WHA1540324
Whatman® quantitative filter paper, hardened ashless, Grade 540
circles, diam. 24 mm, pack of 100
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Synonym(s):
Whatman filter, Z740632, filter paper, paper filter
UNSPSC Code:
41104900
NACRES:
NB.24
Recommended Products
material
circles
cotton filters (high-quality cotton linters)
packaging
pack of 100
manufacturer/tradename
Whatman 1540-324
Whatman Article No. 28418228 (US reference)
parameter
200 sec/100 mL speed (Herzberg)
7 psi wet burst
diam.
24 mm
thickness
160 μm
ash
≤0.006%
pore size
8 μm (Particle retention)
basis weight
85 g/m2
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General description
These are the hardened ashless supreme quantitative filter papers featuring high wet strength and chemical resistance. These papers are acid hardened, which reduces ash to an extremely low level. Their tough surfaces make them suitable for a wide range of critical analytical filtration operations. Each grade offers a convenient combination of filtration speed and particle retention.
Grade 540: 8 μm (medium filter paper)
The general purpose hardened ashless filter paper with medium retention and flow rate. Extremely pure and strong with a hard surface. High chemical resistance to strong acid and alkali. Frequently used in the gravimetric analysis of metals in acid/alkali solutions and in collecting hydroxides after precipitation by strong alkalis.
Grade 540: 8 μm (medium filter paper)
The general purpose hardened ashless filter paper with medium retention and flow rate. Extremely pure and strong with a hard surface. High chemical resistance to strong acid and alkali. Frequently used in the gravimetric analysis of metals in acid/alkali solutions and in collecting hydroxides after precipitation by strong alkalis.
Other Notes
Field of Use : For internal research use only. Products are not intended for diagnostic use or resale.
Legal Information
Whatman is a registered trademark of Cytiva
Regulatory Information
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Certificates of Analysis (COA)
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