1.0NC State's Milliken Textile Protection and Comfort Centerhttps://textiles.ncsu.edu/tpacctextilesdevadminhttps://textiles.ncsu.edu/tpacc/author/textilesdevadmin/rich600338<blockquote class="wp-embedded-content" data-secret="FS2HM4Vs5U"><a href="https://textiles.ncsu.edu/tpacc/chemical-protection/permeation/">Permeation</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://textiles.ncsu.edu/tpacc/chemical-protection/permeation/embed/#?secret=FS2HM4Vs5U" width="600" height="338" title="“Permeation” — NC State's Milliken Textile Protection and Comfort Center" data-secret="FS2HM4Vs5U" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://textiles.ncsu.edu/tpacc/wp-includes/js/wp-embed.min.js </script> Protective clothing worn by personnel working with liquid and gaseous chemicals is designed to reduce direct skin contact. Chemical liquids and gases can pass through the clothing barrier by permeation, i.e. transport at a molecular level via sorption, diffusion, and desorption. TPACC evaluates material performance using the test cell and procedures indicated in the ASTM…https://textiles.ncsu.edu/tpacc/wp-content/uploads/sites/6/2015/02/permeation-01.jpg