Tank calibration and capacity-table services

ITVC Global calibrates shipboard and shore tanks and prepares capacity tables, using laser surveying to measure tank geometry.

Tank types covered

• Vertical cylindrical tanks.
• Horizontal cylindrical tanks.
• Spherical tanks.
• Cargo tanks on oil tankers.
• Cargo tanks on barges.

Measurement methods and reference standards

A. API MPMS — Tank measurement and calibration

• API MPMS 2.2A: manual tank strapping.
• API MPMS 2.2B: optical reference line method (ORLM).
• API MPMS 2.2C: optical triangulation method (OTM).

B. ISO 7507-4:2010

ISO 7507-4:2010: internal electro-optical distance-ranging for calibrating vertical cylindrical tanks and compiling capacity tables; its scope covers tanks over 5 m in diameter. The method must suit the tank geometry, dimensions and conditions.

ISO — ISO 7507-4:2010

API MPMS method references in the Federal Register

Source diagrams and photograph