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Tensile Tests (14.2)
Criticality: High
Progress: Addressed, Not Adequately
Score: 20
DOT Relevance: §192.501 – §192.517
Description of Key Area
Tensile 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
Tensile testing is a critical area because it is one of the
procedures to test the integrity of the material to be used for hydrogen pipe.
Tensile testing is a recommended test for hydrogen piping and a recommended
test in general for any material.
If composite materials are used for hydrogen pipelines, tensile
tests may not be relevant. Other forms of testing may be more appropriate for
composite materials and polyethylene pipe materials.
Discussion of Progress
No information found.
Recommendations
ASME B31.12 will incorporate tensile tests if they are necessary
for design safety. Standards for test requirements for hydrogen pipe should be
established and incorporated by reference into the federal code.
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