{"id":769,"date":"2026-08-26T10:03:41","date_gmt":"2026-08-26T02:03:41","guid":{"rendered":"https:\/\/www.ampouletest.com\/?p=769"},"modified":"2026-08-26T10:03:42","modified_gmt":"2026-08-26T02:03:42","slug":"ampoule-hydrolytic-resistance-testing","status":"publish","type":"post","link":"https:\/\/www.ampouletest.com\/da\/ampoule-hydrolytic-resistance-testing","title":{"rendered":"Test af hydrolytisk modstandsdygtighed af ampuller med henblik p\u00e5 kvalitetskontrol af farmaceutisk glas"},"content":{"rendered":"

Hvad er test af ampullers hydrolytiske modstandsdygtighed?<\/h2>\n\n\n\n

Pr\u00f8vning af ampullers hydrolytiske modstandsdygtighed<\/strong> er en kemisk holdbarhedspr\u00f8vning, der anvendes til at vurdere ampulleglassets modstandsdygtighed over for vandangreb. I mods\u00e6tning til mekaniske pr\u00f8vninger, der m\u00e5ler brudstyrke, topbelastning eller slagfasthed, fokuserer pr\u00f8vningen af hydrolytisk modstandsdygtighed p\u00e5, hvor let glasset afgiver opl\u00f8selige komponenter, n\u00e5r det uds\u00e6ttes for vand under kontrollerede forhold. For farmaceutiske ampuller er denne egenskab s\u00e6rlig vigtig, da glasbeholderen kommer i direkte kontakt med l\u00e6gemiddelformuleringen. Hvis glasset ikke har tilstr\u00e6kkelig hydrolytisk modstandsdygtighed, kan vand fremme frigivelsen af alkaliske eller andre opl\u00f8selige komponenter, hvilket potentielt kan p\u00e5virke l\u00e6gemidlets stabilitet og kompatibiliteten mellem beholderen og l\u00e6gemidlet. ISO 719<\/a> og ISO 720<\/a><\/strong> fastl\u00e6gge metoder til pr\u00f8vning af glasgranulats hydrolytiske holdbarhed, samtidig med at USP 660<\/strong> og EP 3.2.1<\/strong> fasts\u00e6tte krav til farmaceutiske glasbeholdere.<\/p>\n\n\n\n

I testen anvendes typisk glaskorn fremstillet af ampullen<\/strong> i stedet for at teste den komplette beholder direkte. De forberedte partikler uds\u00e6ttes for vand under fastlagte betingelser, og det resulterende ekstrakt analyseres for at bestemme glassets hydrolytiske modstandsdygtighed. ISO 719<\/strong> g\u00e6lder for test ved 98 \u00b0C, mens ISO 720<\/strong> g\u00e6lder for pr\u00f8vning ved 121 \u00b0C. Derfor udg\u00f8r pr\u00f8vning af glasampullers hydrolytiske modstandsdygtighed en praktisk metode til at vurdere den kemiske holdbarhed af farmaceutisk glas og kontrollere, om det er egnet til kontakt med l\u00e6gemiddelformuleringer.<\/p>\n\n\n\n

Hvorfor er hydrolytisk modstandsdygtighed vigtig for ampulleglas?<\/h2>\n\n\n\n

Ampuller anvendes i vid udstr\u00e6kning til injektionspr\u00e6parater og andre farmaceutiske produkter, da glas har fremragende barriereegenskaber og kemisk stabilitet. De forskellige glassammens\u00e6tninger har dog ikke samme modstandsdygtighed over for vandindvirkning.<\/p>\n\n\n\n

Ved langvarig kontakt med vandbaserede formuleringer kan bestanddele i glasset gradvist udskilles til produktet. Omfanget af denne interaktion afh\u00e6nger af faktorer s\u00e5som glassets sammens\u00e6tning, fremstillingsbetingelser, overfladetilstand, temperatur og eksponeringstid.<\/p>\n\n\n\n

Test af hydrolytisk holdbarhed hj\u00e6lper producenter og laboratorier med:<\/p>\n\n\n\n

