Whatman® Grade 540, Hardened Ashless Filter Paper

Whatman® Grade 540 Fitler Paper is a general purpose hardened ashless filter paper with medium retention and flow rate. It is extremely pure and strong with a hard surface. High chemical resistance to strong acid and alkali. It is frequently used in the gravimetric analysis of metals in acid/alkali solutions and in collecting hydroxides after precipitation by strong alkalis.

Whatman® Grade 540 Fitler Paper has a particle filtration size of 8 μm at 98% efficiency.

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WHA1540042 Whatman® quantitative filter paper, hardened ashless, Grade 540 circles, diam. 42.5 mm, pack of 100
WHA1540055 Whatman® quantitative filter paper, hardened ashless, Grade 540 circles, diam. 55 mm, pack of 100
WHA1540090 Whatman® quantitative filter paper, hardened ashless, Grade 540 circles, diam. 90 mm, pack of 100
WHA1540110 Whatman® quantitative filter paper, hardened ashless, Grade 540 circles, diam. 110 mm, pack of 100
WHA1540125 Whatman® quantitative filter paper, hardened ashless, Grade 540 circles, diam. 125 mm, pack of 100
WHA1540150 Whatman® quantitative filter paper, hardened ashless, Grade 540 circles, diam. 150 mm, pack of 100
WHA1540185 Whatman® quantitative filter paper, hardened ashless, Grade 540 circles, diam. 185 mm, pack of 100
WHA1540240 Whatman® quantitative filter paper, hardened ashless, Grade 540 circles, diam. 240 mm, pack of 100
WHA1540324 Whatman® quantitative filter paper, hardened ashless, Grade 540 circles, diam. 24 mm, pack of 100
WHA1540321 Whatman® quantitative filter paper, hardened ashless, Grade 540 circles, diam. 21 mm, pack of 100