Cooper, Samuel A.; Glicksman, Leon R.; Peterson, Carl R.
([Cambridge, Mass.] : Massachusetts Institute of Technology, Energy Laboratory, 1984, 1984)
Joint leakage from low pressure natural gas distribution mains (typical value: 0.25 ft[superscript 3] at 6 inwg gas pressure) is a persistent source of maintenance problems for utitlites. External encapsulation is the usual ...