ASTM G218-19
Standard Guide for External Corrosion Protection of Ductile Iron Pipe Utilizing Polyethylene Encasement Supplemented by Cathodic Protection

Standard No.

ASTM G218-19

Release Date

2019

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM G218-19

Scope

1.1 This guide will discuss standard practices which have been successfully utilized in the field for over 35 years to provide external corrosion protection of polyethylene encased ductile iron pipe supplemented with cathodic protection (CP). This guide may also be used for ductile iron fittings, valves, and other appurtenances specific to ductile iron pipe systems. Case histories and publications reporting on the use of cathodic protection to supplement polyethylene encasement are included as an Appendix in this guide. 1.2 Other external corrosion control methods which have been used for ductile iron pipe include, but are not limited to: cathodic protection, metallic zinc coatings, bonded dielectric coatings, dielectric coatings with cathodic protection, and trench improvement. Detailed information on these methods of protection are available from other sources and are beyond the scope of this guide. 1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM G218-19 Referenced Document

• ANSI/AWWA C105/A21.5 Polyethylene Encasement for Ductile-Iron Pipe Systems
• ANSI/AWWA C110/A21.10 Ductile-Iron and Gray-Iron Fittings*， 2022-04-01 Update
• ANSI/AWWA C111/A21.11 Rubber-Gasket Joints for Ductile-Iron Pressure Pipe and Fittings
• ANSI/AWWA C151/A21.51 Ductile-Iron Pipe, Centrifugally Cast
• ANSI/AWWA C600 Installation of Ductile- Iron Mains and Their Appurtenances
• ASTM A674 Standard Practice for Polyethylene Encasement for Ductile Iron Pipe*， 2022-10-01 Update
• ASTM A746 Standard Specification for Ductile Iron Gravity Sewer Pipe
• ASTM D149 Standard Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials at Commercial Power Frequencies
• ASTM D1709 Standard Test Methods for Impact Resistance of Plastic Film by the Free-Falling Dart Method
• ASTM D1922 Standard Test Method for Propagation Tear Resistance of Plastic Film and Thin Sheeting by Pendulum Method*， 2023-05-15 Update
• ASTM D4976 Standard specifications for polyethylene plastic molding and extrusion materials*， 2024-04-22 Update
• ASTM D882 Standard Test Method for Tensile Properties of Thin Plastic Sheeting
• ASTM G187 Standard Test Method for Measurement of Soil Resistivity Using the Two-Electrode Soil Box Method*， 2023-11-01 Update
• ASTM G193 Standard Terminology and Acronyms Relating to Corrosion*， 2022-08-01 Update
• ASTM G200 Standard Test Method for Measurement of Oxidation-Reduction Potential (ORP) of Soil*， 2020-11-01 Update
• ASTM G215 Standard Guide for Electrode Potential Measurement
• ASTM G51 Standard Test Method for Measuring pH of Soil for Use in Corrosion Testing
• ASTM G57 Standard Test Method for Field Measurement of Soil Resistivity Using the Wenner Four-Electrode Method
• ASTM G97 Standard Test Method for Laboratory Evaluation of Magnesium Sacrificial Anode Test Specimens for Underground Applications
• ISO 8179 Ductile iron pipes; External zinc coating
• ISO 8180 Ductile iron pipelines — Polyethylene sleeving for site application*， 2020-06-26 Update

ASTM G218-19 history

• 2019 ASTM G218-19 Standard Guide for External Corrosion Protection of Ductile Iron Pipe Utilizing Polyethylene Encasement Supplemented by Cathodic Protection