Filters and Filtration
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Cytiva Whatman™ Binder-Free Glass Microfiber Filters, Grade GF/C
Combines fine particle retention with good flow rate. Whatman™ Binder-Free Glass Microfiber Filters, Grade GF/C are ideal for the collection of suspended solids in potable water, natural and industrial wastes.
| Thickness (Metric) | 260 μm |
|---|---|
| Flow Rate | 10.5 sec./100 mL |
| Particle Retention | 1.2 μm |
| Temperature (English) Max. | 932°F |
| Basis Weight | 53 g/m2 |
| Shape | Circle |
| Format | Disc |
| Description | GE’s Whatman filter paper Grade GF/C glass filters offer a good flow rate and loading capacity that support total suspended solids analysis. |
| Thickness (English) | 0.01 in. |
| Temperature (Metric) Max | 500°C |
| Grade | Grade GF/C |
| Material | Borosilicate Glass |
| Waterflow Rate | 105 mL/min |
Cytiva Whatman™ Qualitative Filter Paper: Grade 1 Circles
Covers a wide range of laboratory applications and is frequently used for clarifying liquids. Whatman™ Qualitative Filter Paper: Grade 1 Circles are widely used standard grade filter papers for routine applications with medium retention and flow rates.
| Thickness (Metric) | 180 μm |
|---|---|
| Flow Rate | 57mL/min. (water) |
| Particle Retention | >11 μm |
| Basis Weight | 87 g/m2 |
| Format | Disc |
| Airflow Rate | 13sec./100mL/sq. in. |
| Grade | Grade 1 |
| Material | Cellulose |
| Porosity | Medium |
| Filtration Speed | 150 sec. |
| For Use With (Application) | A widely used standard grade filter paper for routine applications with medium retention and flow rate. It covers a wide range of laboratory applications and is frequently used for clarifying liquids. |
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.
| 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 |
Cytiva Whatman™ Quantitative Filter Paper: Grade 541 Circles
Recommended when fast filtration of a gelatinous precipitate for gravimetric analysis is performed on a strongly acidic or alkali solution. Whatman™ Quantitative Filter Paper: Grade 541 Circles are acid hardened cellulose filters, which reduces ash to an extremely low level.
| Thickness (Metric) | 155 μm |
|---|---|
| Particle Retention | 22 μm |
| Type | Quantitative Filter Paper |
| Format | Disc |
| Airflow Rate | 3 s/100 mL/in2 |
| Quantity | 100/Pk. |
| Grade | Grade 541 |
| Material | Cotton Linters |
| Filter Type | Hardened Ashless |
| Porosity | Coarse |
| Filtration Speed | ASTM, 12 seconds; Herzberg, 34 seconds |
Cytiva Whatman™ Type WCN Cellulose Nitrate Membranes
Recommended for majority of routine applications, this membrane is manufactured under strictly controlled conditions. Whatman™ Type WCN Cellulose Nitrate Membranes narrow pore size distribution for improved surface capture and analysis.
| Color | White |
|---|---|
| Material | Cellulose Nitrate |
| Autoclavable | Autoclavable |
Cytiva Acrodisc™ Syringe Filters with Supor™ Membrane, Sterile
Sterile Acrodisc syringe filters featuring Supor™ membrane for high throughputs, fast filtration, and low protein binding. Available in 13 mm, 25 mm and 32 mm sizes, with pore sizes ranging from 0.1 μm to 5.0 μm.
| Material (Membrane) | PES |
|---|---|
| Sterility | Sterile |
Cytiva Whatman™ 1PS Disposable Phase Separating Paper
Creates a hydrophobic filter that can replace separatory funnel in some applications. Whatman™ 1PS Disposable Phase Separating Paper is impregnated with stable silicone to allow solvent phases to pass through while retaining aqueous phases.
