{"id":9834,"date":"2026-02-24T15:11:44","date_gmt":"2026-02-24T07:11:44","guid":{"rendered":"https:\/\/www.packqc.com\/standard\/iso-719-2\/"},"modified":"2026-04-16T09:54:21","modified_gmt":"2026-04-16T01:54:21","slug":"iso-719","status":"publish","type":"standard","link":"https:\/\/www.packqc.com\/da\/standard\/iso-719\/","title":{"rendered":"ISO 719"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Hvad er ISO 719?<\/h2>\n\n\n\n<p><strong data-start=\"1071\" data-end=\"1087\">ISO 719:2020<\/strong> er den internationale standard med titlen <em data-start=\"1125\" data-end=\"1220\">\u201cGlas - Hydrolytisk modstandsdygtighed af glaskorn ved 98 \u00b0C - Pr\u00f8vningsmetode og klassificering.\u201d<\/em> Den definerer en procedure til at teste, hvor modstandsdygtige glaskorn er over for vand ved forh\u00f8jede temperaturer. Testen m\u00e5ler den m\u00e6ngde syre, der skal til for at neutralisere alkali fra en bestemt glasmasse. Resultaterne kan rapporteres enten efter syrevolumen eller tilsvarende natriumoxidindhold, hvilket giver et kvantificerbart grundlag for klassificering.<\/p>\n\n\n\n<p>Denne standard er specielt designet til <strong data-start=\"1605\" data-end=\"1635\">mindre modstandsdygtige glastyper<\/strong>, som f.eks. <strong data-start=\"1645\" data-end=\"1664\">soda-lime-glas<\/strong>, i mods\u00e6tning til <strong data-start=\"1673\" data-end=\"1684\">ISO 720<\/strong>, som er rettet mod borsilikat og andre mere kemisk stabile glas.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Test af hydrolytisk modstandsdygtighed for glas: Hvorfor det er vigtigt<\/h2>\n\n\n\n<p>De <strong data-start=\"1824\" data-end=\"1864\">Test af hydrolytisk modstandsdygtighed for glas<\/strong> bestemmer, hvor meget alkalisk materiale der udvaskes i vand, n\u00e5r glasset uds\u00e6ttes for h\u00f8je temperaturer. Disse data er vigtige for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sikring af kemisk stabilitet af <strong data-start=\"2032\" data-end=\"2061\">farmaceutiske beholdere<\/strong> som ampuller, h\u00e6tteglas og orale flasker.<\/li>\n\n\n\n<li>Forebyggelse af produktnedbrydning for\u00e5rsaget af interaktion mellem emballage og medicin.<\/li>\n\n\n\n<li>Klassificering af glastyper baseret p\u00e5 holdbarhed og valg af passende emballagematerialer.<\/li>\n<\/ul>\n\n\n\n<p>En d\u00e5rlig bed\u00f8mmelse af hydrolytisk modstandsdygtighed kan indikere en risiko for udvaskning af alkali, hvilket kan kompromittere indholdets holdbarhed eller sikkerhed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Testprocedure for glaskorn baseret p\u00e5 ISO 719<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Pr\u00f8veforberedelse<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong data-start=\"2601\" data-end=\"2613\">Knusning<\/strong>: Glasartikler (udgl\u00f8dede) knuses manuelt eller mekanisk til korn.<\/li>\n\n\n\n<li><strong data-start=\"2693\" data-end=\"2704\">Sigtning<\/strong>: Kornene adskilles ved hj\u00e6lp af sigter p\u00e5 710 \u00b5m, 500 \u00b5m og 300 \u00b5m. Kun korn, der passerer gennem 500 \u00b5m, men tilbageholdes p\u00e5 300 \u00b5m, bruges.<\/li>\n\n\n\n<li><strong data-start=\"2841\" data-end=\"2853\">Reng\u00f8ring<\/strong>: Kornene vaskes med acetone og reng\u00f8res i et ultralydsbad. Derefter t\u00f8rres de ved 140 \u00b0C.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Testprocedure<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong data-start=\"2978\" data-end=\"2990\">Vejning<\/strong>: 2 g rene, t\u00f8rre korn afvejes i hver af de tre m\u00e5lekolber.<\/li>\n\n\n\n<li><strong data-start=\"3069\" data-end=\"3083\">Udvinding<\/strong>: Kolberne fyldes med vand af kvalitet 2 og opvarmes i et bad til 98 \u00b0C i 60 minutter.<\/li>\n\n\n\n<li><strong data-start=\"3173\" data-end=\"3186\">Titrering<\/strong>: Efter afk\u00f8ling titreres en del af supernatantv\u00e6sken med methylr\u00f8dt som indikator for at bestemme m\u00e6ngden af frigivet alkali.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Klassificering<\/h3>\n\n\n\n<p>Baseret p\u00e5 m\u00e6ngden af anvendt titreringsmiddel klassificeres glasset i hydrolytiske modstandsklasser. St\u00f8rre m\u00e6ngder indikerer st\u00f8rre alkalifrigivelse, hvilket tyder p\u00e5 lavere hydrolytisk resistens.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Instrument i s\u00f8gelyset: GHR-01A af Cell Instruments<\/h2>\n\n\n\n<p>For at str\u00f8mline <a href=\"https:\/\/www.iso.org\/standard\/77843.html\" target=\"_blank\" rel=\"noopener nofollow\">ISO 719<\/a> testprocessen og reducere den manuelle arbejdsbyrde, tilbyder Cell Instruments <strong data-start=\"3695\" data-end=\"3747\">GHR-01A Hydrolytisk modstandstester af glaskorn<\/strong>. Den automatiserer <strong data-start=\"3766\" data-end=\"3808\">Knusning og vibrationssigtning<\/strong>, Det sikrer en gentagelig og pr\u00e6cis pr\u00f8veforberedelse.