Hydrogen pipe embrittlement testing falls under Subpart J (Test
Requirements) of 49 CFR 192. Per the Code, “This subpart prescribes minimum
leak-test and strength-test requirements for pipelines.”
Discussion of Criticality
An ASTM standard (ASTM F519) has been created to provide for
hydrogen pipeline embrittlement evaluation.
Discussion of Progress
As this is a relatively new topic, even though an ASTM document has
been established, the subject should still be monitored.
Recommendations
Once the adequacy of ASTM F519 has been evaluated against the
ongoing embrittlement research, the established standard should be incorporated
by reference into the federal code.
