\"https:\/\/www.qualitester.com\/wp-content\/uploads\/2025\/12\/paper-tear-test-300x120.webp 300w, https:\/\/www.qualitester.com\/wp-content\/uploads\/2025\/12\/paper-tear-test-768x307.webp 768w, https:\/\/www.qualitester.com\/wp-content\/uploads\/2025\/12\/paper-tear-test-18x7.webp 18w, https:\/\/www.qualitester.com\/wp-content\/uploads\/2025\/12\/paper-tear-test-600x240.webp 600w, https:\/\/www.qualitester.com\/wp-content\/uploads\/2025\/12\/paper-tear-test.webp 1000w\" sizes=\"(max-width: 373px) 100vw, 373px\" \/><\/a><\/p>\n<p><span style=\"font-size: 16px;\">Nors standartas ASTM D689 nepriklauso nuo naudojam\u0173 prietais\u0173, jame reikalaujama naudoti reikalavimus atitinkant\u012f Elmendorf tipo prietais\u0105, galint\u012f u\u017etikrinti stabili\u0105 \u0161vytuokl\u0117s energij\u0105 ir tikslius matavimo rodmenis. Prietais\u0173 nuoseklumas tiesiogiai veikia popieriaus atsparumo ply\u0161imui duomen\u0173 patikimum\u0105.<\/span><\/p>\n<p data-start=\"5280\" data-end=\"5594\">Svetain\u0117 <a href=\"https:\/\/www.qualitester.com\/lt\/produktas-2\/sld-01-elimendorf-tear-resistance-testing-machine\/\"><strong data-start=\"5284\" data-end=\"5323\">\u201eCell Instruments\u201c a\u0161ar\u0173 testavimo prietaisas SLD-01<\/strong><\/a> tinka laboratorijoms, atliekan\u010dioms ASTM D689 bandymus, ir u\u017etikrina standartizuot\u0105 atsparumo \u012fpl\u0117\u0161imui vertinim\u0105, pasi\u017eym\u0117damas stabiliais mechaniniais parametrais bei pakartojamais matavimo rezultatais. Jo konfig\u016bracija atitinka ASTM D689 reikalavimus, nekei\u010diant standarto metodikos.<\/p>\n<hr \/>\n<h2 data-start=\"5601\" data-end=\"5653\">ASTM D689 kaip pagrindinis popieriaus bandym\u0173 standartas<\/h2>\n<p data-start=\"5655\" data-end=\"5949\">ASTM D689 ir toliau lieka pagrindiniu standartu, skirtu popieriaus atsparumui ply\u0161imui vertinti, nes jis susieja laboratorinius matavimus su tikrovi\u0161komis eksploatacin\u0117mis savyb\u0117mis. \u0160is standartas, sutelkdamas d\u0117mes\u012f \u012f vidin\u012f atsparum\u0105 ply\u0161imui, padeda gamintojams suderinti stiprum\u0105, apdirbamum\u0105 ir med\u017eiagos efektyvum\u0105.<\/p>\n<p data-start=\"5951\" data-end=\"6162\" data-is-last-node=\"\" data-is-only-node=\"\">Specialistams, atsakingiems u\u017e popieriaus kokyb\u0119 ir atitikt\u012f reikalavimams, standartas ASTM D689 yra patikimas, visame pasaulyje pripa\u017eintas orientyras, padedantis priimti nuoseklius sprendimus gamybos, bandym\u0173 ir tiekimo grandin\u0117se.<\/p>\n<hr \/>\n<h2 data-start=\"147\" data-end=\"402\">DUK<\/h2>\n<p data-start=\"147\" data-end=\"402\"><strong data-start=\"147\" data-end=\"172\">1. Kas yra ASTM D689?<\/strong><br data-start=\"172\" data-end=\"175\" \/>ASTM D689 \u2013 tai standartinis bandymo metodas, skirtas matuoti <strong data-start=\"229\" data-end=\"257\">popieriaus atsparumas ply\u0161imui<\/strong> naudojant <strong data-start=\"267\" data-end=\"301\">\u201eElmendorf\u201c atsparumo ply\u0161imui matuoklis<\/strong>. Jis vertina <strong data-start=\"320\" data-end=\"360\">popieriaus atsparumas vidiniam ply\u0161imui<\/strong>, padedant \u012fvertinti kokyb\u0119 ir ilgaam\u017ei\u0161kum\u0105.<\/p>\n<p data-start=\"404\" data-end=\"632\"><strong data-start=\"404\" data-end=\"446\">2. Kod\u0117l popieriaus atsparumo ply\u0161imui bandymas yra svarbus?