... Thus,it has widely used in instruments,meter,equipments,leather,bags,shoes,textiles,food,medicines to control the relative humidity of ... Standard by GB10455-89: when RH = 90% qualified product ≥ 28% first class product≥ 29% 30% superior product≥30%Advantage1.Environmental,DMF ... 3.it has widely used in instruments,meter,equipments,leather,bags,shoes,textiles,food,medicines to anti-mold Application.