Primary Containment The ability of an enclosed design or construction to directly contain a liquid while in normal use. See also PEI/RP800. By rhys|2014-10-22T01:26:46+00:00October 22nd, 2014|Comments Off on Primary Containment Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkXingEmail About the Author: rhys