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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.

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Specifications

Glass Fiber Filters and Prefilters

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

Sartorius Stedim Biotech™ Grade 292 Qualitative Papers, Discs

Sartorius Stedim Biotech™ Grade 292 Qualitative Papers, Discs are especially suitable for qualitative analyses that require a low ash content.

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Specifications

Filter Paper

Thickness (Metric)	0.18 m
Particle Retention	5 to 8 μm
Basis Weight	87 g/m²
Format	Disc
Quantity	100/Pk.
Grade	292
Material	Cotton Linters (Low-nitrogen and Nitrates; <0.06% Ash)
Filtration Speed	45 sec.

Fisherbrand™ Grade 13 Ashless Medium Filtering Quantitative Filter Paper

Used for fine precipitates such as magnesium ammonium phosphate and calcium oxalate.

Pricing and Availability
Specifications

Filter Paper

Thickness (Metric)	0.16 mm
Pore Size	5 to 8 μm
Particle Retention	5 to 8 μm
Type	Quantitative Filter Paper
Description	Ash Content: 0.007%
Quantity	100/Pk.
Grade	13
Material	Cotton Linters
Filter Type	Ashless
Filtration Speed	50 sec.

Fisherbrand™ Grade 122 Cellulose General Purpose Filter Paper

Very fast filtration velocity. Fisherbrand™ Grade 122 Cellulose General Purpose Filter Paper is used for all general works in laboratories.

Pricing and Availability
Specifications

Filter Paper

Thickness (Metric)	0.17 mm
Pore Size	17 to 30 μm
Particle Retention	17 to 30 μm
Format	Folded Disc
Quantity	100/Pk.
Grade	122
Material	Cellulose
For Use With (Application)	For all general works in laboratories

Fisherbrand™ Grade 51 Ashless Hardened Quantitative Filter Paper

Used for quantitative analysis.

Pricing and Availability
Specifications

Filter Paper

Thickness (Metric)	0.18 mm
Pore Size	12 to 15 μm
Particle Retention	12 to 15 μm
Format	Disc
Description	Ash Content: <0.008%
Quantity	100 Pk.
Grade	51
Material	Cotton Linters
Filtration Speed	10 sec.
For Use With (Application)	Acid solutions analysis and for filtration under high pressure

Fisherbrand™ Grade 113 Cellulose Medium Filtering Qualitative Filter Paper

Filters fine particulates.

Pricing and Availability
Specifications

Filter Paper

Thickness (Metric)	0.16 mm
Pore Size	5 to 8 μm
Description	Ash Content: 0.06%
Grade	113
Material	Cellulose

Fisherbrand™ Grade 111 Cellulose Fast Qualitative Filter Paper

For fast filtering of particulates.

Pricing and Availability
Specifications

Filter Paper

Thickness (Metric)	0.2 mm
Pore Size	12 to 15 μm
Particle Retention	12 to 15 μm
Description	Ash Content: 0.06%
Quantity	100 Pk.
Grade	111
Material	Cellulose
For Use With (Application)	For coarse and voluminous precipitates like Hydroxides and Sulphides

Fisherbrand™ Grade 602 Medium Filtering Special Filter Paper

Suitable for all works in laboratories. Fisherbrand™ 602 Medium Filtering Special Filter Paper is used in filtration of various products, pharmaceutical wrapping (pills, powders, dressing bandages and tablets).

Pricing and Availability
Specifications

Filter Paper

Length (Metric)	520 mm
Grade	602
For Use With (Application)	All works in laboratories - filtration of various products, pharmaceutical wrapping (pills, powders , dressing bandages and tablets)
Width (Metric)	420 mm
Dimensions (L x W)	520 x 420mm

Fisherbrand™ Grade 115 Cellulose Very Slowly Filtering Qualitative Filter Paper

Fisherbrand™ Grade 115 Cellulose Very Slowly Filtering Qualitative Filter Paper are made of cellulose fibers.

Pricing and Availability
Specifications

Filter Paper

Thickness (Metric)	0.14 mm
Pore Size	2 to 3 μm
Quantity	100/Pk.

Fisherbrand™ Grade 53 Ashless Hardened Quantitative Filter Paper

Used for quantitative analysis.

Pricing and Availability
Specifications

Filter Paper

Thickness (Metric)	0.16 mm
Pore Size	5 to 8 μm
Particle Retention	5 to 8 μm
Format	Disc
Description	Ash Content: <0.008%
Quantity	100 Pk.
Grade	53
Material	Cotton Linters
Filtration Speed	50 sec.
For Use With (Application)	For Acid solutions analysis and for filtration under high pressure

Fisherbrand™ Mixed Cellulose Ester Membranes Sterile Filter

Fisherbrand™ Mixed Celluloses Esters Membranes Sterile Filters are composed of cellulose acetate and cellulose nitrate.

