International. A new standard that will serve as a guide for the coating of plants trying to repair or replace buried pipe is already under analysis.
The ASTM WK36282 standard is being developed by the D33.02 subcommittee on Service and Materials Parameters that is part of the international ASTM D33 committee, and is intended to provide a method for identifying the existing coating system in a buried pipe and giving guidance for selecting a repair or rehabilitation coating system that would be applied if necessary.
Analysts indicate that many of the coatings applied in nuclear plants are more than 30 years old and that since that time there have been many improvements and innovations. The purpose of the standard is to assist in the identification of options for application.
The technical aspects to be analyzed in the ASTM WK36282 standard include:
- Function of buried pipe linings in nuclear power plants.
- Plant systems that may include buried pipe.
- Generic types of coatings applied in the field for repair and rehabilitation of buried pipe.
- In-situ factors that affect the selection of coatings applied on the ground for repair and rehabilitation of the buried pipe.
- ASTM and other standards used to evaluate the performance of field coatings for repair and refurbishment of buried pipe.
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