
DRAFT SURVEY
Accurate Weight Measurement for Bulk Cargo – Ensuring Transparency & Trade Integrity
At Gloster Standard Services, we provide Draft Survey solutions to accurately determine the weight of bulk cargo—especially solid bulk materials like coal, grains, ores, etc.—during loading or unloading operations. Our services follow international maritime guidelines to ensure your cargo measurement is precise, reliable, and fully compliant.
Purpose of a Draft Survey:
- Cargo Weight Determination: To accurately determine the weight of cargo loaded onto the vessel.
- Verification of Cargo Quantity: To verify the quantity of cargo loaded against the shipping documents.
- Prevention of Overloading: To ensure the vessel is not overloaded, which can compromise safety and stability.
Steps Involved in a Draft Survey:
- Pre-Survey Preparation: Gather necessary documents, including the vessel's stability booklet and cargo manifest.
- Initial Draft Measurement: Measure the vessel's draft before loading the cargo.
- Cargo Loading: Load the cargo onto the vessel.
- Final Draft Measurement: Measure the vessel's draft after loading the cargo.
- Calculation of Cargo Weight: Calculate the weight of cargo loaded using the difference in draft measurements and the vessel's displacement.
Benefits of a Draft Survey:
- Accurate Cargo Weight Determination: Ensures accurate calculation of cargo weight, which is essential for shipping and customs purposes.
- Prevention of Disputes: Helps prevent disputes between shipper, carrier, and receiver regarding cargo quantity and weight.
- Enhanced Safety: Ensures the vessel is not overloaded, reducing the risk of accidents and improving safety at sea.