Dimensioning Desi Dry and Din Dry using the rule of thumb
The following simplified calculation can be used to estimate how much desiccant is needed:
10 times the amount of water (in grammes) = required amount of desiccant (in grammes)
Please note: Because of their higher capacities Master Dry and SeaDry products require smaller amounts (Check diagram in the Master Dry / SeaDry section).
Metal machine parts without packaging materials (carton, wood) are to be kept dry in a one m³ wooden crate lined with barrier film over the course of 4 weeks.
This calculated example results in approximately 65g water.
|Die The machinery elements are made of metal||Moisture in the merchandise||approx 0 g|
|There are no moisture-retaining materials enclosed (cardboard, wood)||Moisture of the materials enclosed||approx 0 g|
|According to the Climate Chart, in a wooden crate 1 m³ in size, at 45° C there may be a max. of 65.44 g of water||Moisture in the air||approx 65,44 g|
|The permeability of the barrier-layer foil to moisture during a four-week period of transport or storage is negligible. |
It is very low in comparison with the moisture in the air
|Moisture through outer envelope||approx 0 g|
This example calculation yields moisture amounting to approx 65 g of water.
Result: 65 g water x 10 = 650 g desiccant
Longer transport and storage times increase the influence of humidity migrating through the barrier. An exact calculation according to DIN can be found under dimensioning according to DIN.