Reference Guage A gauge of known accuracy used as a standard against which other gauges may be calibrated. See also PEI/RP300. By rhys|2014-10-22T14:32:32+00:00October 22nd, 2014|Comments Off on Reference Guage Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkXingEmail About the Author: rhys