    \n
  • Vurder ampulleglasets kemiske holdbarhed<\/strong>.<\/li>\n\n\n\n
  • Sammenlign forskellige glassammens\u00e6tninger eller leverand\u00f8rer.<\/li>\n\n\n\n
  • Underst\u00f8tter vurdering af kompatibilitet mellem containere og l\u00e6gemidler.<\/li>\n\n\n\n
  • Overv\u00e5g konsistensen mellem produktionspartierne.<\/li>\n\n\n\n
  • Identificere \u00e6ndringer i glaskvaliteten under fremstillingen.<\/li>\n\n\n\n
  • St\u00f8tte kvalitetskontrol af l\u00e6gemiddelemballage.<\/li>\n\n\n\n
  • P\u00e5vise overholdelse af g\u00e6ldende standarder og krav i farmakop\u00e9en.<\/li>\n<\/ul>\n\n\n\n

    For l\u00e6gemiddelproducenter handler det ikke blot om at fastsl\u00e5, om en glasampul er fysisk holdbar. Glasset skal ogs\u00e5 sikre passende kemisk holdbarhed i hele produktets forventede holdbarhedsperiode<\/strong>.<\/p>\n\n\n\n

    Princippet bag den hydrolytiske modstandstest med glaskorn<\/h2>\n\n\n\n

    Den hydrolysetest af glas<\/strong> er baseret p\u00e5 samspillet mellem glas og vand under kontrollerede forhold.<\/p>\n\n\n\n

    Ved glasgranulatmetoden omdannes en ampul eller en repr\u00e6sentativ glaspr\u00f8ve f\u00f8rst til partikler inden for det angivne st\u00f8rrelsesinterval. De forberedte granulater giver et kontrolleret glasoverfladeareal til fors\u00f8get. Pr\u00f8ven underkastes derefter en vandbehandling i henhold til den g\u00e6ldende metode.<\/p>\n\n\n\n

    Under eksponeringen kan opl\u00f8selige bestanddele udskilles fra glasset og overf\u00f8res til vandet. Det resulterende ekstrakt giver en indikation af glassets modstandsdygtighed over for hydrolytisk nedbrydning.<\/p>\n\n\n\n

    Det generelle princip kan sammenfattes s\u00e5ledes:<\/p>\n\n\n\n

    Ampulleglas \u2192 kontrolleret forberedelse af glaskorn \u2192 vandbehandling \u2192 ekstraktion \u2192 vurdering af hydrolytisk modstandsdygtighed<\/strong><\/p>\n\n\n\n

    Testbetingelserne afh\u00e6nger af den g\u00e6ldende standard. ISO 719 og ISO 720 angiver for eksempel forskellige temperaturbetingelser for test af hydrolytisk modstandsdygtighed hos glaskorn.<\/p>\n\n\n\n

    Da partikelst\u00f8rrelsen og pr\u00f8veforberedelsen kan p\u00e5virke den eksponerede glasoverflade, En ensartet forberedelse af glasgranulatet er en vigtig del af at opn\u00e5 gentagelige resultater<\/strong>.<\/p>\n\n\n\n

    Hvordan udf\u00f8res hydrolysebestandighedstest af ampuller?<\/h2>\n\n\n\n

    En typisk test af hydrolytisk holdbarhed for glasbeholdere<\/strong> omfatter flere kontrollerede trin.<\/p>\n\n\n\n

    1. V\u00e6lg glaspr\u00f8ven fra ampullen<\/h3>\n\n\n\n

    Der udv\u00e6lges repr\u00e6sentative ampuller fra et produktionsparti, en udviklingspr\u00f8ve eller et parti indg\u00e5ende materiale. Pr\u00f8ven skal v\u00e6re repr\u00e6sentativ for den glasbeholder, der skal vurderes.<\/p>\n\n\n\n

    2. Forbered glaskornene<\/h3>\n\n\n\n

    Ampullens glas knuses og findeles til korn ved hj\u00e6lp af passende udstyr. Kornene adskilles derefter ved sigtning for at opn\u00e5 den partikelst\u00f8rrelsesfraktion, der kr\u00e6ves i den g\u00e6ldende procedure.<\/p>\n\n\n\n

    Den GHR-01A Pr\u00f8veudtagningsapparat til bestemmelse af hydrolytisk modstandsdygtighed af glaskorn<\/strong> er udviklet til denne forberedelsesfase. Den integrerer knusning, vibrationssigtning og opsamling for at mindske den manuelle h\u00e5ndtering og forbedre repeterbarheden.<\/p>\n\n\n\n

    3. Udf\u00f8r den hydrolytiske behandling<\/h3>\n\n\n\n

    De forberedte glaskorn uds\u00e6ttes for en kontrolleret eksponering for vand i overensstemmelse med den valgte testmetode. Temperatur, tid, pr\u00f8vem\u00e6ngde og andre testbetingelser skal holdes konstante.<\/p>\n\n\n\n

