1. visual inspection of dust bag: dark spots, jumpers, puncture, defects, disconnection, and other joints. 2. Mechanical properties: such as dust bag breaking strength, elongation at break, bag of latitude and longitude to the load elongation, bursting strength of filter media and the like. 3. Dust features: such as the drag coefficient, static dust removal efficiency, dynamic collection efficiency filter dynamic resistance, resistance coefficient and dust stripping regeneration rate. 4. Special feature: as temperature resistance, corrosion resistance, electrostatic properties, hydrophobicity and the like. 5. Physical properties: If the unit mass of dust bag area, thickness, amplitude, woven tissue, fabric density, non-woven fabric bulk density, porosity and the like.
