... Certification: DNV, BV, ABS, CCS, Velosi, Moody, etcSpecification and Dimension: meet virous requirementsStandards of Product: DNV-RP-B401 Cathodic ... RP-0387 Metallurgical and inspection requirements for cast sacrificial anodes for offshore applicationsNACE RP-04-92 Metallurgical and inspection requirements for offshore pipeline ... .006%Max.0.05%-0.15% Zinc Anode for ship,Sacrificial or Galvanic Anodes