GE’s thinnest Whatman brand hardened filter paper, highly glazed Grade 50 supports vacuum filtration in Büchner funnels or Hirsch funnels and enables strong retention of very fine crystalline precipitates.
Thinner filter design (average thickness 115 µm) than most Büchner filter papers
Acid-treated for high wet-strength and chemical resistance
Nominal particle retention of 2.7 µm
Slow flow rates (Herzberg filtration speed 2685 s)
High purity and low ash content (0.015% ash maximum)
Compatible with Hirsch or Büchner funnels
GE offers three grades of hardened low ash filters. All three are designed for use in Hirsch and Büchner funnel applications and can be customized for an exact fit.
Wet-strengthened filters for vacuum filtration
For many vacuum filtration applications, a thin filter paper with a slow flow rate and excellent wet strength can maintain sample quality and purity. Because Grade 50 thin filter papers are hardened to minimize fiber shredding, they are a good choice for use as carriers in integrated circuits.
Grade 50 thin filter paper from GE Healthcare’s Life Sciences business is very strong when wet. It will withstand wet handling and precipitate removal by scraping.
Grade 50 is also available in Smear Tab format for wipe testing (e.g., testing of surfaces for radionuclide contamination).
Looking for a filter paper, membrane filter, or syringe filter? Let GE help you find the optimal filter for your needs to ensure reliable analysis.
Specification
Grade :Grade 50
Format :Circles
Type :Hardened low ash
Diameter :125 mm
Typical Particle Retention in Liquid1 :2.7 µm
Nominal Thickness :115 µm
Typical water flow rate2 :10 ml/min
Nominal Basis Weight :96 g/m²
Nominal Air Flow Rate :144 s/100 mL/in²
Nominal Ash Content3 :0.015%
Material :High-quality cotton linters
Alpha Cellulose Content Min. :≥98%
Application :For qualitative or quantitative filtrations requiring vacuum assistance on Büchner or 3-piece filter funnels.
Dimensions :Ø 125 mm
Whatman Quantitative Filter Paper, Hardened Low Ash, Grade 50 Whatman Filter Papers Range of products are mostly available in ready stock and it can delivered immediately throughout india
Apart from supplying Whatman Filter Papers products in India through dealers network, catering to a variety of customers ranging from Electrical Contractors, Engineering Industries, Turnkey Construction Companies, Railways, Defence Installations, Research Laboratories, Educational Institutes and various Research and Development laboratories of leading national and multinational companies.
We DFT TECH, are Whatman Filter Papers Authorized Distributors, Importers, Stockists, Dealers and Suppliers of Whatman Quantitative Filter Paper, Hardened Low Ash, Grade 50 Products in Chennai, Wayanad, Gujarat, Odisha, Rajasthan, West Bengal, Tripura, Palakkad, Kanyakumari, Theni, Krishnagiri, Namakkal, Sivagangai, Perambalur, Dharmapuri, Erode, Pudukottai and etc..