Films were conditioned prior subjecting to
permeability and mechanical tests according to the
Standard Method D618-61 (ASTM, 1993). Films
were conditioned at 53% RH and 27 ±2oC by placing
them in desiccators over a saturated solution of
Mg(NO3)2.6H2O for at least 72 hours. These films
were used for water vapour permeability test (WVP),
oxygen permeability test (OP), Tensile Strength (TS)
and Elongation At Break (EAB). For other tests,
films were transferred to plastic bags after peeling
and placed in desiccators.