Technical Specification of-CAEN300 Item              Factory Standard      Testing Standard 单位面积质量(Basic weight):    430 ±30g/㎡              GB451.2-89 厚度(Thickness):                2.0 ±0.3mm              GB451.4-89    过滤效率(Filtration Efficiency):   ≥88%                         / 透气率(Ventilation Property):     ≥1800L/㎡·s               GB/T5453.97 容尘量(Dust Holding):          ≥300g/㎡                       / 孔径(Pore diameter):            110-130μm                GB/T14799-94 拉伸强度(Tensile Strength):      ≥120N/5cm               GB/T13763.92 胀破强度(Bursting Strength):     >65N                      GB/T14800-93 耐热性(Heat Resistance):         >130℃