What Does VGM Mean in Maritime Shipping and Detailed Explanation of Weighing Methods and Error ToleranceRanges

What Does VGM Mean in Ocean Shipping? A Detailed Explanation of the Weighing Method and Error Allowance Range

In ocean shipping, VGM Verified Gross Mass is an important concept that involves the weighing and volume calculation of cargo. This article will provide a detailed introduction to the meaning of VGM, the weighing method, and the allowable error range.

One, the Meaning of VGM

VGM is short for Volume Mass Volume Weight. It is a weight calculated based on the volume of goods in international freight transportation. Since the actual weight and volume of goods often fail to balance, VGM compensates for the deficiency of weight to some extent, providing a more reasonable way of weight calculation for cargo transportation.

Two, the Weighing Method

In ocean shipping, the weighing method for VGM usually includes the following steps

1. Determine the ship's carrying capacity Based on the ship's carrying capacity and hold size, determine the maximum weight and volume limits that each piece of cargo can bear.

2. Cargo weighing Use appropriate weighing equipment to weigh the cargo to ensure accuracy.

3. Record data Record the weighing results in relevant tables or systems for subsequent calculations and verification.

Three, the Allowable Error Range

In VGM calculation, the allowable error range is an important concept. It refers to the range within which the calculation result of VGM can still be considered reasonable despite certain weighing errors. Generally speaking, the allowable error range includes the following factors

1. Accuracy of weighing equipment Different weighing devices have different levels of precision, so the error range also varies. Generally speaking, the higher the precision, the smaller the error range.

2. Characteristics of the goods themselves The density, shape, and other characteristics of different goods also affect the calculation results of their actual weight and volume. In practical operations, it is necessary to conduct detailed analysis and measurement of the goods.

3. Factors during the transportation process Such as weather conditions and loading and unloading efficiency can also affect the weighing results of the cargo, thus influencing the error range.

Based on the above factors, the generally allowable error range for VGM is within 5%. In practice, the error range can be adjusted appropriately according to specific circumstances to ensure the accuracy of measurement.

In conclusion, VGM plays an important role in ocean shipping. By calculating the volume weight of cargo, it provides a more reasonable way of weight calculation for cargo transportation. To ensure the accuracy of VGM calculation, it is necessary to follow certain weighing methods and error allowance ranges and conduct detailed analysis and measurement of the cargo. In practical operations, adjustments need to be made according to specific circumstances to ensure the accuracy of measurement.