VISUAL INSPECTIONS : underwater or rope access
• Digital videos & photos,
• Cathode protection checks,
• Dimensions checks (rudder clearance, mooring lines, etc).

ULTASONIC TESTING (UT) : underwater or rope access
• Thickness measurements,
• Corrosion tests,
• Weld defects detection...

MAGNETIC PARTICLES TESTING (MT) : underwater or rope access
• Daylight,
• UV light.

Assisting surveyor when access is difficult for making investigations. Thanks to our partnership with an independent marine surveyor’s office, overall evaluations can be made of a structure’s condition for purchase or repair projects.

L’octant teams carry out tests on offshore platforms above and below water level during the same mission. L’octant technicians are all divers and climbers.

ALTERNATING CURRENT FIELD MEASUREMENT (A.C.F.M.) underwater or rope access
• Crack detection

PENETRATION TESTING (PT) : using rope access
• Daylight,
• UV light.

PAINT COATING CHEKS : underwater or rope access
• Measuring coat thickness,
• Measuring structural thickness,
• Controlling adherence, porosity, hardness, and brightness,
• Assessing porosity, hardness and brightness
• Checking roughness, temperature and dew points

In refineries, l’octant tests are carried out on cables, flares, storages tanks, storages spheres, pipes, etc.

Thickness measurements of hulls or petrochemical structures are carried out under the authority of the companies affiliated with the IACS : Bureau Veritas - Dest Norske Veritas - Lloyd’s Register - American Bureau of Shipping - Germanischer Lloyd… This list is not exhaustive.