642 Filter Papers by Ahlstrom Corporation
 
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642 Filter Papers by Ahlstrom Corporation

  • Ahlstrom 642: 2µm - Medium Speed
  • This grade has finer particle retentionthan Ahlstrom 601 but with slightly lowerfiltration speed
  • Ahlstrom 642 also has higher absorption than Ahlstrom 601
  • It is used in general laboratory applications to retain particles above 2 µm in size
  • Ahlstrom 642 is also found in agricultural and environmental laboratories for plant growth trials, soil testing, and air analysis for monitoringspecific contaminants and in the filtration oforganic and sulfide precipitates
  • Ahlstrom's qualitative grades of filter paper are, bydefinition, recommended for use in analytical methods,which determine or identify particulate constituents of a mixture irrespective of the amount present.
  • Qualitative filter papers are often used in routine separation work that still requires high purity andconsistent performance
  • Ahlstrom offers a complete range of low ash filter papers for general laboratory work that provides you with the correct combination of particle retention, filtration speed, loading capacity and wet-strength
  • All our qualitative grades consistof > 95% super refined #-cellulose and linter fibers
  • Standard qualitative filter papers are suitable for quadrant folded or gravity flow applications
  • These grades contain a high level of alpha-cellulose that provides high purity but will weaken when wet
  • The inherent strength of standard (untreated) grades does not pose a problem when they are used in routine quadrant folded applications
  • We do not recommend these grades for use in vacuum work or when wet handling is required
  • Qualitative analysis
  • Low ash content 0.06%
  • Untreated
  • Consistent performance
  • Wet-strengthened grades available
  • Custom cut
  • Bulk packaging
 
 
 

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Material Description Packaging
AHM64200425 FILTER, G-642, QUALITATIVE, 4.25CM DIA 100/PK
AHM64200470 FILTER, G-642, QUALITATIVE, 4.7CM DIA 100/PK
AHM64200550 FILTER, G-642, QUALITATIVE, 5.5CM DIA 100/PK
AHM64200700 FILTER, G-642, QUALITATIVE, 7CM DIA 100/PK
AHM64200750 FILTER, G-642, QUALITATIVE, 7.5CM DIA 100/PK
AHM64200900 FILTER, G-642, QUALITATIVE, 9CM DIA, 100/PK 100/PK
AHM64201100 FILTER, G-642, QUALITATIVE, 11CM DIA, 100/PK 100/PK
AHM64201250 FILTER, G-642, QUALITATIVE, 12.5CM DIA, 100/ 100/PK
AHM64201500 FILTER, G-642, QUALITATIVE, 15CM DIA 100/PK
AHM64201850 FILTER, G-642, QUALITATIVE, 18.5CM DIA 100/PK
AHM64202050 FILTER, G-642, QUALITATIVE, 20.5CM DIA 100/PK
AHM64202400 FILTER, G-642, QUALITATIVE, 24CM DIA 100/PK
AHM64202500 FILTER, G-642, QUALITATIVE, 25CM DIA 100/PK
AHM64202700 FILTER, G-642, QUALITATIVE, 27CM DIA 100/PK
AHM64203200 FILTER, G-642, QUALITATIVE, 32CM DIA 100/PK
AHM64203300 FILTER, G-642, QUALITATIVE, 33CM DIA 100/PK
AHM64203850 FILTER, G-642, QUALITATIVE, 38.5CM DIA 100/PK
AHM64204000 FILTER, G-642, QUALITATIVE, 40CM DIA 100/PK
AHM64204500 FILTER, G-642, QUALITATIVE, 45CM DIA 100/PK
AHM64205000 FILTER, G-642, QUALITATIVE, 50CM DIA 100/PK
AHM64210900 FILTER, G-642, QUALITATIVE, 9CM DIA, 5000/PK 5000/PK
AHM64211100 FILTER, G-642, QUALITATIV, 11CM DIA, 5000/PK 5000/PK
AHM64211250 FILTER, G-642, QUALITATIV, 12.5CM DIA, 5000/ 5000/PK
 

LITERATURE

SPECIFICATIONS

SPECIFICATIONS
HPIS Code 220_40_50_0
Latex Free Yes
UNSPSC 41104929

SDS

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