Draft Survey

Introduction
Draft survey is an effective method for rapidly estimating weight of cargos loaded by ship. Based on modern shipping theory as well as principles of economy and accuracy, it measures the displacement of water both before and after cargo unloading, the internationally recognized accuracy of which is less than 5‰.

Our surveyors work according to defined international guidelines and also consider several key factors while making their draft surveys. These factors include water density, cabin and fuel oil conditions, constants of ship, etc. As the pioneer in draught survey field, we enjoy exceptional advantages over other rivals.

Surveying Items
1. Weight of ore and ore sand in bulk
2. Weight of grain in bulk
3. Weight of coal in bulk
4. Constant of ship
5. Other cargos suitable for draught surveys