<\/strong><br data-start=\"446\" data-end=\"449\" \/>A <strong data-start=\"451\" data-end=\"470\">popieriaus atsparumo ply\u0161imui bandymas<\/strong> nustato, kaip popierius atlaiko tvarkymo, perdirbimo ir galutinio naudojimo metu patiriamus apkrovimus. Tai leid\u017eia prognozuoti eksploatacines savybes, u\u017etikrina pastovi\u0105 kokyb\u0119 ir padeda pasirinkti tinkam\u0105 med\u017eiag\u0105.<\/p>\n<p data-start=\"634\" data-end=\"900\"><strong data-start=\"634\" data-end=\"683\">3. K\u0105 rodo Elmendorfo atsparumo ply\u0161imui rodiklis?<\/strong><br data-start=\"683\" data-end=\"686\" \/><strong data-start=\"686\" data-end=\"713\">Elmendorfo atsparumas ply\u0161imui<\/strong> matuoja j\u0117g\u0105, reikaling\u0105 popieriaus \u012fpl\u0117\u0161imui i\u0161pl\u0117sti. Ji atspindi pluo\u0161t\u0173 tarpusavio s\u0105saj\u0105 ir <strong data-start=\"806\" data-end=\"846\">popieriaus atsparumas vidiniam ply\u0161imui<\/strong>, suteikiant svarbi\u0105 informacij\u0105 apie popieriaus savybes.<\/p>\n<p data-start=\"902\" data-end=\"1118\"><strong data-start=\"902\" data-end=\"957\">4. Kokios popieriaus r\u016b\u0161ys gali b\u016bti tiriamos pagal ASTM D689 standart\u0105?<\/strong><br data-start=\"957\" data-end=\"960\" \/>Standartas ASTM D689 tinka spausdinimo, ra\u0161ymo, pakavimo, pramoniniam ir specialiosios paskirties popieriui. Labai kryptingoms kartonin\u0117ms plok\u0161t\u0117ms gali prireikti alternatyvi\u0173 bandymo metod\u0173.<\/p>\n<p data-start=\"1120\" data-end=\"1434\"><strong data-start=\"1120\" data-end=\"1163\">5. Kaip atliekamas ASTM D689 bandymas?<\/strong><br data-start=\"1163\" data-end=\"1166\" \/>\u0160iame teste naudojamas <strong data-start=\"1183\" data-end=\"1216\">\u201eElmendorf\u201c tipo ply\u0161imo bandymo aparatas<\/strong>, kur lak\u0161tai yra prispaud\u017eiami, pradedamas ply\u0161imas ir paleid\u017eiamas \u0161vytuoklis. Ply\u0161imo metu sugauta energija lemia <strong data-start=\"1345\" data-end=\"1373\">popieriaus atsparumas ply\u0161imui<\/strong>. Bandymai atliekami tiek i\u0161ilgine, tiek skersine kryptimi.<\/p>","protected":false},"excerpt":{"rendered":"<p>ASTM D689 Paper Tear Test &nbsp; The paper tear strength test defined by ASTM D689 is a widely adopted standard for evaluating the resistance of paper to tearing once a crack or slit has been initiated. Rather than focusing on how paper breaks under tension, ASTM D689 emphasizes tear propagation behavior, which closely reflects real &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/www.qualitester.com\/lt\/standards\/astm-d689\/\"> <span class=\"screen-reader-text\">ASTM D689<\/span> Skaityti daugiau \"<\/a><\/p>","protected":false},"author":8,"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":"","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-7692","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.qualitester.com\/lt\/wp-json\/wp\/v2\/pages\/7692","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\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.qualitester.com\/lt\/wp-json\/wp\/v2\/comments?post=7692"}],"version-history":[{"count":0,"href":"https:\/\/www.qualitester.com\/lt\/wp-json\/wp\/v2\/pages\/7692\/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=7692"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}