{"id":1099,"date":"2026-04-02T03:31:56","date_gmt":"2026-04-02T03:31:56","guid":{"rendered":"https:\/\/www.geo-tester.com\/?post_type=standard&#038;p=1099"},"modified":"2026-04-08T05:59:39","modified_gmt":"2026-04-08T05:59:39","slug":"astm-d5199","status":"publish","type":"standard","link":"https:\/\/www.geo-tester.com\/da\/standard\/astm-d5199\/","title":{"rendered":"ASTM D5199"},"content":{"rendered":"<p>ASTM D5199 er en af de mest udbredte standarder til bestemmelse af geosynteters nominelle tykkelse. Den giver en ensartet metode til at m\u00e5le tykkelsen af geotekstiler, geomembraner, geonets og dr\u00e6nkompositter under kontrollerede tryk- og kontaktforhold.<\/p>\n\n\n\n<p>Tykkelse er en n\u00f8gleegenskab i geosyntetisk ydeevne. Den p\u00e5virker permeabilitet, beregninger af tr\u00e6ksp\u00e6nding, dr\u00e6ningsadf\u00e6rd, d\u00e6mpningsevne og installationskvalitet. N\u00e5r producenter, laboratorier, entrepren\u00f8rer og kvalitetskontrolteams bruger ASTM D5199 korrekt, kan de med sikkerhed sammenligne resultater fra forskellige materialer og produktionspartier.<\/p>\n\n\n\n<p>For virksomheder, der er involveret i anl\u00e6gsarbejde, milj\u00f8beskyttelse, dr\u00e6ningssystemer, lossepladsforinger, vejbyggeri, minedrift og erosionskontrol, tilbyder ASTM D5199 en p\u00e5lidelig m\u00e5de at verificere produktkonsistens og -overensstemmelse p\u00e5.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Hvad er ASTM D5199?<\/h2>\n\n\n\n<p><strong>ASTM D5199<\/strong> er en standardtestmetode til m\u00e5ling af geosynteters nominelle tykkelse. Metoden m\u00e5ler afstanden mellem to parallelle overflader, mens materialet uds\u00e6ttes for et bestemt tryk i 5 sekunder.<\/p>\n\n\n\n<p>Standarden fokuserer p\u00e5 nominel tykkelse i stedet for minimumstykkelse. Denne skelnen er vigtig, fordi mange geosyntetiske materialer komprimeres under belastning. Et enkelt materiale kan vise forskellige tykkelsesv\u00e6rdier, n\u00e5r der anvendes forskellige kontakttryk.<\/p>\n\n\n\n<p>ASTM D5199 g\u00e6lder for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><em>Geotekstiler<\/em><\/li>\n\n\n\n<li><em>Geomembraner<\/em><\/li>\n\n\n\n<li><em>Geonets<\/em><\/li>\n\n\n\n<li><em>Planare geokomposit-dr\u00e6ningsmaterialer<\/em><\/li>\n\n\n\n<li><em>HDPE geomembraner<\/em><\/li>\n\n\n\n<li><em>V\u00e6vede og ikke-v\u00e6vede geotekstiler<\/em><\/li>\n<\/ul>\n\n\n\n<p>Standarden g\u00e6lder ikke for teksturerede geomembraner eller visse strukturerede geomembraner, fordi trykfoden ikke kan f\u00e5 fuld kontakt med overfladen. I disse tilf\u00e6lde, <a href=\"https:\/\/www.geo-tester.com\/da\/standard\/astm-d5994\/\" target=\"_blank\" rel=\"noreferrer noopener\">ASTM D5994<\/a> anbefales generelt.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Tykkelsestest af geosyntetiske materialer<\/h2>\n\n\n\n<p>Tykkelsestest af geosyntetiske materialer kr\u00e6ver en tykkelsesm\u00e5ler med en flad base og en frit bev\u00e6gelig trykfod. Begge overflader skal v\u00e6re parallelle inden for 0,01 mm for at sikre n\u00f8jagtige afl\u00e6sninger.<\/p>\n\n\n\n<p>Testen f\u00f8lger et simpelt princip:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>Placer pr\u00f8ven p\u00e5 basen.<\/li>\n\n\n\n<li>Bring trykfoden i kontakt med materialet.<\/li>\n\n\n\n<li>Anvend det angivne tryk gradvist.<\/li>\n\n\n\n<li>Hold belastningen i 5 sekunder.<\/li>\n\n\n\n<li>Registrer tykkelsesv\u00e6rdien.<\/li>\n<\/ol>\n\n\n\n<p>Den m\u00e5lte tykkelse rapporteres med en n\u00f8jagtighed p\u00e5 0,02 mm. Laboratorier beregner normalt den gennemsnitlige tykkelse, standardafvigelse og variationskoefficient fra flere pr\u00f8ver.<\/p>\n\n\n\n<p>For de fleste materialer kr\u00e6ver ASTM D5199 ti pr\u00f8ver fordelt over hele rullens bredde. Dette hj\u00e6lper med at fange tykkelsesvariationer for\u00e5rsaget af fremstilling, opbevaring eller h\u00e5ndtering.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">M\u00e5ling af geotekstiltykkelse under ASTM D5199<\/h2>\n\n\n\n<p>Geotekstiltykkelsesm\u00e5ling under ASTM D5199 bruger procedure A. Denne procedure d\u00e6kker geotekstiler, geonets og plane dr\u00e6nkompositter.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Procedure A Testbetingelser<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Trykfodens diameter:<\/strong> 56,4 mm<\/li>\n\n\n\n<li><strong>Cirkul\u00e6rt trykfodsomr\u00e5de:<\/strong> 2500 mm\u00b2<\/li>\n\n\n\n<li><strong>P\u00e5f\u00f8rt tryk:<\/strong> 2 \u00b1 0,02 kPa<\/li>\n\n\n\n<li><strong>Kontakttid:<\/strong> 5 sekunder<\/li>\n\n\n\n<li><strong>M\u00e5leopl\u00f8sning:<\/strong> 0,02 mm<\/li>\n<\/ul>\n\n\n\n<p>Tykkelsesm\u00e5leren skal have en flad ambolt og en frit bev\u00e6gelig trykfod med parallelle overflader.