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Glass Fiber Filters and Prefilters

Glass filters and pre-filters for contamination analysis, liquid clarification, and collection of suspended solids; available in with or without binders and in a range of grades for fine particle filtration.
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1

Fisherbrand™ Glass Fiber Circles

Faster flow, higher retention than cellulose filters

EDGE
Flow Rate Fast
Temperature (English) Max. 932°F
Temperature (Metric) Max 500°C
Material Glass Fiber
Autoclavable Autoclavable
2

MilliporeSigma™ Glass Fiber Filters Without Binder

Choose from six grades of filters. Glass Fiber Filters without Binders are made of borosilicate microfiber glass. Available in multiple pore sizes and flow rates for a variety of filtration and analysis applications utilizing depth filters. Autoclavable.

EDGE
Pore Size 0.7 μm
Type Filter Membranes
Color White
Filter Type Depth Filter
Surface Type Plain
3

Cytiva Whatman™ 934-AH RTU Glass Microfiber Filters

Fast and convenient

EDGE
Thickness (Metric) 435 μm
Flow Rate 47 sec./100mL
Particle Retention 1.5 μm
Type RTU Filter for Total Suspended Solids Analysis
Temperature (English) Max. 1022°F
Description Our Whatman glass microfiber filter papers in grade 934-AH RTU have been pre-washed, dried (or ignited), cooled, desiccated and weighed, which eliminates the pre-treating steps that are otherwise required by the US EPA Laboratory Standard Method 2540 part
Thickness (English) 0.017 in.
Temperature (Metric) Max 550°C
Quantity 100 pieces
Grade 934-AH RTU
Material Borosilicate Glass
For Use With (Application) Monitoring of rivers, lakes and coastal waters
Waterflow Rate 341 mL/min
4

Cytiva Whatman™ Binder-Free Glass Microfiber Filters, Grade 934-AH Circles

Designed for analysis of non-filterable residue and materials that require a high loading capacity glass microfiber filter. Whatman™ Binder-Free Glass Microfiber Filters, Grade 934-AH Circles are also used in cell harvesting, liquid scintillation, and monitoring pollution.

EDGE
Particle Retention 1.5 μm
Temperature (English) Max. 932°F
Shape Circle
Description Whatman Grade 934-AH borosilicate glass microfiber filters from GE are smooth water quality filters with high retention efficiency. Grade 934-AH filters are often used in total suspended solids analysis.
Filtration Time 47 sec./100mL
Quantity 100 Pack
Grade Grade 934-AH
Material Borosilicate Glass
Thickness (Metric) 435 μm
Flow Rate 3.7 sec./100mL/in.2
Type Filter for Total Suspended Solids Analysis
Basis Weight 64 g/m2
Format Disc
Thickness (English) 0.017 in.
Surface Type Smooth
Waterflow Rate 341 mL/min
5

Cytiva Whatman™ Binder-Free Glass Microfiber Filters, Grade GF/A

Combines high loading capacity with fine particle retention. Whatman™ Binder-Free Glass Microfiber Filters, Grade GF/A are ideal for gravimetric determination of airborne particulates, stack sampling and absorption methods of air pollution monitoring.

EDGE
Particle Retention 1.6 μm
Temperature (English) Max. 932°F
Shape Circle
Description GE’s Whatman Grade GF/A glass microfiber filters feature fine retention. GF/A filters are suitable for water quality parameter measurement and air filtration applications.
Temperature (Metric) Max 500°C
Quantity 100 Pieces
Grade Grade GF/A
Material Borosilicate Glass
For Use With (Application) Used for high-efficiency general purpose laboratory filtration, including water pollution monitoring of effluents, for filtration of water, foodstuff analyses, protein filtration, and radioimmunoassay of weak β emitters.
Thickness (Metric) 260 μm
Flow Rate 13 sec./100mL
Type Fine Retention Filter
Format Disc
Thickness (English) 0.01 in.
Waterflow Rate 143 mL/min
6

Cytiva Whatman™ Binder-Free Glass Microfiber Filters GF/F Circles

Served as the basis filter for EPA standard for the toxicity characteristic leaching procedure. Whatman™ Binder-Free Glass Microfiber Filters GF/F Circles offers an extremely high loading capacity and flow rate.

EDGE
Particle Retention 0.7 μm
Temperature (English) Max. 932°F
Shape Circle
Description Whatman Grade GF/F filter from Cytiva's business is manufactured from pure borosilicate glass. GF/F offers very fine particle retention and good loading capacity and flow rate.
Temperature (Metric) Max 500°C
Grade Grade GF/F
Material Borosilicate Glass
For Use With (Application) Recommended for DNA binding and purification.Very effective in filtering finely precipitated proteins.Can be used in conjunction with GF/D as a prefilter for the successful clarification of extremely ‘difficult’ biochemical solutions and fluids and nucl
Thickness (Metric) 420 μm
Flow Rate 19 sec./100mL/in.2
Type Filter for TCLP Test Use
Format Disc
Thickness (English) 0.016 in.
Autoclavable Autoclavable
Waterflow Rate 41 mL/min
7

Fisherbrand™ Filters for TCLP

Binder-free, borosilicate glass fiber filters have 0.7 micron pore size

Pore Size 0.7 μm
Material Borosilicate Glass Fiber
8

MilliporeSigma™ Woven Mesh Spacer, Dacron, 124 mm

Woven mesh spacers are placed between filters in serial filtration to prevent the downstream screen filter from 'blinding' the upstream filter pores. They increase flow rate & throughput.

