![\"Lasipakkausten](\"https:\/\/www.pharmacopoeiatest.com\/wp-content\/uploads\/2026\/03\/Hydrolytic-Resistance-Test-for-Glass-Containers-ISO-719-and-ISO-720-Explained.webp\")
<\/a><\/figure>\n\n\n\nMit\u00e4 on hydrolyyttinen kest\u00e4vyys?<\/h2>\n\n\n\n
Hydrolyyttisell\u00e4 kest\u00e4vyydell\u00e4 tarkoitetaan lasin kyky\u00e4 kest\u00e4\u00e4 kemiallista vaikutusta joutuessaan kosketuksiin veden kanssa, erityisesti kun se kuumennetaan tiettyihin l\u00e4mp\u00f6tiloihin. L\u00e4\u00e4ke- tai elintarviketeollisuudessa k\u00e4ytett\u00e4vien lasiastioiden on l\u00e4p\u00e4ist\u00e4v\u00e4 hydrolyyttisen kest\u00e4vyyden testit, jotta voidaan varmistaa, etteiv\u00e4t ne vapauta haitallisia aineita altistuessaan vedelle pitk\u00e4ll\u00e4 aikav\u00e4lill\u00e4.<\/p>\n\n\n\n
ISO 719: Lasirakeiden hydrolyyttinen kest\u00e4vyys 98 \u00b0C:ssa<\/h2>\n\n\n\n
ISO 719 on standardi, jossa m\u00e4\u00e4ritell\u00e4\u00e4n menetelm\u00e4 lasirakeiden hydrolyyttinen kest\u00e4vyys 98 \u00b0C:ssa<\/strong>. T\u00e4m\u00e4 menetelm\u00e4 sopii erinomaisesti v\u00e4hemm\u00e4n kest\u00e4vien lasien, kuten natriumkalkkilasin, testaamiseen. Testiss\u00e4 lasirakeita (tietyn kokoisia) uutetaan tislatulla vedell\u00e4 98 \u00b0C:ssa 60 minuutin ajan, mink\u00e4 j\u00e4lkeen analysoidaan lasista vapautuvien em\u00e4ksisten ionien (p\u00e4\u00e4asiassa natriumin) pitoisuudet.<\/p>\n\n\n\n Tuloksia k\u00e4ytet\u00e4\u00e4n lasin luokitteluun sen hydrolyyttisen kest\u00e4vyyden perusteella. Lasit, joilla on suurempi kest\u00e4vyys, kuten borosilikaattilasi, saattavat edellytt\u00e4\u00e4 erilaista testausmenetelm\u00e4\u00e4, kuten standardissa ISO 720 on kuvattu.<\/p>\n\n\n\n ISO 720 on samankaltainen testimenetelm\u00e4, mutta se suoritetaan korkeammassa l\u00e4mp\u00f6tilassa, joka on 121 \u00b0C<\/strong>. T\u00e4m\u00e4 testi sopii paremmin iskunkest\u00e4v\u00e4t lasityypit<\/strong>, kuten borosilikaattilasi, jota k\u00e4ytet\u00e4\u00e4n usein l\u00e4\u00e4ketieteellisiss\u00e4 ja farmaseuttisissa pakkauksissa sen kest\u00e4vyyden vuoksi. Menetelm\u00e4ss\u00e4 k\u00e4ytet\u00e4\u00e4n samanlaista uuttamisprosessia, mutta se eroaa l\u00e4mp\u00f6tilan, keston ja testattavan lasim\u00e4\u00e4r\u00e4n osalta.<\/p>\n\n\n\n Hydrolyyttisen kest\u00e4vyyden testaus on t\u00e4rke\u00e4\u00e4, koska sen avulla valmistajat ja laadunvalvontavastaavat voivat varmistaa, ettei pakkauksissa k\u00e4ytetty lasi reagoi pakkauksen sis\u00e4ll\u00f6n kanssa. Mahdollinen hajoaminen voisi vaarantaa l\u00e4\u00e4kkeiden tai elintarvikkeiden laadun, mik\u00e4 voisi johtaa turvallisuusriskeihin ja s\u00e4\u00e4ntelyyn liittyviin ongelmiin.<\/p>\n\n\n\n Hydrolyyttisen kest\u00e4vyyden standarditestauslaitteistoon kuuluvat vaa\u2019at, byretit, pipetit sek\u00e4 erityiset lasiastiat, kuten autoklaavit, joilla varmistetaan tarkkojen tulosten saavuttamiseksi tarvittavat tarkat olosuhteet. Laitteita, kuten Cell Instrumentsin GHR-01A-lasinen raekokoelija<\/strong> on suunniteltu t\u00e4ytt\u00e4m\u00e4\u00e4n n\u00e4m\u00e4 vaatimukset ja varmistamaan lasin\u00e4ytteiden asianmukainen k\u00e4sittely testin aikana.