ASTM, ASTM A106-2006, ASTM A312-2001, ASTM A53-2007, ASTM A789-2001, ASTM A182-2001, ANSI A213-2001, ASTM A234-2007, ASTM A335-2006, ASTM A333-2005, ASTM A53M-2007, ANSI B36.10M-2004, ASME B36.10M-2004, ASTM A660-1996, ASME B36.19M-2004, ASTM A335M-2006