9

MilliporeSigma™ Filter Support Pads

Reinforce filters or use as spacers between filters. Filter Support Pads are available in absorbant cellulose pads to support filters in monitors or woven Dacron™ mesh spacers designed for use between filters. Available in diameters from 13mm to 124mm.

Particle Retention 0.2 to 0.6 μm
Temperature (English) Max. 220°F
Temperature (Metric) Max 105°C
Color White
Quantity 100Pack.
Grade AP10
Material Cellulose Fiber
Hydrophobicity Hydrophilic
For Use With (Application) Used as filter supports in Millipore™ monitors for contamination analysis for drying filters
Thickness (Metric) 0.8 to 1 mm
Flow Rate 5.8 mL/minx cm2
Wettability Hydrophilic
Thickness (English) 0.031 to 0.039 in.
Filter Type Depth Filter
Surface Type Plain
11

Sartorius Glass Fiber (GF) Pre-filters, No Binder

Use in gravimetric analyses and as a depth filter for sterile filtration. Sartorius Glass Fiber (GF) Pre-filters, No Binder are made of borosilicate glass microfibers and combine fast flow rates with high load capacity. Ideal for relatively clean solutions, as it retains very fine particles.

12

Sartorius Glass Fiber (GF) Pre-filters

Use as a depth filter for larger totally filterable volumes. Sartorius Glass Fiber (GF) Pre-filters are made of borosilicate glass microfibers and are ideal for use as a pre-filter in clarification and sterile filtration. Available in a range of filter disc diameters.

Particle Retention 2.6 μm
Temperature (English) Max. 428°F
Temperature (Metric) Max 220°C
Color White
Grade 13400
Material Borosilicate Glass Microfiber
Hydrophobicity Hydrophilic
For Use With (Application) Used as a depth prefilter high particle loading capacity
Sterility Non-sterile
Thickness (Metric) 550 μm
Flow Rate 295 to 381mL/min.
Format Disc
For Use With (Equipment) Filtration Systems
Autoclavable Autoclavable
13

Sartorius Extra Thick Glass Fiber (GF) Pre-filters

Glass fiber prefilters, depth pre filters, for larger totally filterable volumes in clarification and sterile filtration.

Type Glass Microfiber Filter
Temperature (English) Max. 932°F
Format Disc
For Use With (Equipment) Filtration Systems
Temperature (Metric) Max 500°C
Color White
Material Borosilicate Glass Microfiber
Filter Type Net Filter
Hydrophobicity Hydrophilic
For Use With (Application) Prefiltration of clean solutions such as tissue culture media
Autoclavable Autoclavable
Sterility Non-sterile
14

MilliporeSigma™ Glass Fiber Filters with Binder, 1 μm

For prefiltration and contamination analysis

Pore Size 1 μm
Particle Retention 0.2 to 0.6 μm
Temperature (English) Max. 1022°F
Airflow Rate 10.6 L/min/ cm2
Air Resistance 210 mm of H2O
Temperature (Metric) Max 550°C
Color White
Grade AP15
Material Borosilicate Glass Microfiber
Hydrophobicity Hydrophilic
For Use With (Application) Prefiltration and contamination analysis
Sterility Sterile
Thickness (Metric) 790 μm
Includes Binder resin
Flow Rate 1.6 mL/min/ cm2
Wettability Hydrophilic
Type Filter Membranes
Thickness (English) 0.031 in.
Protein Binding Capacity 100 μg/ cm2
Filter Type Depth Filter
Surface Type Plain
Autoclavable Autoclavable
15

MilliporeSigma™ Glass Fiber Filters Without Binder, 2.7 μm

Hydrophilic Glass Fiber without Binder Resin filter

Pore Size 2.7 μm
Particle Retention 2.7 μm
Temperature (English) Max. 932°F
Airflow Rate 139 L/min/ cm2
Air Resistance 16 mm of H2O
Temperature (Metric) Max 500°C
Color White
Grade APFD
Material Borosilicate Glass Microfiber
Hydrophobicity Hydrophilic
For Use With (Application) Use for clarifying suspensions containing particulates
Sterility Sterile
Thickness (Metric) 470 μm
Flow Rate 2.7 mL/min/ cm2
Wettability Hydrophilic
Type Filter Membranes
Thickness (English) 0.018 in.
Filter Type Depth Filter
Surface Type Plain
Autoclavable Autoclavable