GLASS MICROFIBRE FILTERS · Without binders


DESCRIPTION

    

Recommended filters for controlling both air and water pollution and as a pre-filter for membranes
  • Made of 100% borosilicate glass fibres without binders
  • Glass fibre filters absorb the finest particles down to 1 µm from liquids, in air and gases, aerosols with even 0.3 -0.5 µm are separated.
  • The large surface area (about 2m²/g) provides an outstanding retention capacity.
  • Extremely low content in alkali-earth metals.
  • Chemical stability: Keeps all its properties in contact with acid solutions (except hydrofluoric acid) and/or basic solutions at moderate concentrations.
  • Stability at high temperatures: Keeps its properties up to 500 ºC.
  • High flow speed and high permeability to air.
  • Usable as Pre-filter for membranes to prevent the membranes from silting up.

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TECHNICAL SPECIFICATIONS

 

Grade
Filtration Gurley
(s)
Air Permeability (1) (L/m²s)
Weight (g/m²)
Thickness (mm)
Retention Rate (2) (%)
Max Tª (ºC)
Binder
FPGF 50
19
33
56
0.29
99.993
500
free
FPGF 51
44
11
140
1.00
99.993
500
free
FPGF 52
25
54*
54
0.28
99.995
500
free
FPGF 53
10
18*
120
0.53
99.999
500
free
FPGF 55
67
<10
75
0.40
99.999
500
free


(1) Acording DIN 53887, * Resistance in mbar at 400 cm3/s, A =10 cm2
(2) Tested with Na-Cl particles size <1 µm, maximum at 0.3 to 0.5 µm

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APPLICATIONS

Ref. FPGF 50
  • Immission and emission: routine and specialised atmospheric pollution controls.
  • Water pollution analysis: For total determination of suspended solids.
  • Clearing solvents, buffer solutions and reagents that require the application of spectrophotometric techniques.
  • Algae and bacteria determination in water and sewage analysis.
  • Biochemical issues, like DNA, RNA, proteins, polysaccharides
Ref. FPGF 51
  • Membrane prefilter to prevent its silting.
  • Clearing liquids for later on analysis, using instrumental techniques.
  • Concentrated suspended solids quantification, counting the fine particles.
  • Biochemical issues, like DNA, RNA, proteins, polysaccharides.
Ref. FPGF 52
  • Determination of suspended solids in drinking water, sewage and industrial waste, based on European regulation UNE EN 872 and/or Standard Methods 2540 D.
  • Control and analysis of drinking water or sewage, including processes for clearing aqueous solutions with a low level of fine particles.
  • Biochemical tests: analysis of carbohydrates, cell cultures, counting scintillation in liquids and links analysis, DNA, RNA, proteins, polysaccharides.
  • Protein solutions clearings, prior to freeze-drying.
  • Protein precipitates collection, especially in analysis of terminal groups, followed by counting of the scintillation in the filter.
  • Cell cultures, for example, in studies on incorporation.
  • Collecting fragments of membrane tissue in analysis of receptor links.

Ref. FPGF 53

  • Membrane prefilter: high retention of particles ensures the correct clearing of the sample prior to passing through surface filters (membrane filters).
  • Prefiltration in pharmaceutical industry.
  • Filtration in food industry.
  • Determination of the amount of insoluble contaminants in animal and vegetable fats and oils.
Ref. FPGF 55
  • Sample and solvent filtration’s for HPLC.
  • Biochemical tests: clarification and filtration of proteins, cell cultures, etc.
  • Gravimetric analysis of filters and pigments
  • Elimination of fine suspended carbon material in liquids to be filtered.
  • Electrolytes filtration used in particle size analysis.

Notes for handling
Weight consistency: No relevant changes in weight due to variations in the ambient humidity.
Limited bending resistance. Brushing against other surfaces may cause the loss of fibres (keep the filters in their original box until their use).

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ORDERING INFO

∅ / Grade
FPGF 50
FPGF 51
FPGF 52
FPGF 53
FPGF 55
25 mm
GF50025
GF51025
GF52025
GF53025
GF55025
37 mm
GF50037
GF51037
GF52037
GF53037
GF55037
42.5 mm
GF500425
-
-
-
-
47 mm
GF50047
GF51047
GF52047
GF53047
GF55047
50 mm
GF50050
-
GF52050
-
-
55 mm
GF50055
GF51055
GF52055
GF53055
GF55055
70 mm
GF50070
GF51070
GF52070
GF53070
GF55070
90 mm
GF50090
GF51090
GF52090
GF53090
GF55090
100 mm
GF50100
-
-
-
-
110 mm
GF50110
GF51110
GF52110
GF53110
GF55110
125 mm
GF50125
GF51125
GF52125
GF53125
GF55125
142 mm
-
GF51142
-
GF53142
-
150 mm
GF50150
GF51150
GF52150
GF53150
GF55150
203 X 254 mm*
GF50203254
-
GF52203254
-
-

 

Presentation: 100 units / box
Other sizes available on request

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