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WHA1004125

Whatman® qualitative filter paper, Grade 4

circles, diam. 125 mm, pack of 100

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Synonym(s):
Whatman filter, Whatman filters, Whatman paper, Z240567, filter paper, filter papers, paper filter
NACRES:
NB.24

material

cellulose filters
circles

packaging

pack of 100

manufacturer/tradename

Whatman 1004-125
Whatman Article No. 28414014 (US reference)

parameter

0.22 psi wet burst
37 sec/100 mL speed (Herzberg)

diam.

125 mm

thickness

205 μm

ash

≤0.06%

pore size

20-25 μm (Particle retention)

basis weight

92 g/m2

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This Item
WHA1004110WHA1004150WHA1004185
packaging

pack of 100

packaging

pack of 100

packaging

pack of 100

packaging

pack of 100

manufacturer/tradename

Whatman 1004-125, Whatman Article No. 28414014 (US reference)

manufacturer/tradename

Whatman 1004-110, Whatman Article No. 28414013 (US reference)

manufacturer/tradename

Whatman 1004-150, Whatman Article No. 28414015 (US reference)

manufacturer/tradename

Whatman 1004-185, Whatman Article No. 28414016 (US reference)

parameter

0.22 psi wet burst, 37 sec/100 mL speed (Herzberg)

parameter

0.22 psi wet burst, 37 sec/100 mL speed (Herzberg)

parameter

0.22 psi wet burst, 37 sec/100 mL speed (Herzberg)

parameter

0.22 psi wet burst, 37 sec/100 mL speed (Herzberg)

diam.

125 mm

diam.

110 mm

diam.

150 mm

diam.

185 mm

pore size

20-25 μm (Particle retention)

pore size

20-25 μm (Particle retention)

pore size

20-25 μm (Particle retention)

pore size

20-25 μm (Particle retention)

General description

These cellulose filters are used in qualitative analytical techniques to determine and identify materials. Prepleated qualitative filters are also available, which give improved flow rate and increased loading capacity compared to equivalent flat filters.

Grade 4: 20-25 μm, (very fast filter paper)

Extremely fast filtering with excellent retention of coarse particles and gelatinous precipitates such as ferric hydroxide and aluminum hydroxide. Very useful as a rapid filter for routine clean-up of biological fluids or organic extracts during analysis. Used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical.

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

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