This standard describes the materials and application of fused polyolefin
coating systems for buried service. This system is applied in pipe coating plants,
both portable and fixed, using coating techniques and equipment as recommended
by the manufacturer. Normally, these prefabricated, polyolefin coatings are applied
as a three-layer system consisting of (1) a liquid adhesive, (2) a corrosion-protection
inner layer, and (3) a mechanical-protection outer layer.
1.1.1 Maximum temperatures. This standard is intended for pipe in
potable-water service. Therefore, the maximum service temperature of this
coating is based on the maximum service temperature of potable water. These
coating systems will perform at higher temperatures. Consult the coating
manufacturer for conditions and limitations.
1.1.2 Conditions not described in this standard. This standard does not
describe the additional materials and procedures that may be required for difficult
conditions, such as those encountered in rocky areas and in construction of underwater
lines, casing pipe, and river crossings.
AWWA C225-2007 Referenced Document
ANSI/AWWA C203 Coal-Tar Protective Coatings and Linings for Steel Water Pipe*， 2020-10-26 Update
ANSI/AWWA C209 Tape Coatings for Steel Water Pipe and Fittings*， 2019-12-01 Update
ANSI/AWWA C216 Heat-Shrinkable Cross-Linked Polyolefin Coatings for Steel Water Pipe and Fittings*， 2023-02-01 Update
ASTM D1000 Standard Test Method for Pressure-Sensitive Adhesive-Coated Tapes Used for Electrical and Electronic Applications
ASTM D149 Standard Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials at Commercial Power Frequencies
ASTM D2196 Standard Test Methods for Rheological Properties of Non-Newtonian Materials by Rotational (Brookfield type) Viscometer
ASTM D4218 Standard Test Method for Determination of Carbon Black Content in Polyethylene Compounds By the Muffle-Furnace Technique*， 2008-11-01 Update
ASTM D441 Standard Test Method of Tumbler Test for Coal
ASTM D4417 Standard Test Methods for Field Measurement of Surface Profile of Blast Cleaned Steel
ASTM D570 Standard Test Method for Water Absorption of Plastics*， 2018-08-01 Update
ASTM D792 Standard Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement
ASTM D898 Standard Test Method for Applied Weight Per Unit Area of Dried Adhesive Solids
ASTM E96 Standard Test Method for Water Vapor Transmission of Materials
ASTM G12 Standard Test Method for Nondestructive Measurement of Film Thickness of Pipeline Coatings on Steel
ASTM G14 Standard Test Method for Impact Resistance of Pipeline Coatings (Falling Weight Test)
ASTM G17 Standard Test Method for Penetration Resistance of Pipeline Coatings (Blunt Rod)
NACE RP0188 Discontinuity (Holiday) Testing of New Protective Coatings on Conductive Substrates
AWWA C225-2007 history
2020AWWA C225-2020 Fused Polyolefin Coatings for Steel Water Pipe
2014AWWA C225-2014 Fused Polyolefin Coatings for Steel Water Pipe
2007AWWA C225-2007 Fused Polyolefin Coating Systems for the Exterior of Steel Water Pipelines
2003AWWA C225-2003 Fused Polyolefin Coating systems for the Exterior of Steel Water Pipelines First Edition