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Specifications

Filtration Membrane Discs

Wettability	Yes
Type	Gridded Disc
Diameter (Metric)	47 mm
Quantity	100/Pk.
Material	MCE
Hydrophobicity	Hydrophilic
For Use With (Application)	Microdialysis of DNA and Proteins, clarification of aqueous solutions during microbiological analysis, identification of Nucleic Acids
Sterility	Sterile

Fisherbrand™ Grade 11 Ashless Fast Filtering Quantitative Filter Paper

Used for coarse and voluminous precipitates such as iron, aluminum and chromium hydroxides, Si-determination in steel and pig iron analysis.

Pricing and Availability
Specifications

Filter Paper

Thickness (Metric)	0.18 mm
Pore Size	12 to 15 μm
Particle Retention	12 to 15 μm
Type	Quantitative Filter Paper
Description	Ash Content: 0.007%
Quantity	100/Pk.
Grade	11
Material	Cotton Linters
Filter Type	Ashless
Filtration Speed	10 sec.
For Use With (Application)	Used for coarse and voluminous precipitates such as Iron, Aluminum and Chromium Hydroxide, Si determination in Steel and Pig Iron analysis

Fisherbrand™ Grade 601 Cellulose General Purpose Filter Paper

Used in analytical works in laboratories. Fisherbrand™ Grade 601 Cellulose General Purpose Filter Paper has medium filtration velocity.

Pricing and Availability
Specifications

Filter Paper

Thickness (Metric)	0.16 mm
Pore Size	5 to 13 μm
Particle Retention	5 to 13 μm
Quantity	100/Pk.
Grade	601
Material	Cellulose
For Use With (Application)	Filter Paper used in analytical works in laboratories, medium filtration velocity

Fisherbrand™ Grade 55 Ashless Hardened Quantitative Filter Paper

Suitable for wide range of analytical applications.

Pricing and Availability
Specifications

Filter Paper

Thickness (Metric)	0.14 mm
Pore Size	2 to 3 μm
Particle Retention	2 to 3 μm
Type	Quantitative Filter Paper
Format	Disc
Description	Ash Content: 0.007%
Quantity	100/Pk.
Grade	55
Material	Refined Cellulose, Cotton Linters
Filter Type	Hardened Ashless
Filtration Speed	180 sec.
For Use With (Application)	Used for Acid solutions analysis and for filtration under high pressure

Cytiva Whatman™ Grade 54 Quantitative Filter Paper

Supports collection of coarse and gelatinous precipitates with minimal fiber shredding, even when wet. Whatman™ Grade 54 Quantitative Filter Paper has a hard, smooth surface to sustain vacuum and suction filtration.

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Pricing and Availability
Specifications

Filter Paper

Thickness (Metric)	185 μm
Pore Size	22 μm
Flow Rate	Fast
Particle Retention	22 μm
Type	Quantitative Filter Paper
Airflow Rate	3 s/100 mL/in²
Grade	Grade 54
Material	Cotton Linters
Filter Type	Hardened Low Ash
Porosity	Coarse
Filtration Speed	ASTM, 10 seconds; Herzberg, 39 seconds

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

Sartorius Stedim Biotech™ Grade 292 Qualitative Papers, Discs

Fisherbrand™ Grade 13 Ashless Medium Filtering Quantitative Filter Paper

Fisherbrand™ Grade 122 Cellulose General Purpose Filter Paper

Fisherbrand™ Grade 51 Ashless Hardened Quantitative Filter Paper

Fisherbrand™ Grade 113 Cellulose Medium Filtering Qualitative Filter Paper

Fisherbrand™ Grade 111 Cellulose Fast Qualitative Filter Paper

Fisherbrand™ Grade 602 Medium Filtering Special Filter Paper

Fisherbrand™ Grade 115 Cellulose Very Slowly Filtering Qualitative Filter Paper

Fisherbrand™ Grade 53 Ashless Hardened Quantitative Filter Paper

Fisherbrand™ Mixed Cellulose Ester Membranes Sterile Filter

Fisherbrand™ Grade 11 Ashless Fast Filtering Quantitative Filter Paper

Fisherbrand™ Grade 601 Cellulose General Purpose Filter Paper

Fisherbrand™ Grade 55 Ashless Hardened Quantitative Filter Paper

Cytiva Whatman™ Grade 54 Quantitative Filter Paper

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