The basic principles of Dimensioning
The amount of desiccant required is usually calculated such that the relative humidity inside the packaging is kept below 40% during transport and storage. For correct dimensioning, all "four moisture types" have to be taken into account. The amounts of desiccant required may either be calculated using formulas or estimated according to experience.
By rule of thumb
Dimensioning Desi Dry and Din Dry using the rule of thumb.
According to container guidelines
Dimensioning Master Dry and SeaDry according to container guidelines.
According to guideline value for storage
Dimensioning for storage using desiccant units (DU).
According to DIN
Dimensioning according to DIN 55 474.