Featuring a quantitative ashless cellulose depth medium made from refined pulp and pure cotton linters, this 125mm filter paper disc delivers a 14 to 17 micron nominal retention range at a medium filtration speed. Constructed from virtually 100% alpha-cellulose, it maintains an ash content below 0.007%, making it well suited to gravimetric analysis and the preparation of samples for instrumental techniques. The hydrophilic sheet measures 180 micrometers in nominal thickness with an 85 g/m2 basis weight, and ships 100 discs per pack.
Key Cellulose Media Characteristics
- Quantitative ashless grade with an ash content below 0.007% for accurate, residue-free gravimetric work.
- 14 to 17 micron nominal retention range at a medium filtration speed, balancing flow with particle capture.
- Naturally hydrophilic cellulose made from refined pulp and pure cotton linters at virtually 100% alpha-cellulose content.
- 180 micrometer nominal thickness and 85 g/m2 basis weight provide consistent loading capacity.
- Compatible with Buchner funnels and filtration under pressure or vacuum.
Key Construction Characteristics
- Material: quantitative ashless cellulose.
- Format: 125mm diameter circle.
- Sterility: nonsterile.
- Pack: 100 discs per pack.
This medium-speed quantitative paper provides reliable, reproducible retention across routine analytical filtrations while preserving sample integrity. Its low ash content supports accurate gravimetric measurement where combustion is required, and its hydrophilic structure maintains steady flow during high-volume sample preparation.
- Color
- White
- Diameter
- 125mm
- Flow Speed
- Medium
- Grade
- DME43
- Material
- Cellulose (Quantitative Ashless)
- Mesh Format
- Circle
- Nominal Ash Content (%)
- <0.007
- Nominal Basis Weight (g/ m²)
- 85
- Nominal Thickness (µm)
- 180
- Pack Count
- 100
- Particle Retention
- 14-17 µm
- Pore Size (µm)
- 14-17
- Qualitative/ Quantitative
- Quantitative
- Sterility
- Nonsterile
- Wettability
- Hydrophilic
- Whatman Equivalent
- Grade 43
- Gravimetric Analysis The ashless cellulose construction with under 0.007% ash content supports accurate weighing of retained residues after ignition.
- Foodstuffs Analysis The 14 to 17 micron retention range and medium flow suit routine clarification and sample preparation in food testing labs.
- Soil Analysis Medium-speed quantitative filtration clarifies soil extracts for downstream analytical measurement.
- Air Pollution Monitoring Captures particulate matter for subsequent analysis by X-ray fluorescence and related instrumental techniques.
- Instrumental Sample Prep Provides clean, low-residue filtrate suitable for preparing samples ahead of instrumental analysis.
- Vacuum and Pressure Filtration Compatible with Buchner funnels and filtration under pressure for higher-throughput sample handling.