Commodities are grouped into one of 18 classes from a low of class 50 to a high of class 500 based on an evaluation of four transportation characteristics: density, stowability, handling and liability.
Patience implies suffering, enduring or waiting, as a determination of the will and not simply under necessity. As such it is an essential Christian virtue to the exercise of which there are many exhortations.
That is, patience is not a fundamental virtue so much as a complex of other virtues. An example from the life of Christ illustrates this. Jesus was very patient with his disciples. They were sometimes thickheaded, lazy, selfish, and slow to believe.