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WHA10313953

Whatman® application specific filter, prepleated qualitative filter paper, Grade 2555 1/2

circles, diam. 320 mm, pack of 100

Synonym: Whatman filter, Whatman paper, Z695955, paper filter

  •  NACRES NB.24

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Properties

Related Categories Filtration Supplies, Labware, Manufacturer Browser, Qualitative, Qualitative and quantitative filter papers,
material   cellulose membrane
  circles
sterility   non-sterile
packaging   pack of 100
mfr. no.   Whatman Article No., 28414329 (US reference)
  Whatman, 10313953
parameter   55 sec/100 mL speed (Herzberg)
diam.   320 mm
thickness   170 μm
pore size   7-12 μm (Particle retention)
basis weight   75 g/m2

Description

General description

Grade 2555 1/2 A medium fast filter paper. Used for the filtration of the mash for the determination of the extract in malt and wort and for removing carbon dioxide from beer.
• Particle retention in liquid (μm): 7 - 10
• Filtration speed (approx.) herzberg (s): 55
• Typical thickness (μm): 170
• Basis weight (g/m2): 75

Time-saving Whatman qualitative grades are offered in this convenient form, which gives major advantages over flat circles:

• Savings in time required to quadrant-fold circles to fit conical filter funnels in repetitive or multiple analyses
• Decreased overall filtration time because of the extra surface area exposed; the normal slow down of filtration speed due to the loading of particulate is postponed
• Increased total loading capacity as more filter area is available
• Maintained flow rate due to the reduction in filter paper contact with funnel side and, the self-supporting shape of the filter itself
• The prepleating does not significantly affect any of the technical data and the same figures may be used for the flat circles

Grade 2555 ½ : 7-12 mm (medium fast filter paper)
A medium fast filter paper. Application specific, used for the filtration of the mash for the determination of the extract in malt and wort and for removing carbon dioxide from beer.

Other Notes

Field of Use : For internal research use only. Products are not intended for diagnostic use or resale.

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Documents

Certificate of Analysis (COA)

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Protocols & Articles

Articles

Whatman™ Filter papers for use in the Beer Industry

Quality control (QC) methods used by the brewing industry are published by a number of national and international bodies such as the European Brewery Convention (EBC), Mitteleuropäische Brautechnisch...
Keywords: Coagulation, Fermentation, Filtration, Fractionation, Iodometric titrations, Precipitation, Reductions, Sample preparations, Separation

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