specification Whatman filter paper name: Grade 2V JIS standard JISP3801: Type 2 Ash content: 0.06% Thickness: 0.19mm Load capacity: medium Particle retention capacity: 8?m Filtration speed: medium Uses: It has slightly better retention capacity than No. 1, but the filtration speed is a little slower. Quantity: 1 box (100 sheets) Type: Round Size: 24.0cm