AGA Z380112

Guide for Gas Transmission and Distribution Piping Systems, 2012 Edition (ANSI Z380.1-2012), Includes Addendum 1 (2012), 2 (2013), 3 (2013), 4 (2013), 5 (2014), 6 (2014), and 7 (2014)
standard by American Gas Association, 2012

AGA XQ0009

ANSI B109.2-2000 (R2008) for Diaphram-Type Gas Displacement Meters (500 Cubic Feet Per Hour Capacity and Over)
standard by American Gas Association, 01/01/2000