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Stability at high temperatures: It keeps its properties up to 500 ºC and 180 ºC for Grade GF10.
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Usable as Pre-filter for membranes to prevent the membranes from silting up.
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Large surface area provides an outstanding retention capacity.
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High flow speed and high permeability to air.
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Reduce filtration costs and premature clogging when filtering difficult-to-filter or highly contaminated solutions.
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Excellent wet strength for easy handling and filter integrity.
Two types of glass fiber filters are available :
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Binder free glass fiber
: Grade GF A, Grade GF B, Grade GF C, Grade GF D, Grade GF F, Grade GF H
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Binder glass fiber
: Grade GF 6, Grade GF 8•Grade GF 9•Grade GF 10
Grade GF A
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Highly efficient for general laboratory filtration
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Clarification of buffer and reagent solutions
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Corresponds to many international standards for air and water pollution monitoring
Grade GF B
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Thicker than GF A with higher wet strength and significantly increased loading capacity , Suitable for filtration of large volumes
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Pre-filter for membranes
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Filtration of suspended solids in water/waste water analysis
Grade GF C
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The standard filter in many parts of the world for the collection of suspended solids in potable water and natural and industrial wastes
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Widely used for cell harvesting, liquid scintillation counting and binding assays where more loading capacity is required
Grade GF D
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Universal membrane pre-filter material
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Filtration in food industry
Grade GF F
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GF F is the material upon which the EPA Method TCLP 1311 for Toxicity
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Use for filtering extremely fine precipitates such as protein, nucleic acids, or serum precipitates