Page 207 - Pipeline Pigging Technology
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Pipeline  Pigging  Technology


         3.  Data  collected  to  date  indicates corrosion  has  been  most  severe  in
      specific  areas of the  800-mile pipeline.
         4. Based on the field excavations to date, ultrasonic corrosionpigs provide
      more specific corrosion data generally more accurately than do magnetic-flux
      pigs.


         Author's note


         The  data  presented  in  this  paper  are  not  final  results,  but  rather  a
      "snapshot" of a continuing process. The data is preliminary and should not be
      thought of as a final determination. Rather, this data should be considered as
      indications or trends which need to be continually observed and monitored.
      Lastly, it must be remembered that this data is limited to the equipment and
      the experiences within the context of this paper.








































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