{"id":51830,"date":"2013-10-05T14:30:00","date_gmt":"2013-10-05T14:30:00","guid":{"rendered":"https:\/\/discover.restek.com\/uncategorized\/to-15-canister-relative-humidity-part-iiia-humidifying-your-sample\/"},"modified":"2025-12-12T20:28:03","modified_gmt":"2025-12-12T20:28:03","slug":"to-15-canister-relative-humidity-part-iiia-humidifying-your-sample","status":"publish","type":"post","link":"https:\/\/discover.restek.com\/fr\/blogs\/gnbl4836\/to-15-canister-relative-humidity-part-iiia-humidifying-your-sample","title":{"rendered":"TO-15 Canister Relative Humidity: Part IIIa (Humidifying Your Sample)"},"content":{"rendered":"\n<p>In the first&nbsp;blog (part I)&nbsp;of this series I introduced what is relative humidity (RH) and why do we care about it when sampling\/analyzing whole canister samples for volatile organic compounds (VOCs). In my last&nbsp;blog (part II)&nbsp;I showed you how to calculate the theoretical relative humidity (% RH) in a canister.<\/p>\n\n\n\n<p>In this blog I will show you how we generate a humidified blank. Recall from example 1 in my previous\u00a0blog (part II)\u00a0we learned that 200 \u00b5L of H<sub>2<\/sub>O injected into an evacuated 6 L canister @ 22.5 \u00b0C and then filled to a final pressure of 30 psig would result in a theoretical RH of 55.7%. In the following\u00a0<strong>VIDEO<\/strong>, I am going to show you just how this would be carried out:\u00a0<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-4-3 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"TO-15 Canister Relative Humidity: Part IIIa (Humidifying Your Sample)\" width=\"720\" height=\"540\" src=\"https:\/\/www.youtube.com\/embed\/B3o4u0z9Gus?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>In the first blog (part I) of this series I introduced what is relative humidity (RH) and why do we care about it when sampling\/analyzing whole canister samples for volatile organic compounds (VOCs). In my last blog (part II) I&#8230;<\/p>\n","protected":false},"author":25,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[9],"tags":[],"industries-application":[2231,2230],"post-badge":[],"resource-type":[],"product-library":[],"resource-technique":[2323,2324,2328],"hf_cat_post":[623],"ppma_author":[445],"class_list":["post-51830","post","type-post","status-publish","format-standard","hentry","category-blogs","industries-application-luftprufung","industries-application-umweltbereich","resource-technique-luftprobenahme","resource-technique-gaschromatographie-gc","resource-technique-massenspektrometrie-ms"],"acf":[],"taxonomy_info":{"category":[{"value":9,"label":"Blogs"}],"industries-application":[{"value":2231,"label":"Luftpr\u00fcfung"},{"value":2230,"label":"Umweltbereich"}],"resource-technique":[{"value":2323,"label":"Luftprobenahme"},{"value":2324,"label":"Gaschromatographie (GC)"},{"value":2328,"label":"Massenspektrometrie (MS)"}]},"featured_image_src_large":false,"author_info":{"display_name":"Jason S. Herrington, PhD","author_link":"https:\/\/discover.restek.com\/fr\/author\/jason-s-herrington-phd\/"},"comment_info":0,"category_info":[{"term_id":9,"name":"Blogs","slug":"blogs","term_group":0,"term_taxonomy_id":9,"taxonomy":"category","description":"","parent":0,"count":442,"filter":"raw","cat_ID":9,"category_count":442,"category_description":"","cat_name":"Blogs","category_nicename":"blogs","category_parent":0}],"tag_info":false,"authors":[{"term_id":445,"user_id":25,"is_guest":0,"slug":"jason-s-herrington-phd","display_name":"Jason S. 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