150 mm Blue Dot Quantitative Folded Filter Papers / Grade 391
These 150 mm diameter very slow filtering, blue dot folded filter papers are used for quantitative and gravimetric analyses as well as for pressure or vacuum filtration. They are made out of 100 % cotton linters with an α-cellulose content of > 98% and are acid-washed to make the papers ashless and achieve high purity.
- Price (USD):
- $87.70
- Item No.:
- FT-4-104-150
- Availability:
- pcs
- Pieces
- 100
*Custom/bulk order quotes are provided within 24 hours of request.
Choose your Quantitative Filter Paper
- Made of 100 % cotton linters
- Ash-free (ash content ≤ 0.01 % according to DIN 54370)
- Wet-strengthened
- Color-coded box for easy selection
- Very slow filtering
- Fine-pore
- 100 folded filters per pack
Applications
-
ApplicationClarification
-
Application Area
-
Analytical sample preparation
- Particle analysis
-
Analytical sample preparation
Dimensions
-
DimensionsN/A
-
Filter Diameter⌀ 150 mm
Features
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Color-coded DotBlue dot: Very slow filtering, fine-pore, very dense, ash-free, wet-strengthened
General Specifications
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Filter FormatFolded
-
Filter Paper/Membrane ColorWhite
-
Filtration Time180 s
-
Grade391
-
SpecificationsFine-pore, dense, very slow filtering
-
Thickness0.15 mm
Materials of Construction
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Filter Material100 % Cotton Linters (> 98 % alpha-cellulose; ash-free)
-
Membrane MaterialN/A
Physicochemical Information
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Pore SizeN/A
-
PrecipitationsVery fine crystalline
-
Retention Rate2–3 µm
Product Information
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Filter TypeQuantitative Filter Papers
-
Pack Size100
-
PackagingNon-sterile, bulk packed
Weight
-
Basis Weight84 g/m²
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