The standards of GB1037 and GB/T2679.2 require the determination of the water vapor permeability of plastic films, sheets, aluminum and platinum for packaging and paper and other materials:
【Scope of application】 The moisture-permeable cup is mainly used for the determination of water vapor permeability of plastic film, sheet, aluminum platinum for packaging and paper. Fully meet the requirements of GB1037 and GB/T2679.2 standards. The composition of the breathable cup: five parts: gland, cup ring, cup, guide ring and cup stand 【technical parameter】 1. The inner diameter of the cup ring: Φ60mm 2. Inner diameter of cups and dishes: Φ60mm 3. Effective area: 28.3cm2 4. Quality of cup and cup ring: 69g 5. Material: aluminum alloy