The remaining life of a vessel is 24 years. What is the maximum interval for the internal inspection?

For an above ground 'higher risk' vessel the maximum interval between external visual inspections is:

When determining the corrosion rate for a new vessel involved in changes in service conditions and the probable corrosion rate cannot be determined by either available data or experience of the owner/user, on-stream determination shall be made. What is the length of service recommended by API-510?

Inspection for corrosion under insulation (CUI) shall be considered for externally insulated vessels subject to moisture ingress and that operate between which of the following temperature range?

When performing an external inspection on a vessel what consideration should be given to the external insulation?