    4. Vurder uddraget<\/h3>\n\n\n\n

    Efter behandlingen analyseres den fremkomne opl\u00f8sning for at bestemme m\u00e6ngden af opl\u00f8seligt materiale, der er frigivet fra glasset. Resultatet anvendes derefter til at klassificere eller vurdere glassets hydrolytiske modstandsdygtighed i henhold til den g\u00e6ldende standard.<\/p>\n\n\n\n

    5. Sammenlign med kravene<\/h3>\n\n\n\n

    Det endelige resultat kan sammenlignes med de krav, der g\u00e6lder for farmaceutiske glasbeholdere, formuleringer eller det lovgivningsm\u00e6ssige marked.<\/p>\n\n\n\n

    Denne fremgangsm\u00e5de viser, hvorfor test af glas\u2019 hydrolytiske modstandsdygtighed<\/strong> kr\u00e6ver en kontrolleret pr\u00f8veforberedelse samt kontrollerede testbetingelser.<\/p>\n\n\n\n

    Forberedelse af glaspr\u00f8ver til test af hydrolytisk modstandsdygtighed<\/h2>\n\n\n\n
    \n
    \n

    Selvom forberedelsen af glaskornene ikke i sig selv udg\u00f8r den endelige test, bidrager den direkte til p\u00e5lideligheden af vurderingen af hydrolysebestandigheden.<\/p>\n\n\n\n

    GHR-01A kombinerer en integreret morter og en st\u00f8der med et vibrationssigtesystem. Form\u00e5let er at fremstille og klassificere glaskorn, inden de sendes videre til hydrolytisk modstandspr\u00f8vning.<\/p>\n<\/div>\n\n\n\n

    \n
    \"Selvom<\/figure>\n<\/div>\n<\/div>\n\n\n\n

    GHR-01 Tekniske specifikationer<\/h3>\n\n\n\n
    Parameter<\/th>Specifikation<\/th><\/tr><\/thead>
    M\u00f8rtel\/st\u00f8der \u2013 dimensioner<\/td>\u03a650 \/ \u03a648 mm<\/td><\/tr>
    Sigte A-\u00e5bning<\/td>425 \u03bcm<\/td><\/tr>
    Sigte B\u2019s \u00e5bning<\/td>300 \u03bcm<\/td><\/tr>
    Sigte O \u00c5bning<\/td>600 \u03bcm<\/td><\/tr>
    Varighed af sigtrystning<\/td>5 min<\/td><\/tr>
    Gastryk<\/td>0,5 MPa<\/td><\/tr>
    St\u00f8rrelse p\u00e5 gasporten<\/td>\u03a66 mm<\/td><\/tr>
    Kraft<\/td>110\u2013220 V vekselstr\u00f8m, 50\/60 Hz<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    Den automatiserede knuse- og sigtningsproces bidrager til at minimere un\u00f8dvendig kontakt mellem operat\u00f8ren og knust glas, samtidig med at der opn\u00e5s en mere ensartet partikelst\u00f8rrelsesfordeling.<\/p>\n\n\n\n

    De vigtigste fordele ved automatiseret forberedelse af glasgranulat<\/h3>\n\n\n\n

    For laboratorier, der udf\u00f8rer rutineunders\u00f8gelser Pr\u00f8vning af ampullers hydrolytiske modstandsdygtighed<\/strong>, kan automatiseret forberedelse give en r\u00e6kke praktiske fordele.<\/p>\n\n\n\n

    Funktion<\/th>Fordel<\/th><\/tr><\/thead>
    Integreret knusning og sigtning<\/td>Forenkler arbejdsgangen ved pr\u00f8veforberedelse<\/td><\/tr>
    Morter og st\u00f8der, der overholder standarden<\/td>Sikrer ensartet knusning af glas<\/td><\/tr>
    Automatiseret drift<\/td>Mindsker behovet for manuel indgriben<\/td><\/tr>
    Pr\u00e6cisionssigtning ved hj\u00e6lp af vibrationer<\/td>Hj\u00e6lper med at opn\u00e5 den \u00f8nskede kornfraktion<\/td><\/tr>
    HMI-ber\u00f8ringssk\u00e6rm<\/td>G\u00f8r det nemmere at indstille parametre og betjene udstyret<\/td><\/tr>
    Sikkerhedsmekanismer<\/td>Mindsker direkte kontakt med glassk\u00e5r<\/td><\/tr>
    Gentagelig fremstilling<\/td>Sikrer ensartet testning p\u00e5 tv\u00e6rs af pr\u00f8verne<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    Den st\u00f8rste fordel ved GHR-01A er derfor ikke som erstatning for testen af hydrolytisk holdbarhed<\/strong>, men for at tilvejebringe en mere kontrolleret og gentagelig metode til fremstilling af de glaskorn, der kr\u00e6ves til fors\u00f8get.<\/p>\n\n\n\n

