STABILIZATION OF RH IN EXHIBITION CASES: HYGROMETRIC HALF-TIME

Abstract

A formula is derived with experimental support for predicting the RH changes inside an unsealed exhibition case containing a buffer such as silica gel. It is shown that a well-constructed case containing about 20 kg silica gel per cubic metre of case volume should constrain seasonal humidity variation within reasonable limits and in some climates make air conditioning unnecessary. However the formula proposed requires full-scale practical tests before adoption.