Book by American Gas Association,
Addendum 6 to GPTC Guide for Gas Transmission and Distribution Piping Systems (ANSI Z380.1-2009), 2009 Edition
Amendment by American Gas Association, 06/22/2011
Book by American Gas Association,
AGA Report No. 5, Natural Gas Energy Measurement
Report / Survey by American Gas Association, 03/01/2009
Book by American Gas Association, 01/01/1996
Guide for Gas Transmission, Distribution, and Gathering Piping Systems, 2018 Edition (ANSI Z380.1-2018), Includes Addendum 1 (2018), Addendum 2 (2019), Addendum 3 (2019) and Addendum 4 (2019)
standard by American Gas Association, 06/01/2018
Addendum 4 to GPTC Guide for Gas Transmission and Distribution Piping Systems (ANSI Z380.1-2009), 2009 Edition
Amendment by American Gas Association, 08/30/2010