Coal-Tar Protective Coatings and Linings for Steel Water Pipe
|Publication Date:||26 October 2020|
This standard provides the minimum requirements for coal-tar protective coatings and linings used in the water supply industry for buried steel water pipelines.
AWWA steel pipe coating and lining standards are written for and based on the service temperature of potable water. For operating temperatures higher than the normal temperature of potable water, consult the manufacturer for recommendations concerning temperature limitations for coal-tar protective coatings and linings.
Because aboveground and environmental conditions vary, the purchaser should consult the manufacturer as to type of coating that is recommended for the specific anticipated storage conditions, including the necessity for ultraviolet-light protection.
Safety and environmental considerations.
The components of the coal-tar system may contain skin irritants and may be flammable. Precautions should be taken to protect against these hazards and to comply with the manufacturer's recommendations concerning the use and handling of the components.
The purpose of this standard is to provide the requirements for coal-tar protective coatings and linings for steel water pipelines-enamel and tape-hot applied, including materials, application, verification, and delivery.