2 Maximum gross mass

2.1          Freight containers, like all CTUs, have a maximum gross operating mass or rating which is shown both on the CSC safety approval plate (see figures 4.1, 4.2 and 4.3) and on the rear end of the freight container (see figure 4.7).

Figure 4.7 Rear of freight container

2.2          The two values shown on a freight container should be the same, however if they are different the value shown on the CSC safety approval plate should be used.

2.3          The tare mass shown in the figure relates to the empty mass of the freight container and should always be shown on the rear end of the freight container. This value will include any permanently attached equipment such as an integral refrigeration unit, but will not include items that are attached, such as a nose mounted generator (clip on unit).

2.4          The maximum payload (or net mass) may be shown on the rear of the freight container, however the correct method for calculating the maximum mass of cargo that the freight container can carry is: