Whatman 1540-10123 Quantitative Filter Papers, Hardened Ashless, Grade 540, 9CM, 1000 pc

Grade 540 9CM PYRAMID 1000/PK
Whatman Grade 540 is a high-purity, acid-treated cellulose lab Filter Paper. Mechanically strong Grade 540 is well suited for quantitative or gravimetric analysis of strongly acidic or alkaline samples.