    Standarder vedr\u00f8rende forberedelse af glasgranulat til ampuller<\/h3>\n\n\n\n

    Afh\u00e6ngigt af glastypen og den tilsigtede anvendelse kan flere internationale standarder og farmakop\u00e9standarder v\u00e6re relevante.<\/p>\n\n\n\n

    Standard<\/th>Hovedapplikation<\/th><\/tr><\/thead>
    ISO 719<\/a><\/strong><\/td>Glaskornes hydrolytiske modstandsdygtighed ved 98 \u00b0C<\/td><\/tr>
    ISO 720<\/a><\/strong><\/td>Glaskornes hydrolytiske modstandsdygtighed ved 121 \u00b0C<\/td><\/tr>
    USP 660<\/strong><\/td>Beholdere \u2013 Glas<\/td><\/tr>
    EP 3.2.1<\/strong><\/td>Glasbeholdere til farmaceutisk brug<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    ISO 719 og ISO 720<\/strong> er s\u00e6rligt relevante for vurderingen af glasgranulats hydrolytiske modstandsdygtighed. USP 660 og EP 3.2.1 indeholder mere omfattende krav og overvejelser vedr\u00f8rende farmaceutiske glasbeholdere.<\/p>\n\n\n\n

    Den g\u00e6ldende standard b\u00f8r v\u00e6lges ud fra typen af glasbeholder, den farmaceutiske anvendelse og de lovgivningsm\u00e6ssige krav p\u00e5 m\u00e5lmarkedet.<\/p>\n\n\n\n

    Hvad kan man udlede af resultaterne af hydrolysebestandighedstesten?<\/h2>\n\n\n\n

    Resultatet af en hydrolytisk holdbarhedstest giver oplysninger om glassets kemiske holdbarhed<\/strong>.<\/p>\n\n\n\n

    Et glas med st\u00f8rre hydrolytisk modstandsdygtighed afgiver generelt f\u00e6rre opl\u00f8selige bestanddele under de angivne testbetingelser. Dette g\u00f8r resultatet nyttigt, n\u00e5r man skal vurdere, om en glasbeholder er egnet til den p\u00e5t\u00e6nkte farmaceutiske anvendelse.<\/p>\n\n\n\n

    Laboratorierne kan bruge resultaterne til at:<\/p>\n\n\n\n

      \n
    • Sammenlign glasmaterialer fra forskellige leverand\u00f8rer.<\/li>\n\n\n\n
    • Kontroller, at produktionspartierne er ensartede.<\/li>\n\n\n\n
    • St\u00f8tte udviklingen af emballage til l\u00e6gemidler.<\/li>\n\n\n\n
    • Unders\u00f8g \u00e6ndringer i containerkvaliteten.<\/li>\n\n\n\n
    • Vurder, om l\u00e6gemidlet er foreneligt med beholderen.<\/li>\n\n\n\n
    • Underst\u00f8tte lovgivningsm\u00e6ssig og kvalitetsrelateret dokumentation.<\/li>\n<\/ul>\n\n\n\n

      Hydrolytisk modstandsdygtighed b\u00f8r dog vurderes sammen med andre vigtige egenskaber ved beholderen. En glasampul kan have tilstr\u00e6kkelig kemisk holdbarhed, men det er stadig n\u00f8dvendigt at vurdere dens mekaniske styrke, dimensionelle n\u00f8jagtighed, t\u00e6tningsevne og \u00e5bningsevne.<\/p>\n\n\n\n

      Andre pr\u00f8ver til glasampuller<\/h2>\n\n\n\n

      For at kunne foretage en fuldst\u00e6ndig vurdering af ampullernes kvalitet kan laboratorierne kombinere pr\u00f8vninger af hydrolytisk modstandsdygtighed med mekaniske pr\u00f8vninger og m\u00e5linger af dimensioner.<\/p>\n\n\n\n

