Abstract
The following items on moisture-proof packaging as corrosion preventive method for metal products, were studied:
1) The characteristies of moisture absorption of desiccants.
2) A convenient method for mutual conversion of moisture permeabilities under various atmospheric conditions.
3) Calculation of moisture permeability of barrier materials under variable atmospheric conditions.
4) Change of interior relative humidity of moisture-proof package.
Thus, an equation using parameters, i.e. quantity of desiccant, moisture permeability of barrier material and atmospheric condition, was specified in JIS-Z-0303 (General Rule of Rust Preventive Packaging Method).
