{"id":7917,"date":"2024-05-26T06:42:17","date_gmt":"2024-05-26T06:42:17","guid":{"rendered":"https:\/\/vipur.at\/?p=7917"},"modified":"2024-05-26T06:42:17","modified_gmt":"2024-05-26T06:42:17","slug":"depth-filter-vs-membrane-filter","status":"publish","type":"post","link":"https:\/\/vipur.at\/en\/tiefenfilter-vs-membranfilter\/","title":{"rendered":"Depth Filter or Membrane Filter - when to use which?"},"content":{"rendered":"<p><strong>Do you know the difference between depth filters and membrane filters, and do you feel confident\nabout their use and application in your filtration process?<br \/>\n<\/strong><strong>We will be happy to provide you with the appropriate technical and scientific support on this issue.<\/strong><\/p>\n<p>&nbsp;<\/p>\n<h2><strong>What do you need to know about Depth Filters and Membrane Filters?<\/strong><\/h2>\n<p>&nbsp;<\/p>\n<h3>Functionality of Depth Filter and Membrane Filter<\/h3>\n<ul>\n<li>is fundamentally different<\/li>\n<li>accordingly, an application-specific use must always be evaluated<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h3>Depth Filter<\/h3>\n<p class=\"translation-block\">In this article, we refer to <strong>depth filters<\/strong> whose main component is cellulose and not polypropylene or\nglass fibre.<br>\nThey have a filter thickness of approx. 4mm as a single-layer version or 8mm in the double-layer\nversion.<br>\nIn the laboratory, they are initially tested with 47mm discs until they are finally used in production in 16\"\nmodules\/capsule design or as filter sheets with up to 1200x1200mm.<\/p>\n<p><span style=\"text-decoration: underline;\">The main <strong>advantage<\/strong> of this product:<\/span><\/p>\n<ul>\n<li>large inner surface area<\/li>\n<li>high dirt holding capacity<\/li>\n<li>if necessary, available loading capacity<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>The manufacturers of such depth filter media have the appropriate products in their portfolio for\ndifferent pharmaceutical processes.<\/p>\n<p>It is by no means easy to compare different manufacturers due to the undefined absolute retention.\nTests with a downstream membrane provide information on the performance of the product. If this is\nnot possible, filtration parameters should be used to compare different products.<\/p>\n<p>We at vipur are happy to support you with our decades of expertise and filtration equipment in this\narea.<\/p>\n<p>&nbsp;<\/p>\n<h3>Membrane Filter<\/h3>\n<p class=\"translation-block\"><strong>Membrane filters<\/strong>, on the other hand, are so-called surface filters with almost no dirt holding capacity,\ni.e. they block up quickly under load.<\/p>\n<p><span style=\"text-decoration: underline;\">The main <strong>advantage<\/strong> of this product:<\/span><\/p>\n<ul>\n<li>regulatory retention definition in relation to defined germs<\/li>\n<li>can be tested for integrity using a filter test device<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>The scalability of membrane filters is very large for almost all suppliers and ranges from 25mm syringe\nfilters to 30&quot; filter elements\/capsules.<br \/>\nThe most common membrane materials are PES (polyethersulfone), PVDF (polyvinylidene fluoride) or\nPTFE (polytetrafluoroethylene).<br \/>\nIt is very easy to compare different manufacturers due to the defined retention. The most common test\nmethod used here is the so-called Vmax test.<\/p>\n<p>&nbsp;<\/p>\n<h3>What Depth Filters and Membrane Filters teach us<\/h3>\n<p class=\"translation-block\"><strong>Depth filters<\/strong> have a very high dirt holding capacity and should protect the downstream system as well\nas possible when used as a pre-filter.<\/p>\n<p class=\"translation-block\"><strong>Membrane filters<\/strong> are pure surface filters and can therefore only be used for the filtration of media that\nhave already been treated accordingly. Their retention rate correlates with the bacterial load. They can\nbe checked for integrity using a filter test device.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>Would you like to know more? We will be happy to provide you with detailed information on the subject\nof &quot;Depth Filter versus Membrane Filter&quot; for <a href=\"https:\/\/vipur.at\/wp-content\/uploads\/2024\/03\/Dok_vipur_Depth-Filter-vs-Membrane-Filter_2024_03_en.pdf\" target=\"_blank\" rel=\"noopener\">download<\/a> on our website.<\/p>\n<p>&nbsp;<\/p>\n<p>See you next time - we look forward to further filtration.<\/p>\n<p class=\"translation-block\">Have a nice day,<br>\nthe vipur Team<\/p>","protected":false},"excerpt":{"rendered":"<p>Kennen Sie den Unterschied zwischen Tiefenfilter oder Membranfilter und f\u00fchlen Sie sich sicher bez\u00fcglich deren Verwendung und Einsatz in Ihrem Filtrationsprozess? Wir geben Ihnen auch in dieser Frage gerne entsprechenden technischen und wissenschaftlichen R\u00fcckhalt. &nbsp; Was m\u00fcssen Sie \u00fcber Tiefenfilter und Membranfilter wissen? &nbsp; Funktionalit\u00e4t von Tiefenfilter und Membranfilter ist grundlegend unterschiedlich dementsprechend ist ein [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":7929,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"Tiefenfilter oder Membranfilter \u2013 wann wird was eingesetzt? | vipur","_seopress_titles_desc":"Tiefenfilter und Membranfilter \u2013 kennen Sie den Unterschied. Erfahren Sie mehr in unserem vipur Blog zu Funktionalit\u00e4t \u2714 Verwendung \u2714 Einsatz \u2714","_seopress_robots_index":"","footnotes":""},"categories":[17],"tags":[],"class_list":["post-7917","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-wissenswertes"],"_links":{"self":[{"href":"https:\/\/vipur.at\/en\/wp-json\/wp\/v2\/posts\/7917","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vipur.at\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vipur.at\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vipur.at\/en\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/vipur.at\/en\/wp-json\/wp\/v2\/comments?post=7917"}],"version-history":[{"count":8,"href":"https:\/\/vipur.at\/en\/wp-json\/wp\/v2\/posts\/7917\/revisions"}],"predecessor-version":[{"id":7927,"href":"https:\/\/vipur.at\/en\/wp-json\/wp\/v2\/posts\/7917\/revisions\/7927"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vipur.at\/en\/wp-json\/wp\/v2\/media\/7929"}],"wp:attachment":[{"href":"https:\/\/vipur.at\/en\/wp-json\/wp\/v2\/media?parent=7917"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vipur.at\/en\/wp-json\/wp\/v2\/categories?post=7917"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vipur.at\/en\/wp-json\/wp\/v2\/tags?post=7917"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}