      Test<\/th>Form\u00e5l<\/th><\/tr><\/thead>
      Pr\u00f8vning af brudstyrke p\u00e5 ampuller<\/strong><\/td>Bestemmer den kraft, der kr\u00e6ves for at kn\u00e6kke eller \u00e5bne ampullen<\/td><\/tr>
      Test af ampullers t\u00e6thed<\/strong><\/td>Vurderer containerens t\u00e6thed og l\u00e6kageegenskaber<\/td><\/tr>
      Test af ampullers aksiale afvigelse<\/strong><\/td>M\u00e5ler aksial justering og afvigelser i dimensioner<\/td><\/tr>
      Pr\u00f8vning af ampullers v\u00e6gtykkelse<\/strong><\/td>M\u00e5ler tykkelsen p\u00e5 glasv\u00e6ggen og bunden<\/td><\/tr>
      Belastningstest af ampullens top\u00e5bning<\/strong><\/td>M\u00e5ler modstandsdygtigheden over for trykbelastning ved ampullens \u00f8verste ende<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

      Disse pr\u00f8vninger vedr\u00f8rer forskellige kvalitetskarakteristika. Hydrolysebestandighed vurderer den kemiske holdbarhed, mens brudstyrke, l\u00e6kage, tykkelse, aksial afvigelse og topbelastning vurderer den mekaniske, dimensionelle eller funktionelle ydeevne.<\/p>\n\n\n\n

      Konklusion<\/h2>\n\n\n\n

      Pr\u00f8vning af ampullers hydrolytiske modstandsdygtighed<\/strong> er en vigtig vurdering af den kemiske holdbarhed af glas, der anvendes til farmaceutiske ampuller. Ved at m\u00e5le glassets modstandsdygtighed over for vandinduceret frigivelse af opl\u00f8selige komponenter giver testen v\u00e6rdifuld information om glaskvalitet, kompatibilitet mellem beholder og l\u00e6gemiddel samt farmaceutisk emballages ydeevne. Ved glasgranulatmetoden er en ensartet pr\u00f8veforberedelse afg\u00f8rende, da partikelst\u00f8rrelse og h\u00e5ndtering af pr\u00f8verne kan p\u00e5virke testens repeterbarhed. Den GHR-01A Pr\u00f8veudtagningsapparat til bestemmelse af hydrolytisk modstandsdygtighed af glaskorn<\/strong> integrerer kontrolleret knusning, sigtning og opsamling i \u00e9n arbejdsgang, hvilket hj\u00e6lper laboratorier med at forberede ensartede glasgranulatpr\u00f8ver til vurdering af hydrolytisk modstandsdygtighed. I kombination med g\u00e6ldende standarder s\u00e5som ISO 719, ISO 720, USP 660 og EP 3.2.1<\/strong>, kan vurderingen af hydrolytisk holdbarhed udg\u00f8re en vigtig del af et omfattende kvalitetskontrolprogram for farmaceutiske glasampuller og andre glasbeholdere.<\/p>\n\n\n\n

      P\u00e5lidelig testning af ampullers hydrolytiske modstand kr\u00e6ver b\u00e5de kontrollerede testbetingelser og ensartet forberedelse af glaskornene. Cell Instruments leverer GHR-01A Glass Grain Hydrolytic Resistance Sampler, der str\u00f8mliner knusning, sigtning og opsamling i forbindelse med testning af farmaceutisk glas. Vi leverer desuden skr\u00e6ddersyede fiksturer og testl\u00f8sninger til ampuller, h\u00e6tteglas og anden farmaceutisk emballage. Kontakt os Cell-instrumenter<\/strong> for at dr\u00f8fte Deres testkrav, f\u00e5 tekniske specifikationer eller anmode om et tilbud p\u00e5 en passende testl\u00f8sning til glasbeholdere.<\/p>\n\n\n\n

      <\/p>","protected":false},"excerpt":{"rendered":"

      What Is Ampoule Hydrolytic Resistance Testing? Ampoule Hydrolytic Resistance Testing is a chemical durability test used to evaluate the resistance of ampoule glass to water attack. Unlike mechanical tests that measure breaking force, top load, or impact resistance, hydrolytic resistance testing focuses on how readily glass releases soluble components when exposed to water under controlled […]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-769","post","type-post","status-publish","format-standard","hentry","category-ampoule-test"],"yoast_head":"\nAmpoule Hydrolytic Resistance Testing for Pharmaceutical Glass Quality<\/title>\n<meta name=\"description\" content=\"Ampoule Hydrolytic Resistance Testing evaluates the chemical durability of ampoule glass grains, supporting pharmaceutical packaging quality, compatibility, and standards compliance.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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