ASME B31.8-2003(Revision of ASME B31.8-1999)GASTRANSMISSIONAND DISTRIBUTIONPIPING SYSTEMSASME CODE FOR PRESSURE PIPING,B31AN AMERICAN NATIONAL STANDARDThe American Society ofMechanical Engineersith ASMENat ior ResaleThe American Society ofMechanical EngineersAMERICANN AT I O N A LST A N D A R DGAS TRANSMISSIONAND DISTRIBUTIONPIPING SYSTEMSASfB31.8-2003(Revision of ASME B31.8-19)ASME CODE FOR PRESSURE PIPING,B31mmeNat or Resale