<\/p>\n\n\n\n The lasipakkausten hydrolyyttinen kest\u00e4vyystesti<\/strong> on v\u00e4ltt\u00e4m\u00e4t\u00f6n menettely lasin kemiallisen kest\u00e4vyyden m\u00e4\u00e4ritt\u00e4miseksi. ISO 719- ja ISO 720 -standardien tuntemus auttaa valmistajia varmistamaan, ett\u00e4 heid\u00e4n tuotteensa ovat turvallisia ja t\u00e4ytt\u00e4v\u00e4t alan m\u00e4\u00e4r\u00e4ykset. Ottamalla k\u00e4ytt\u00f6\u00f6n luotettavia testauslaitteita, kuten Cell Instrumentsin GHR-01A-lasinen raekokoelija<\/strong>, yritykset voivat varmistaa lasipakkaustensa laadun ja eheyden.<\/p>\n\n\n\n <\/p>","protected":false},"excerpt":{"rendered":" Introduction to Hydrolytic Resistance Testing for Glass Containers The hydrolytic resistance test for glass containers is a crucial evaluation used to determine the chemical durability of glass when exposed to water or aqueous solutions. This test measures the ability of glass to resist degradation or dissolution, a key factor in ensuring the safety and longevity […]<\/p>","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","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":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[26],"tags":[],"class_list":["post-2583","post","type-post","status-publish","format-standard","hentry","category-blog"],"acf":[],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"trp-custom-language-flag":false},"uagb_author_info":{"display_name":"Editor","author_link":"https:\/\/www.pharmacopoeiatest.com\/fi\/author\/editor\/"},"uagb_comment_info":0,"uagb_excerpt":"Introduction to Hydrolytic Resistance Testing for Glass Containers The hydrolytic resistance test for glass containers is a crucial evaluation used to determine the chemical durability of glass when exposed to water or aqueous solutions. This test measures the ability of glass to resist degradation or dissolution, a key factor in ensuring the safety and longevity…","_links":{"self":[{"href":"https:\/\/www.pharmacopoeiatest.com\/fi\/wp-json\/wp\/v2\/posts\/2583","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pharmacopoeiatest.com\/fi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pharmacopoeiatest.com\/fi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pharmacopoeiatest.com\/fi\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pharmacopoeiatest.com\/fi\/wp-json\/wp\/v2\/comments?post=2583"}],"version-history":[{"count":2,"href":"https:\/\/www.pharmacopoeiatest.com\/fi\/wp-json\/wp\/v2\/posts\/2583\/revisions"}],"predecessor-version":[{"id":2586,"href":"https:\/\/www.pharmacopoeiatest.com\/fi\/wp-json\/wp\/v2\/posts\/2583\/revisions\/2586"}],"wp:attachment":[{"href":"https:\/\/www.pharmacopoeiatest.com\/fi\/wp-json\/wp\/v2\/media?parent=2583"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pharmacopoeiatest.com\/fi\/wp-json\/wp\/v2\/categories?post=2583"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pharmacopoeiatest.com\/fi\/wp-json\/wp\/v2\/tags?post=2583"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}ISO 720: Lasirakeiden hydrolyyttinen kest\u00e4vyys 121 \u00b0C:ssa<\/h2>\n\n\n\n
Hydrolyyttisen kest\u00e4vyyden testauksen merkitys<\/h2>\n\n\n\n
Hydrolyyttisen kest\u00e4vyyden testaamiseen k\u00e4ytett\u00e4v\u00e4t laitteet<\/h2>\n\n\n\n
<\/h3>\n\n\n\n