{"id":221,"date":"2018-01-11T09:49:01","date_gmt":"2018-01-11T09:49:01","guid":{"rendered":"https:\/\/www.orslabs.fr\/?page_id=221"},"modified":"2025-06-22T15:14:34","modified_gmt":"2025-06-22T13:14:34","slug":"moisture-calculator","status":"publish","type":"page","link":"https:\/\/www.orslabs.fr\/en\/tools\/moisture-calculator\/","title":{"rendered":"Moisture Calculator"},"content":{"rendered":"\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-ytqfh-297904268a7239f14c55ba5012fc55fd\">\n.flex_column.av-ytqfh-297904268a7239f14c55ba5012fc55fd{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-ytqfh-297904268a7239f14c55ba5012fc55fd av_one_full  avia-builder-el-0  el_before_av_one_full  avia-builder-el-first  first flex_column_div av-zero-column-padding  '     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-kkmy2i3s-06abe88e9309ab6d6549bf8bb9882cdf\">\n#top .av-special-heading.av-kkmy2i3s-06abe88e9309ab6d6549bf8bb9882cdf{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-kkmy2i3s-06abe88e9309ab6d6549bf8bb9882cdf .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-kkmy2i3s-06abe88e9309ab6d6549bf8bb9882cdf .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-kkmy2i3s-06abe88e9309ab6d6549bf8bb9882cdf av-special-heading-h1 blockquote modern-quote modern-centered  avia-builder-el-1  avia-builder-el-no-sibling  av-linked-heading'><h1 class='av-special-heading-tag'  itemprop=\"headline\"  >Moisture Calculator<\/h1><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-ztit-a875f73cf78cf4e81d5f7e5e499756a0\">\n.flex_column.av-ztit-a875f73cf78cf4e81d5f7e5e499756a0{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-ztit-a875f73cf78cf4e81d5f7e5e499756a0 av_one_full  avia-builder-el-2  el_after_av_one_full  el_before_av_one_full  first flex_column_div av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-junuchqa-ab5d3e59fc47317322aa4ca8bc77d39f '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>Concentrations of Water Vapor, or Moisture in a gas sample can be expressed in various forms and units:<\/p>\n<ul>\n<li><strong>Dew\/Frost Point Temperature (Td)<\/strong> is the temperature where condensation starts to take place in the form of Liquid Water (Dew) or Ice (Frost). This temperature can be expressed in degree Celsius (\u00b0C), degree Fahrenheit (\u00b0F) or Kelvin (K).<\/li>\n<li><strong>Moisture Volume Concentration (ppm)<\/strong> is the proportion of Water Vapor within the gas sample. It is expressed in %v or ppmv (1%v = 10 000 ppmv).<\/li>\n<li><strong>Relative Humidity (RH)<\/strong> is the proportion of water vapor, compared with the maximum water vapor which could be held in the gas sample at a given temperature and pressure. i.e. a RH of 25% @20\u00b0C means that the gas could hold 4 time more water vapor at this temperature without condensation. It is particularly important to differentiate Volume Concentration and Relative Humidity: a Relative Humidity of 32% (@25\u00b0C) corresponds to a Moisture volume concentration of 1%.<\/li>\n<\/ul>\n<p>These 3 ways of indicating Moisture quantities in a gas sample are linked together by well established formulas.<\/p>\n<p>The tool below helps convert between Dew Point, Volume Concentration and Relative Humidity. You may edit any green background input.<\/p>\n<script type=\"text\/javascript\">\/\/ <![CDATA[\njQuery(document).ready(function(){\n\tsetInterval( function() { AutoiFrameAdjustiFrameHeight( 'Moisture Calculator', 50); }, 1000 );\n});\n\/\/ ]]><\/script>\n<iframe loading=\"lazy\" id=\"Moisture Calculator\" name=\"Moisture Calculator\" src=\"\/ors-tools\/moisture-calculator.html\" width=\"100%\" height=\"auto\" frameborder=\"0\" scrolling=\"no\"onload=\"AutoiFrameAdjustiFrameHeight('Moisture Calculator',50);\"><\/iframe>\n<\/div><\/section><\/div><\/p>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-au8s5-34fc702420349eeddf0059df9e333c23\">\n.flex_column.av-au8s5-34fc702420349eeddf0059df9e333c23{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-au8s5-34fc702420349eeddf0059df9e333c23 av_one_full  avia-builder-el-4  el_after_av_one_full  avia-builder-el-last  first flex_column_div av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-7ae5p-c5e9981d97525bf8c62ac3f9e65d35c9 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>The <a href=\"\/pdf\/Humidity Equations.pdf\">formulas<\/a> used for the conversions come from General Eastern (Wobum, MA USA). This information is believed to be reliable, but we don&#8217;t make any warranty express or implied, as to its accuracy and assume no liability out of its use.<\/p>\n<\/div><\/section><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":13,"featured_media":0,"parent":218,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"class_list":["post-221","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>ORS Moisture Calculator | Oneida Research Services<\/title>\n<meta name=\"description\" content=\"The ORS Moisture Calculator is used to analyize the moisture content within a device.\" \/>\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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