Item                                       Factory Standard       

单位面积质量(Basic weight):       300g/㎡±25g/㎡           

厚度(Thickness):                       5.0mm±0.5 mm            

过滤效率(Filtration Efficiency):   >95%                       

透气率(Ventilation Property):     ≥1600L/㎡·s              

容尘量(Dust Holding):                ≥550g/㎡                   

孔径(Pore diameter):                 120-140μm                

拉伸强度(Tensile Strength):        ≥130N/5cm               

胀破强度(Bursting Strength):      >110N                    

耐热性(Heat Resistance):            >120℃