Piping standards shall be as required by 46 CFR Subchapter F. 5.4.3.2 Flanges must comply with ASME B16.5. Alternative piping arrangements require USCG approval. 5.4.6.2 Thermal stress relieving may not be waived. Radiography may not be reduced. No relaxations are permitted.
Recognized standards are ABS rules.
6.1.4.1 A Charpy V-Notch test is required. 6.1.4.2 Other tests may not be substituted for the Charpy V-Notch test. 6.1.5 Material properties must meet ABS rules. 6.1.7 Alternative chemical properties are not acceptable. No special approval is permitted.