<br><strong data-start=\"3864\" data-end=\"3881\">N\u00f8glefunktioner:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong data-start=\"3885\" data-end=\"3919\">Automatiseret knusning og sigtning<\/strong>: Sikrer ensartethed i pr\u00f8verne og overholdelse af ISO-standarder.<\/li>\n\n\n\n<li><strong data-start=\"3984\" data-end=\"4007\">HMI-ber\u00f8ringsgr\u00e6nseflade<\/strong>: Forbedrer brugerkontrol og brugervenlighed.<\/li>\n\n\n\n<li><strong data-start=\"4056\" data-end=\"4075\">Sikkerhedsfunktioner<\/strong>: St\u00e6nksk\u00e6rme af glas og systemer til opsamling af affald forbedrer sikkerheden og renligheden i laboratoriet.<\/li>\n\n\n\n<li><strong data-start=\"4167\" data-end=\"4195\">Pr\u00e6cision og effektivitet<\/strong>: Automatiseret sigtning giver mere ensartede testpr\u00f8ver og minimerer menneskelige fejl.<a href=\"https:\/\/www.packqc.com\/da\/product\/sale-glass-grain-hydrolytic-resistance-tester\/\"> <\/a><\/li>\n<\/ul>\n\n\n\n<p>GHR-01A kan varmt anbefales til laboratorier og farmaceutiske virksomheder, der \u00f8nsker at overholde ISO 719 og str\u00f8mline kvalitetskontrolprocesser.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\n\t\t\t\tKontakt os og f\u00e5 en ISO 719-testl\u00f8sning\t\t\t\t<\/h2>\n\n\n\n<p>ISO 719 spiller en afg\u00f8rende rolle i kvalificeringen og klassificeringen af glasmaterialer, der bruges i farmaceutisk emballage. Ved at f\u00f8lge procedurerne i denne standard kan producenter og laboratorier n\u00f8jagtigt vurdere <strong data-start=\"5254\" data-end=\"5279\">hydrolytisk resistens<\/strong>, forbedre <strong data-start=\"5289\" data-end=\"5310\">kvalitetssikring<\/strong>, og sikre overholdelse af lovgivningen. Med instrumenter som Cell Instruments\u2019 <strong data-start=\"5386\" data-end=\"5397\">GHR-01A<\/strong>, bliver testprocessen mere effektiv, sikker og p\u00e5lidelig - og giver dit laboratorium mulighed for at opretholde de h\u00f8jeste standarder for produktsikkerhed og ydeevne.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ofte stillede sp\u00f8rgsm\u00e5l<\/h2>\n\n\n\n<p>1. Hvad er form\u00e5let med ISO 719?<br>ISO 719 bruges til at evaluere glaskornets hydrolytiske modstandsdygtighed ved 98 \u00b0C, hvilket hj\u00e6lper med at klassificere den kemiske holdbarhed af glastyper, is\u00e6r sodakalkglas.<\/p>\n\n\n\n<p>2. Hvilke typer glas egner sig til at blive testet under ISO 719?<br>Standarden g\u00e6lder for mindre kemisk modstandsdygtige glas, prim\u00e6rt sodakalkglas. Mere modstandsdygtige typer som borosilikatglas skal testes ved hj\u00e6lp af ISO 720.<\/p>\n\n\n\n<p>3. Hvilken pr\u00f8vest\u00f8rrelse kr\u00e6ves til ISO 719-test?<br>Der er brug for mindst 2 gram korn pr. test med kornst\u00f8rrelser mellem 300 \u00b5m og 500 \u00b5m.<\/p>\n\n\n\n<p>4. Hvordan forbedrer GHR-01A ISO 719-testen?<br>GHR-01A automatiserer knuse- og sigteprocesser, forbedrer pr\u00e6cisionen, reducerer manuelle fejl og forbedrer laboratoriets sikkerhed og effektivitet.<\/p>\n\n\n\n<p>5. Hvad indikerer en h\u00f8j hydrolytisk resistens?<br>H\u00f8j modstandsdygtighed betyder lav udvaskning af alkali, hvilket indikerer, at glasset er kemisk stabilt og egnet til farmaceutiske anvendelser.<\/p>","protected":false},"excerpt":{"rendered":"<p>What is ISO 719? ISO 719:2020 is the international standard titled &#8220;Glass \u2014 Hydrolytic resistance of glass grains at 98 \u00b0C \u2014 Method of test and classification.&#8221; It defines a procedure for testing how resistant glass grains are to water at elevated temperatures. The test measures the volume of acid needed to neutralize alkali extracted [&hellip;]<\/p>","protected":false},"featured_media":5519,"parent":0,"template":"","meta":{"_acf_changed":true,"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":"","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":""}}},"standard-category":[612],"class_list":["post-9834","standard","type-standard","status-publish","has-post-thumbnail","hentry","standard-category-iso"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.packqc.com\/da\/wp-json\/wp\/v2\/standard\/9834","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.packqc.com\/da\/wp-json\/wp\/v2\/standard"}],"about":[{"href":"https:\/\/www.packqc.com\/da\/wp-json\/wp\/v2\/types\/standard"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.packqc.com\/da\/wp-json\/wp\/v2\/media\/5519"}],"wp:attachment":[{"href":"https:\/\/www.packqc.com\/da\/wp-json\/wp\/v2\/media?parent=9834"}],"wp:term":[{"taxonomy":"standard-category","embeddable":true,"href":"https:\/\/www.packqc.com\/da\/wp-json\/wp\/v2\/standard-category?post=9834"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}