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CGA C-27
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CGA C-27-2019 provides a standard procedure to derate the service pressure of U.S. DOT 3-series seamless steel tubes with local thin areas that do not meet the minimum wall thickness of certain DOT specifications. This process shall be performed by a DOT qualified facility.
This publication does not apply to tubes that have been condemned from any requalification method.
This publication does not apply to tubes that have been condemned from any requalification method.