<\/p>\n\n\n\n<p><strong>Kritisk krav:<\/strong> M\u00e5lefladerne skal v\u00e6re parallelle inden for mindre end 0,01 mm for at sikre n\u00f8jagtige tykkelsesm\u00e5linger.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Krav til test af geomembraners tykkelse<\/h2>\n\n\n\n<p>Testen af geomembranens tykkelse bruger procedure B under ASTM D5199.<\/p>\n\n\n\n<p>Procedure B g\u00e6lder for alle glatte geomembraner undtagen teksturerede eller strukturerede geomembraner.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Procedure B Testbetingelser<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Trykfodens diameter:<\/strong> 6,35 mm<\/li>\n\n\n\n<li><strong>P\u00e5f\u00f8rt tryk:<\/strong> 20 \u00b1 0,2 kPa<\/li>\n\n\n\n<li><strong>Kontakttid:<\/strong> 5 sekunder<\/li>\n\n\n\n<li><strong>M\u00e5lingsn\u00f8jagtighed:<\/strong> \u00b10,02 mm<\/li>\n\n\n\n<li><strong>Maksimal m\u00e5lbar tykkelse:<\/strong> Mindst 10 mm<\/li>\n<\/ul>\n\n\n\n<p><strong>En af de vigtigste forskelle mellem procedure A og procedure B er det anvendte tryk. ASTM D5199 bruger 2 kPa til geotekstiler og 20 kPa til geomembraner.<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Vigtige faktorer, der p\u00e5virker testens n\u00f8jagtighed<\/h2>\n\n\n\n<p>Flere faktorer kan p\u00e5virke den endelige tykkelsesv\u00e6rdi under ASTM D5199-testen:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Komprimering af pr\u00f8ver under opbevaring og transport<\/li>\n\n\n\n<li>Fugtindhold i materialet<\/li>\n\n\n\n<li>Uj\u00e6vne pr\u00f8veoverflader<\/li>\n\n\n\n<li>Forkert anvendelse af tryk<\/li>\n\n\n\n<li>Forkert st\u00f8rrelse p\u00e5 trykfod<\/li>\n\n\n\n<li>Utilstr\u00e6kkelig behandling af pr\u00f8ven<\/li>\n\n\n\n<li>Overdreven sp\u00e6nding under h\u00e5ndtering<\/li>\n<\/ul>\n\n\n\n<p>For stive eller kr\u00f8llede materialer kan en ramme hj\u00e6lpe med at flade pr\u00f8ven ud uden at p\u00e5virke m\u00e5leomr\u00e5det. Dette er is\u00e6r nyttigt for stive geokompositter og tunge geomembraner.<\/p>\n\n\n\n<p>Kvalitetskontrolteams b\u00f8r ogs\u00e5 undg\u00e5 at teste pr\u00f8ver, der er taget fra foldede, knuste eller forvr\u00e6ngede dele af en rulle.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Anbefalet udstyr til ASTM D5199-test<\/h2>\n\n\n\n<p>En tykkelsestester af h\u00f8j kvalitet er afg\u00f8rende for at opn\u00e5 gentagelige ASTM D5199-resultater. Instrumentet skal give stabil trykkontrol, n\u00f8jagtig m\u00e5ling af forskydning, fleksible trykfodskonfigurationer og p\u00e5lidelig statistisk analyse.<\/p>\n\n\n\n<p>For laboratorier, der udf\u00f8rer geotekstiltykkelsesm\u00e5ling, geomembrantykkelsestestprocedurer og andre evalueringer af geosyntetisk kvalitet, er Cell Instruments FTT-01 Thickness Tester en passende l\u00f8sning.<\/p>\n\n\n\n<p><strong>De vigtigste fordele er:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>PLC-styring med HMI-ber\u00f8ringssk\u00e6rm til intuitiv betjening<\/li>\n\n\n\n<li>Automatisk trykfodsl\u00f8ft for at minimere skader p\u00e5 pr\u00f8ven og forbedre repeterbarheden<\/li>\n\n\n\n<li>Realtidsvisning af maksimum-, minimum-, gennemsnits- og standardafvigelsesv\u00e6rdier<\/li>\n\n\n\n<li>Valgfri mikroprinter og RS-232-forbindelse til datasporbarhed<\/li>\n\n\n\n<li>Valgfri manuel eller automatisk indf\u00f8ring til testmilj\u00f8er med h\u00f8j kapacitet<\/li>\n\n\n\n<li>H\u00f8j opl\u00f8sning p\u00e5 0,1 \u03bcm inden for omr\u00e5det 0 til 2 mm<\/li>\n\n\n\n<li>Brugerdefineret testomr\u00e5de til tykkere materialer<\/li>\n\n\n\n<li>Flere trykfodsmuligheder til forskellige materialer og standarder<\/li>\n<\/ul>\n\n\n\n<p>FTT-01 Thickness Tester kan konfigureres med flade trykf\u00f8dder, der underst\u00f8tter forskellige trykkrav til film-, papir- og geosyntetiske anvendelser. Denne fleksibilitet g\u00f8r den velegnet til laboratorier, der tester en lang r\u00e6kke materialer ud over geosyntetik, herunder emballagefilm, papir, tekstiler og fleksibel plast.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ofte stillede sp\u00f8rgsm\u00e5l<\/h2>\n\n\n\n<div data-wp-context=\"{ &quot;autoclose&quot;: false, &quot;accordionItems&quot;: [] }\" data-wp-interactive=\"core\/accordion\" role=\"group\" class=\"wp-block-accordion is-layout-flow wp-block-accordion-is-layout-flow\">\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-1&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-1-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-1\" type=\"button\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">Hvad bruges ASTM D5199 til?