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ConsumablesBorosilicate Glass Fiber Binder Free Filter and with Binder, CA-GFF
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- Made of borosilicate glass fiber without binders or with binder.
- Stability at high temperatures: It keeps its properties up to 500 ºC and 180 ºC for Grade GF10.
- Usable as Pre-filter for membranes to prevent the membranes from silting up.
- Large surface area provides an outstanding retention capacity.
- High flow speed and high permeability to air.
- Reduce filtration costs and premature clogging when filtering difficult-to-filter or highly contaminated solutions.
- Excellent wet strength for easy handling and filter integrity.
Two types of glass fiber filters are available :
- Binder-free glass fiber: Grade GF A, Grade GF B, Grade GF C, Grade GF D, Grade GF F, Grade GF H
- Binder glass fiber: Grade GF 6, Grade GF 8, Grade GF 9, Grade GF 10
Grade GF A
- Highly efficient for general laboratory filtration
- Clarification of buffer and reagent solutions
- Corresponds to many international standards for air and water pollution monitoring
Grade GF B
- Thicker than GF A with higher wet strength and significantly increased loading capacity , Suitable for filtration of large volumes
- Pre-filter for membranes
- Filtration of suspended solids in water/waste water analysis
Grade GF C
- The standard filter in many parts of the world for the collection of suspended solids in potable water and natural and industrial wastes
- Widely used for cell harvesting, liquid scintillation counting and binding assays where more loading capacity is required
Grade GF D
- Universal membrane pre-filter material
- Filtration in food industry
Grade GF F
- GF F is the material upon which the EPA Method TCLP 1311 for Toxicity
- Use for filtering extremely fine precipitates such as protein, nucleic acids, or serum precipitates
Grade GF H
- Suitable for suspended solid analysis
- Cell harvesting
- Air pollution control
Grade GF 6
- Suitable for very fine particles
- Removing protein from difficult-to-filter beers
- Determination of filterable substances and the residue on ignition (dry weight)
- Analysis of aggressive media
Grade GF 8 and Grade GF 9
- Used in the filtration of coarse particles
- Determination of PCB, DDE, DDT, furans and dioxins in the air
- Environmental analysis
- Membrane pre-filter
Grade GF 10
- Used in the filtration of coarse particles
- Weighing aid for infrared weighing
- A roll filter in automatic air filtration units
Specifications
| Grade |
Weight (g/m2) |
Thickness (mm) |
Nominal Rating (μm) |
Maximum Temperature (ºC) |
Binder |
| GF A |
56 |
0.29 |
1.6 |
500 |
Free |
| GF B |
140 |
1.00 |
1.0 |
500 |
Free |
| GF C |
54 |
0.28 |
1.2 |
500 |
Free |
| GF D |
120 |
0.53 |
2.7 |
500 |
Free |
| GF F |
75 |
0.40 |
0.7 |
500 |
Free |
| GF H |
65 |
0.30 |
1.5 |
500 |
Free |
| GF 6 |
80 |
0.35 |
— |
500 |
Inorganic |
| GF 8 |
75 |
0.35 |
— |
500 |
Inorganic |
| GF 9 |
70 |
0.35 |
— |
500 |
Inorganic |
| GF 10 |
70 |
0.35 |
— |
180 |
Organic |
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