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WHA1440070

Whatman® quantitative filter paper, ashless, Grade 40

circles, diam. 70 mm, pack of 100

Synonym(s):

Whatman filter, Whatman paper, Z241253, filter papers, paper filter

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About This Item

UNSPSC Code:
41104900
NACRES:
NB.24

material

circles
cotton filters (high-quality cotton linters)

packaging

pack of 100

manufacturer/tradename

Whatman 1440-070
Whatman Article No. 28417991 (US reference)

parameter

0.29 psi wet burst
340 sec/100 mL speed (Herzberg)

diam.

70 mm

thickness

210 μm

ash

≤0.007%

pore size

8 μm (Particle retention)

basis weight

95 g/m2

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Features and Benefits

  • High-purity filters contain 0.007% maximum ash content
  • Medium nominal particle retention rating of 8 µm
  • Medium filtration speed (Herzberg 340 s)
  • Particularly useful for gravimetric analysis

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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