Underwater Hull Thickness Testing measures the metal thickness of a ship's hull to assess corrosion and structural integrity. Underwater Hull Inspection involves visual and non-destructive examination to detect damage, fouling, or defects. Both are critical for ensuring vessel safety, compliance, and operational efficiency.

Underwater Hull Thickness Testing:

- Size: Typically 50-500 mm probe diameter

- Grade: Conforms to ASTM E797, ISO 10893-11 standards

- Viscosity: Couplant gel with viscosity 500-2000 cP

- Buoyancy: Neutral or slightly negative for stability

- Material: Titanium or stainless steel probes, waterproof housing

Underwater Hull Inspection:

- Size: ROVs range from 0.5-2 m in length

- Grade: Compliant with IMO PSPC, Class Society rules

- Viscosity: N/A (visual/NDT methods)

- Buoyancy: Adjustable buoyancy systems (0-50 kg lift capacity)

- Material: Carbon fiber, anodized aluminum, polyurethane seals