Cytiva's Whatman™ 1444-240 Ashless Grade 44 Quantitative Filter Paper, Diameter: 7cm, Pore Size: 3µm (Pack of 100)
- Qualitative filter paper, Grade 44
- Designed for gravimetric analysis and the preparation of samples for instrumental analysis
- Shape: circle; diameter: 70mm; flow rate: slow to medium
- Ashless; 0.007% ash maximum for Grades 40 to 44 and a maximum of 0.01% for the 589 Grades
- Very pure filter is suitable for a wide range of critical analytical filtration procedures
- Pack of 100
- Manufacturer Part No: WHA-1444-070
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Details
This qualitative filter paper, Grade 44, is designed for gravimetric analysis and the preparation of samples for instrumental analysis. It is ashless; 0.007% ash maximum for Grades 40 to 44 and a maximum of 0.01% for the 589 Grades. The very pure filter is suitable for a wide range of critical analytical filtration procedures. Grade 44 is a thin version of Grade 42 retaining very fine particles but with lower ash weight per sample and almost twice the flow rate of Grade 42. Shape: Circle. Diameter: 70mm. Flow Rate: Slow To Medium. Particle Retention: 3µm. Filtration Speed: ~ 995 Herzberg(s). Ash content: 0.007%. Typical Thickness: 180µm. Basis Weight: 80g/m². Whatman™ #: 1444-070.
Documents & Videos
This qualitative filter paper, Grade 44, is designed for gravimetric analysis and the preparation of samples for instrumental analysis. It is ashless; 0.007% ash maximum for Grades 40 to 44 and a maximum of 0.01% for the 589 Grades. The very pure filter is suitable for a wide range of critical analytical filtration procedures. Grade 44 is a thin version of Grade 42 retaining very fine particles but with lower ash weight per sample and almost twice the flow rate of Grade 42. Shape: Circle. Diameter: 70mm. Flow Rate: Slow To Medium. Particle Retention: 3µm. Filtration Speed: ~ 995 Herzberg(s). Ash content: 0.007%. Typical Thickness: 180µm. Basis Weight: 80g/m². Whatman™ #: 1444-070.