Quantitative disc filter paper, slow flow rate, Ø90 mm, 100 pcs

Ash-free paper (max 0.002%) made exclusively of cellulose cotton fibers. Used for critical gravimetrical analysis. Surface weight 80 g/m², pore 7 - 9 ?m, thickness 290 ?m. Available in flat disks. Equivalent to: Whatman 42

sales unit reference: QNDS-090-100, Ø (mm): 90, type: disk, pcs per sales unit: 100