What is substantial corrosion?
Short answer
| Aspect | Detail |
|---|---|
| Definition | Wastage >75% of allowable margins, within acceptable limits |
| CSR interpretation | Gauged thickness between tnet + 0.5 mm and tnet |
| Source | 2011 ESP Code, IMO Resolution A.744(18), IACS Rec 96 |
- Definition: wastage exceeding 75% of allowable margins but within acceptable limits
- CSR ships: gauged thickness between tnet + 0.5 mm and tnet
- Instruments: 2011 ESP Code, IMO Resolution A.744(18), IACS Recommendation 96
- Action: increase thickness measurements where substantial corrosion is found
Full answer
The full answer explains each point step by step, with the regulations and figures behind it and the discussion from other candidates. It is in the MEO Class II section of the Marine One forum, open to members enrolled for the MEO Class II exam.