Whatman quantitative filter paper, hardened ashless, Grade 540, circles, diam. 240 mm, pack of 100

SKU:
WHA1540240
$232.00

Description

Whatman quantitative filter paper, hardened ashless, Grade 540, circles, diam. 240 mm, pack of 100

Synonym(s):
Whatman filter, Z241628, filter paper, paper filter
NACRES:
NB.24

material

circles
cotton filters (high-quality cotton linters)

packaging

pack of 100

manufacturer/tradename

Whatman 1540-240
Whatman Article No. 28418224 (US reference)

parameter

200 sec/100 mL speed (Herzberg)
7 psi wet burst

diam.

240 mm

thickness

160 μm

ash

≤0.006%

pore size

8 μm (Particle retention)

basis weight

85 g/m2

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.

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