Home NI364 Verification Scheme for Unbonded Flexible Pipes This Guidance Note describes the certification scheme related to unbonded flexible pipes with their end-fittings designed and manufactured as per API 17J standard specifications. ReferenceTitleDateNI364 R01Verification scheme for unbonded flexible pipesApr 2022Check related documents:NI525 Risk-based qualification of new technology - methodological guidelinesCheck other Bureau Veritas rules and guidelines.