Whatman Series Glass Microfiber Filter Paper (Sodium-ion Battery Separator)

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Product: Whatman Glass Microfiber Filter Papers (GF Series)
Application: Laboratory Filtration, Electrochemical Separators (Li-ion/Na-ion), Water/Air Analysis, Cell Culture
Product Overview: These binder-free glass microfiber filters are renowned for their high loading capacity, fast flow rates, and excellent chemical resistance. They are widely used in environmental monitoring, biochemical analysis, and as high-performance separators in battery research.

Key Specifications by Grade:

1. Grade GF/A:
– Description: Fast Filtration, High Loading
– Particle Retention: 1.6 um
– Filtration Speed (Herzberg): ~62 s
– Air Flow Rate: 4.3 s/100ml/in^2
– Thickness: 260 um
– Basis Weight: 53 g/m^2
– Packaging: 100 discs/box (Available diameters: 13 mm to 240 mm, plus large sheets)

2. Grade GF/B:
– Description: Medium to Fast, Very High Loading (High Wet Strength)
– Particle Retention: 1.0 um
– Filtration Speed (Herzberg): ~195 s
– Air Flow Rate: 12 s/100ml/in^2
– Thickness: 675 um
– Basis Weight: 143 g/m^2
– Packaging: 100 discs/box (Available diameters: 21 mm to 150 mm)

3. Grade GF/C:
– Description: Medium to Fast, High Loading (Standard for Water Analysis)
– Particle Retention: 1.2 um
– Filtration Speed (Herzberg): ~100 s
– Air Flow Rate: 6.7 s/100ml/in^2
– Thickness: 260 um
– Basis Weight: 53 g/m^2
– Packaging: 100 discs/box (Available diameters: 21 mm to 125 mm, plus large sheets)

4. Grade GF/D:
– Description: Fast, Super High Loading (Ideal as Pre-filter or Battery Separator)
– Particle Retention: 2.7 um
– Filtration Speed (Herzberg): ~41 s
– Air Flow Rate: 2.2 s/100ml/in^2
– Thickness: 675 um
– Basis Weight: 121 g/m^2
– Packaging: 100 discs/box (Available diameters: 7 mm to 150 mm, plus large sheets)

5. Grade GF/F:
– Description: Medium to Fast, Very High Loading (Finest Particle Retention 0.7 um)
– Particle Retention: 0.7 um
– Filtration Speed (Herzberg): ~325 s
– Air Flow Rate: 19 s/100ml/in^2
– Thickness: 420 um
– Basis Weight: 75 g/m^2
– Packaging: 100 discs/box (Available diameters: 21 mm to 142 mm)

Common Features:
– Material: 100% Borosilicate Glass Microfiber
– Binder: Binder-free
– Particle Retention Efficiency: 98%
– Chemical Resistance: Excellent resistance to most solvents and reagents (except HF).

option

GF/A 1820-021 (Dia. 21 mm)，100 discs/box, GF/A 1820-047 (Φ 47 mm)，100 discs/box, GF/A 1820-090 (Φ 90 mm)，100 discs/box, GF/A 1820-150 (Φ 150 mm)，100 discs/box, GF/C 1822-025 (Φ 25 mm)，100 discs/box, GF/D 1823-021 (Φ 21 mm)，100 discs/box, GF/D 1823-047 (Φ 47 mm)，100 discs/box, GF/D 1823-090 (Φ 90 mm)，25 discs/box, GF/D 1823-125 (Φ 125 mm)，25 discs/box, GF/D 1823-257 (Φ 257 mm)，25 discs/box, GF/D 1823-915 (Φ 16 mm)，100 discs/box, GF/F 1825-021 (Φ 21 mm)，100 discs/box, GF/F 1825-047 (Φ 47 mm)，100 discs/box