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Thumbnail Filmstrip of Quantitative Ashless Filter Paper, Fast, 20-25 um, 180mm, 100/Pk Images
Quantitative Ashless Filter Paper - CF15005
Gravimetric procedures in regulated laboratories require documented ash content that can be reported alongside analytical results for compliance verification. Classical analytical methods requiring filter ignition with collected precipitate demand documented ash values verifiable through every production lot. From fiber selection through final inspection, the manufacturing process ensures every sheet meets the performance specifications of its grade.
Key Filter Paper Characteristics
- Manufactured under controlled acid washing conditions, each sheet delivers consistent ash levels across production lots for method reproducibility.
- Controlled fiber density balances rapid filtration with complete precipitate capture for efficient quantitative determinations.
- Particle retention rating of 20-25um defines the separation threshold for the application, determining which solids are captured and which pass through.
- Acid washing process removes metallic contaminants that could interfere with trace element determinations after ignition.
- Designed for gravimetric determinations where the filter paper is ashed or ignited as part of the analytical measurement step.
Scaling your method from development to routine production requires paper consistency at every lot, and the specifications above provide that assurance. Documented ash specifications on every lot give you the traceability your regulated analytical methods and quality audits require. Elevate the quality of your analytical data today by standardizing on a filtration product built to meet the exact specifications of your applications.
- Capacity
- 0.3mL
- Diameter
- 180mm
- Flow Speed
- Fast
- Folded/ Fluted/ Pleated
- No
- Hardened (Yes/ No)
- No
- Material
- Cellulose
- Nominal Ash Content (%)
- ≤0.011%
- Nominal Basis Weight (g/ m²)
- 80±5g/m²
- Pack Count
- 100
- Particle Retention
- 20-25um
- Pore Size (µm)
- 20.0-25.0
- Qualitative/ Quantitative
- Quantitative Ashless
- Sterility
- Nonsterile
- Weight
- 0.56
- Wet Strengthened (Yes/ No)
- No
- Wettability
- Hydrophilic
- Chloride Gravimetry - Retains silver chloride precipitate for mass-based chloride determination in water quality and process control.
- Calcium Oxalate Analysis - Captures calcium precipitate for ignition to calcium oxide, supporting clinical and water hardness testing.
- Phosphate Gravimetry - Collects magnesium ammonium phosphate precipitate for ignition to pyrophosphate in soil and fertilizer analysis.
- Sulfate Gravimetry - Retains barium sulfate precipitate for ignition-based sulfate quantification in water and industrial samples.
- Total Ash Testing - Provides the ultra-low blank needed for accurate ash determination in food, pharmaceutical, and material samples.
- Aluminum Analysis - Collects aluminum hydroxide precipitate for ignition and weighing in metallurgical and environmental methods.