Basis Weight: 130±5gsmFilter paper width (height) available: 100mm- 1600mm; Thickness: 0. 45mmDiameter of the roll: Around 78cmAir permeability at 200Pa: 350- 500 L/ M2. SCorrugation Depth 0. 25mmMullen (bursting strength) >=200kpaMaximum Pore Size 75umVolatile Content 4%