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Suggested Citation:"Appendix E: Acronyms." National Research Council. 2009. Review of the Bureau of Reclamation's Corrosion Prevention Standards for Ductile Iron Pipe. Washington, DC: The National Academies Press. doi: 10.17226/12593.
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Page 171
Suggested Citation:"Appendix E: Acronyms." National Research Council. 2009. Review of the Bureau of Reclamation's Corrosion Prevention Standards for Ductile Iron Pipe. Washington, DC: The National Academies Press. doi: 10.17226/12593.
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Page 172

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Appendix E Acronyms ANSI American National Standards Institute ASCE American Society of Civil Engineers AWWA American Water Works Association CIP cast iron pipe CLSM controlled low-strength material CP cathodic protection dc direct current DDM Design Decision Model DIP ductile iron pipe DIPRA Ductile Iron Pipe Research Association DOT U.S. Department of Transportation ER electrical resistance IMP Integrity Management Program MIC microbiologically influenced corrosion NACE National Association of Corrosion Engineers NBS National Bureau of Standards (now National Institute of Standards and Technology [NIST]) 171

172 Corrosion Prevention Standards for Ductile Iron Pipe OMR&E operation, maintenance, replacement, and energy OPS Office of Pipeline Safety PE polyethylene encasement PHMSA Pipeline and Hazardous Materials Safety Administration SRB sulfate-reducing bacteria TM technical memorandum WEB Walworth, Edmunds, and Brown WSSC Washington Suburban Sanitary Commission YDI yellow-jacketed ductile iron

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 Review of the Bureau of Reclamation's Corrosion Prevention Standards for Ductile Iron Pipe
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Ductile iron pipe (DIP) was introduced about 50 years ago as a more economical and better-performing product for water transmission and distribution. As with iron or steel pipes, DIP is subject to corrosion, the rate of which depends on the environment in which the pipe is placed. Corrosion mitigation protocols are employed to slow the corrosion process to an acceptable rate for the application. When to use corrosion mitigation systems, and which system, depends on the corrosivity of the soils in which the pipeline is buried.

The Bureau of Reclamation's specification for DIP in highly corrosive soil has been contested by some as an overly stringent requirement, necessitating the pipe to be modified from its as-manufactured state and thereby adding unnecessary cost to a pipeline system.

This book evaluates the specifications in question and presents findings and recommendations. Specifically, the authoring committee answers the following questions:

  • Does polyethylene encasement with cathodic protection work on ductile iron pipe installed in highly corrosive soils?
  • Will polyethylene encasement and cathodic protection reliably provide a minimum service life of 50 years?
  • What possible alternative corrosion mitigation methods for DIP would provide a service life of 50 years?

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