Tank Pressure testing:

→ All boundaries of water ballast tanks, deep tanks and cargo holds used for water ballast within the cargo length area should be pressure tested.

→ For fuel oil tanks, only representative tanks should be pressure tested.

→ Boundaries of ballast tanks should be tested with a head of liquid to the top of air pipes.

→ Boundaries of ballast holds should be tested with a head of liquid to near the top of hatches.

→ Boundaries of fuel oil tanks should be tested with a head of liquid to the highest point that liquid will rise under service conditions.

→ The testing of double-bottom tanks and other spaces not designed for the carriage of liquid may be omitted, if a satisfactory internal and tank top visual inspection is carried out.