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Thumbnail Filmstrip of Quantitative Ashless Filter Paper, Grade 42, 2.0um Retention, 240mm, Very Slow, 100/Pk Images
Featuring high-purity cellulose media engineered for the finest particle retention, this Grade 42 ashless quantitative filter paper delivers a nominal 2.0 um retention rating across a 240 mm circle with a 160 um nominal thickness. The very slow flow characteristic allows the depth structure to capture extremely fine precipitates, making it well suited to critical gravimetric work where even minimal particle loss compromises results.
Key Filter Paper Characteristics
- Ashless quantitative grade cellulose construction provides high purity for analytical work that may involve ashing or weighing after filtration.
- Fine 2.0 um nominal retention captures very small particulates and fine precipitates for accurate quantitative analysis.
- Very slow flow rate supports the most demanding filtrations where retention takes priority over speed.
- Hydrophilic media wets readily with aqueous samples for consistent, reliable filtration.
- 160 um nominal thickness offers a robust depth structure for handling fine precipitate loads.
Key Construction Characteristics
- Material: high-purity cellulose, ashless quantitative grade.
- Format: 240 mm diameter circles.
- Sterility: nonsterile.
- Pack: 100 pieces per pack.
This filter paper delivers dependable retention of fine particulates so analytical results remain accurate and reproducible. Its ashless, high-purity cellulose construction protects sample integrity through gravimetric and instrumental analysis workflows, making it a reliable choice for laboratories performing critical quantitative filtration.
- Diameter
- 240mm
- Flow Speed
- Very Slow
- Grade
- 42 (DXS42)
- Material
- Cellulose
- Nominal Thickness (µm)
- 160
- Pack Count
- 100
- Particle Retention
- 2.0 µm
- Pore Size (µm)
- 2
- Qualitative/ Quantitative
- Quantitative
- Sterility
- Nonsterile
- Wettability
- Hydrophilic
- Whatman Equivalent
- Grade 42
- Gravimetric Analysis The fine 2.0 um retention and ashless purity make this paper ideal for collecting and weighing fine precipitates in critical gravimetric determinations.
- Fine Precipitate Filtration Captures very fine precipitates, including those prone to colloidal dispersion, that pass through coarser media.
- Instrumental Analysis Sample Prep Removes fine particulates that could interfere with sensitive downstream instrumentation.
- Ashing Procedures High-purity ashless cellulose supports applications requiring combustion of the filter with minimal residual ash.
- Critical Quantitative Filtration Suited to demanding analytical filtrations where maximum retention and very slow flow are required.