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-1\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-1-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p>ASTM D5199 bruges til at bestemme den nominelle tykkelse af geosyntetiske materialer som geotekstiler, geomembraner, geonets og dr\u00e6nkompositter.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-2&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-2-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-2\" type=\"button\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">Hvad er forskellen mellem nominel tykkelse og minimumstykkelse?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-2\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-2-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p>Nominel tykkelse refererer til den tykkelse, der m\u00e5les under et bestemt tryk og kontaktforhold, mens minimumstykkelse refererer til den laveste tykkelse, der findes i materialet.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-3&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-3-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-3\" type=\"button\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">Hvorfor bruger ASTM D5199 forskellige tryk for forskellige materialer?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-3\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-3-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p>Geotekstiler komprimeres lettere end geomembraner. Lavere tryk forhindrer overkomprimering af tekstilmaterialer, mens h\u00f8jere tryk sikrer n\u00f8jagtig kontakt for geomembraner.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-4&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-4-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-4\" type=\"button\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">Hvor mange pr\u00f8ver kr\u00e6ver ASTM D5199?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-4\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-4-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p>Standarden kr\u00e6ver generelt ti pr\u00f8ver fordelt over hele materialets bredde.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-5&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-5-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-5\" type=\"button\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">Kan ASTM D5199 teste teksturerede geomembraner?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-5\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-5-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p>Nej. <a href=\"https:\/\/store.astm.org\/d5199-25.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">ASTM D5199<\/a> g\u00e6lder ikke for strukturerede geomembraner, fordi trykfoden ikke kan komme helt i kontakt med overfladen. ASTM D5994 bruges typisk i stedet.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-6&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-6-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-6\" type=\"button\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">Hvad er det n\u00f8dvendige konditioneringsmilj\u00f8 for ASTM D5199?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-6\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-6-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p>Pr\u00f8verne skal konditioneres ved 21 \u00b1 2 \u00b0C og 60 \u00b1 10 % relativ luftfugtighed f\u00f8r testning.<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>ASTM D5199 definerer en standardiseret metode til m\u00e5ling af geosynteters nominelle tykkelse under kontrollerede tryk- og tidsforhold. Metoden g\u00e6lder for geotekstiler, glatte geomembraner, geonets og dr\u00e6nkompositter.<\/p>","protected":false},"featured_media":0,"parent":0,"template":"","meta":{"_acf_changed":true},"standard-category":[],"class_list":["post-1099","standard","type-standard","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.geo-tester.com\/da\/wp-json\/wp\/v2\/standard\/1099","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.geo-tester.com\/da\/wp-json\/wp\/v2\/standard"}],"about":[{"href":"https:\/\/www.geo-tester.com\/da\/wp-json\/wp\/v2\/types\/standard"}],"wp:attachment":[{"href":"https:\/\/www.geo-tester.com\/da\/wp-json\/wp\/v2\/media?parent=1099"}],"wp:term":[{"taxonomy":"standard-category","embeddable":true,"href":"https:\/\/www.geo-tester.com\/da\/wp-json\/wp\/v2\/standard-category?post=1099"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}