The weight of the goods is calculated according to the gross weight, and the unit of measurement is kg. Mantissa weighing less than 1 kg are rounded off. If the cargo weight of each air waybill is less than 1kg, it shall be calculated as 1kg. Valuables are calculated according to the actual gross weight, and the calculation unit is 0.1 kg. 

The weight of each cargo carried by non wide body aircraft is generally not more than 80 kg, and the volume is generally not more than 40 kg × sixty × 100 cm. The weight of each cargo carried by a wide body aircraft is generally not more than 250 kg, and the volume is generally not more than 100 × one hundred × 140 cm. 

For goods exceeding the above weight and volume, the carrier can determine the maximum weight and volume of goods that can be collected and transported according to the model and the loading and unloading equipment conditions of the airport of departure and destination. The sum of length, width and height of each cargo shall not be less than 40 cm.

 Goods with a volume of more than 6000 cubic centimeters per kilogram are light bubble goods. 

The weight of light goods is 1 kilogram per 6000 cubic centimeters.