Cellulose filters are used in qualitative analytical techniques to determine and identify materials.
Prepleated qualitative filters are available, which give improved flow rate and increased loading capacity compared to equivalent flat filters.
| Variation Codes | 1006-090 |
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Whatman
Qualitative Filter Papers-Grade 5: 2.5μm
Grade 5: 2.5 μm*
The maximum degree of fine particle filtration in the qualitative range.Capable of retaining the fine precipitates encountered in chemical analysis.
Slow flow rate.
Excellent clarifying filter for cloudy suspensions and for water and soil analysis.
Also available prepleated as Grade 5V.
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Whatman
Quantitative Filter Papers-Grade 40: 8μm
Grade 40: 8 μm*
The classic general purpose ashless filter paper with medium speed and retention.
Typical applications include gravimetric analysis for numerous components in cements,clays, iron, and steel products; as a primary filter for separating solid matter from aqueous extracts in general soil analysis; quantitative determination of sediments in milk, and as a pure analytical grade clean-up filter for solutions prior to AA
spectrometry.Also used as a high-purity filter in the collection of trace elements and radionuclides from the atmosphere.
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Whatman
Qualitative Filter Papers – Grade 1: 11µm
Grade :Grade 1
Grade Type :Standard
Typical Particle Retention in Liquid1 :11 µm
Nominal Thickness :180 µm
Typical water flow rate2 :57 ml/min
Nominal Basis Weight :87 g/m²
Nominal Air Flow Rate :13 s/100 ml/in²
Nominal Ash Content :0.06%
Material :CelluloseFormat :Sheets
Dimensions :580 x 680 mm (22 x 26 in)
Pack size :100 piecesSKU: n/a
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