Filter paper for Kiriyama funnel φ185mm 50 sheets No.5B 1 box (50 sheets)

This filter paper is for Kiriyama funnels and comes in a variety of diameters to fit each funnel. Filter paper name: No.5B Retention particles: 4μ Filtration speed: somewhat fast Thickness: 0.22mm Ash content (at 5.5cm round): 0.00004g Use: For normal precipitation Material: Cellulose Quantity: 1 box (50 sheets) Diameter: φ185mm Model number: No.5B RoHS2 (EU)2015/863 compliant [About RoHS]