Description
Ahlstrom® Quantitative Filter Paper, Grade 94, 18.5 cm Diameter, 1.5 micron Pore, Ashless, 100/PK, 0940-1850
Features:
- Acid-washed, ashless quantitative filter paper designed for gravimetric and quantative analysis requiring very fine particle retention
- Acid-wash minimizes inorganic contaminates
- One of Ahlstrom's slowest-flowing quantitative grades
- Commonly used for collection of fine precipitates such as barium sulfate, lead sulfate, calcium oxalate, calcium fluoride, and metal sulfides
- Also suitable for environmental and water testing, trace metals analysis and pharmaceutical and chemical laboratory procedures requiring quantitative recovery of solids
- Ashless is suitable for ignition procedures
- High purity and uniformity from batch to batch
- High wet strength despite fine pore structure
- Equivalent to Cytiva® Whatman® Grade 42
Specifications
| Range | Particle Retention: 1.5 microns |
|---|---|
| Range | Filtration Speed (Hertzberg): 1724 sec/100 mL |
| Range | Typical Water Flow Rate: 4 mL/min |
| Range | Weight Basis: 95 g/sq m |
| Capacity | Loading: medium |
| Material | 100% cotton fibers |
| Application | Routine quantitative gravimetric techniques |
| Other | Ash content: 0.007% |
| Other | Wet burst strength: 63.5 cm H2O |
| Dimensions | 18.5 cm diameter x 0.19 mm thickness |
| Manufacturer | Ahlstrom |
| Model No | 0940-1850 |