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Cytiva Whatman™ Grade 934-AH RTU Glass Microfiber Filters, Ready to Use

Widely used for total suspended solids analysis.

Pricing & Availability

Cytiva Whatman™ Nytran™ SuperCharge Membranes

Cast uniformly on both sides of a support matrix, providing excellent symmetry and allowing membranes to lie flat without curling

Pricing & Availability
Specifications

Pore Size	0.45 μm
Binding Capacity	>600μg/cm²
Material	Nylon
For Use With (Application)	Suitable for isotopic and nonisotopic detection

Cytiva Whatman™ Acid-Treated Low-Metal TCLP Filters

Binder free filters

Pricing & Availability
Specifications

Thickness (Metric)	420 μm
Particle Retention	0.7 μm
Type	TCLP Limits Test Filter
Shape	Circle
Format	Disc
Description	GE’s Whatman TCLP test filters are acid-treated with low metal content. They support TCLP testing by providing accurate information about TCLP limits to ensure the best possible disposal plan can be put into action.
Material	Borosilicate Glass
Waterflow Rate	60 mL/min

Cytiva Whatman™ Grade 595 Qualitative Filter Circles

Separates particles from food extracts and solids from digested environmental samples. Whatman™ Grade 595 Qualitative Filter Circles are designed for medium-fast, with medium to fine particulate retention.

Pricing & Availability
Specifications

Particle Retention	7 μm
Format	Disc
Grade	Grade 595
Material	Cellulose
Filtration Speed	Approx. 80 s
For Use With (Application)	A standard grade filter used for many routine analytical applications in different industries (e.g., particle separation from food extracts or filtration of solids from digested environmental samples for iCP/AAs analysis).

Cytiva Whatman™ Grade 597 Qualitative Filter Circles

Filters carbon dioxide and turbidity during beverage analysis. Whatman™ Grade 597 Qualitative Filter Circles may also be used to determine fat content in food analysis.

Pricing & Availability
Specifications

Thickness (Metric)	180 μm
Pore Size	4 to 7 μm
Flow Rate	Medium Fast
Particle Retention	7 μm
Format	Disc
Grade	Grade 597
Material	Cellulose
Filtration Speed	Approx. 140 s
For Use With (Application)	A standard grade filter used for a wide variety of analytical routine applications in different industries like food testing (e.g., determination of fat content) or removal of carbon dioxide and turbidity from beverages (e.g., beer analysis).

Cytiva Whatman™ 934-AH RTU Glass Microfiber Filters

Fast and convenient

Pricing & Availability
Specifications

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

Cytiva Whatman™ Kjeldahl Analysis Weighing Boats, Grade 609

Designed to collect, transfer, and drop both sample and weighing boat into the acid solution during a Kjeldahl analysis without influencing analytical results. Whatman™ Kjeldahl Weighing Boats are excellent for both weighing and quantitative sample transfer.

Pricing & Availability

Cytiva Whatman™ Qualitative Filter Paper: Grade 4 Circles

Filters and retains coarse particles for monitoring air pollution. Whatman™ Qualitative Filter Paper: Grade 4 Circles are used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical.

Pricing & Availability
Specifications

Thickness (Metric)	210 μm
Pore Size	20 to 25 μm
Flow Rate	Fast
Particle Retention	25 μm
Format	Disc
Grade	Grade 4
Material	Cellulose
Porosity	Medium
Filtration Speed	37 sec.

Cytiva Grade 1V Qualitative Filter Papers, Fluted

Widely used for many general filtration applications. Whatman™ Grade 1V Qualitative Filter Papers, Fluted are the pleated, pre-folded version of Whatman filter paper 1, which is well suited for qualitative analysis in routine applications.

Pricing & Availability
Specifications

Thickness (Metric)	180 μm
Flow Rate	57mL/min.
Particle Retention	11 μm
Type	Qualitative Filter Paper
Format	Folded (Pre-pleated)
Quantity	100 Pk.
Grade	Grade 1V
Material	Cellulose
Filtration Speed	150 s (Herzberg)
For Use With (Application)	Used filter paper for routine applications with medium retention and flow rate. Covers a wide range of laboratory applications and is frequently used for clarifying liquids.

Cytiva Whatman™ Grade 44 Quantitative Filter Paper

Reduces overall ash content and the amount of time required for filtration. Whatman™ Grade 44 Quantitative Filter Paper provides faster gravimetric analysis with filter thinner material.

Pricing & Availability
Specifications

Thickness (Metric)	176 μm
Pore Size	3 μm
Flow Rate	Medium
Particle Retention	3 μm
Type	Quantitative Filter Paper
Format	Disc
Airflow Rate	56 s/100 mL/in²
Quantity	100 Pk.
Grade	Grade 44
Material	Cotton Linters
Filter Type	Ashless
Porosity	Fine
Filtration Speed	995 sec.

Cytiva Whatman™ Quantitative Filter Paper: Grade 540 Circles

Use as a gravimetric filter during analysis of metals in acidic or alkaline solutions and in the collection of hydroxides. Whatman™ Quantitative Filter Paper: Grade 540 Circles acid-treated surface prevents tearing during filtration and allows the user to scrape precipitates from the paper.

Pricing & Availability
Specifications

Thickness (Metric)	160 μm
Particle Retention	8 μm
Type	Quantitative Filter Paper
Format	Disc
Airflow Rate	13 s/100 mL/in²
Quantity	100/Pk.
Grade	Grade 540
Material	Cotton Linters
Filter Type	Hardened Ashless
Porosity	Medium
Filtration Speed	ASTM, 55 seconds; Herzberg, 200 seconds
For Use With (Application)	Frequently used in the gravimetric analysis of metals in acid/alkali solutions and in collecting hydroxides after precipitation by strong alkalis.

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.

Pricing & Availability
Specifications

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

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

Filters fine particles with high wet-strength and high loading capacity. Whatman™ Binder-Free Microfiber Filters, Grade GF/B are particularly useful for liquid clarification and liquid scintillation counting.

Pricing & Availability
Specifications

Thickness (Metric)	675 μm
Flow Rate	5.5 sec./100mL
Particle Retention	1.0 μm
Type	Filter
Temperature (English) Max.	932°F
Basis Weight	143 g/m²
Format	Disc
Description	GE’s Whatman brand Grade GF/B is a thick filter with fine particle filter and good loading capacity. GF/B filters are particularly useful for liquid clarification and liquid scintillation counting.
Thickness (English)	0.02 in.
Temperature (Metric) Max	500°C
Grade	Grade GF/B
Material	Borosilicate Glass
Waterflow Rate	81 mL/min

Cytiva Whatman™ Vacuum-Type Glass Membrane Holder

Produced from borosilicate glass and available with a choice of support screen. Whatman™ Vacuum-Type Glass Membrane Holder is suitable for aqueous and organic solvent filtration. The funnel seal ensures that the sample does not bypass the membrane and that particulates are retained on the surface of the membrane.

Pricing & Availability
Specifications

Material	Borosilicate Glass

Cytiva Whatman™ Polydisc Disposable Filter Capsules

All polypropylene unit

Pricing & Availability
Specifications

Diameter (Metric)	50 mm
Inlet Style	Stepped Barb (1/4 to 3/8 in.)
Housing Material	Polypropylene (PP)
Material (Membrane)	Polypropylene
Volume (Metric)	Up to 1000 mL
Quantity	10
No. per Pack	10 Pieces
Filtration Area	20.4 cm²