Draft Survey
A Draft Survey is a widely accepted marine method used to determine the weight of cargo loaded or discharged from a vessel by measuring the ship’s displacement. The survey is conducted using draft readings, hydrostatic data, and water density to accurately calculate cargo quantity during loading or unloading operations.
Benefits Of Inspection
- Accurate Cargo Measurement
Provides a reliable method to determine the actual weight of bulk cargo loaded or discharged. - Independent Verification
Ensures transparency between shippers, receivers, and vessel operators. - Dispute Reduction
Minimizes conflicts related to cargo shortages or excess. - Compliance with International Practices
Follows IMO and industry-recognized draft survey procedures. - Efficient Monitoring
Supports smooth operations, reducing delays during port activities.
Scope of Service
- Initial & Final Draft Readings
Taking accurate draft measurements at forward, midship, and aft positions. - Hydrostatic Data Verification
Reviewing the vessel’s hydrostatic tables to determine displacement values. - Water Density Measurement
Checking dock water density using appropriate instruments. - Trim, List & Corrections Application
Applying necessary corrections for trim, list, hog, sag, and density variations. - Displacement Calculations
Computing initial and final displacements and determining cargo weight loaded or discharged. - Documentation & Reporting
Providing a detailed Draft Survey Report with calculations, observations, and photographic evidence.
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