| Type | Separator Paper |
|---|---|
| Material | Fiberglass/Silicone |
| For Use With (Application) | Liquid phase separation |
Cytiva Whatman™ Binder-Free Glass Microfiber Prefiters, Grade GF/D
Functions as a prefilter when used with GF/B microfiber filters. Whatman™ Binder-Free Glass Microfiber Prefilters, Grade GF/D provide efficient membrane protection, especially during liquid scintillation counting.
| Particle Retention | 2.7 μm |
|---|---|
| Temperature (English) Max. | 932°F |
| Shape | Circle |
| Description | GE’s Whatman Grade GF/D fine membrane filters are thick and offer good loading capacity. GF/D can also function as a prefilter when used with GF/B, and it comes in many sizes to fit most filter holders. |
| Temperature (Metric) Max | 500°C |
| Grade | Grade GF/D |
| Material | Borosilicate Glass |
| Thickness (Metric) | 675 μm |
| Flow Rate | 2.6 s/100mL/in2 |
| Type | Prefilter |
| Basis Weight | 121 g/m2 |
| Format | Disc |
| Thickness (English) | 0.02 in. |
| Autoclavable | Autoclavable |
| Waterflow Rate | 681 mL/min |
Cytiva Whatman™ ReZist Air Venting Filter, 50mm, PTFE, 0.2μm, sterile
Lightweight air venting units suitable for protective vents in-line filtration, and isolation applications when working with chemicallly harsh solvents
Cytiva Whatman™ Qualitative Filter Paper: Grade 2 Circles
Retains and absorbs more than Grade 1 filters, with a corresponding increase in filtration time. Whatman™ Qualitative Filter Paper: Grade 2 Circles are used for monitoring specific contaminants in the atmosphere and in soil testing.
| Thickness (Metric) | 190 μm |
|---|---|
| Flow Rate | Medium |
| Particle Retention | >8 μm |
| Format | Disc |
| Quantity | 100 Pk. |
| Grade | Grade 2 |
| Material | Cellulose |
| Porosity | Medium Fine |
| Filtration Speed | 240 sec. |
| For Use With (Application) | A standard grade filter used for monitoring specific contaminants in the atmosphere and in soil testing. |
Cytiva Whatman™ HEPA-Vent Filter
Strengthened glass filter media by dual lamination with a tough polyester monofilament. Whatman™ HEPA-Vent Filters are ideal for air and gas filtration applications where high retention, dirt-holding capacity and flow rates are required.
Cytiva Whatman™ Filter Funnel Replacement Reservoir
Filter Funnel Replacement Reservoirs for the 3-Piece Filter Funnel.
| Type | Filter Funnel Reservoir |
|---|
Cytiva Whatman™ Quantitative Filter Paper: Grade 40 Circles
Supports accurate analysis in applications sensitive to very low levels of background contamination. Whatman™ Quantitative Filter Paper: Grade 40 Circles are additionally useful in gravimetric analysis where ash content might affect weight measurements of combusted samples.
| Pore Size | 8 μm |
|---|---|
| Particle Retention | 8 μm |
| Airflow Rate | 21 s/100 mL/in2 |
| Quantity | 100 Pk. |
| Grade | Grade 40 |
| Material | Cotton Linters |
| Filtration Speed | ASTM, 75 seconds; Herzberg, 340 seconds |
| For Use With (Application) | Designed for gravimetric analysis and the preparation of samples for instrumental analysis.Gravimetric analysis for numerous components in cements, clays, iron, and steel products.As a primary filter for separating solid matter from aqueous extracts in |
| Thickness (Metric) | 210 μm |
| Flow Rate | Medium |
| Type | Quantitative Filter Paper |
| Format | Disc |
| Filter Type | Ashless |
| Porosity | Medium |
Cytiva Acrodisc™ Syringe Filters with Glass Fiber Filter
Available with GxF multi-layered glass fiber prefilter, providing two to four times the throughput of standard glass fiber prefilter devices, and allowing quick and easy filtration of your most difficult-to-filter samples.
| Pore Size | 1 μm |
|---|---|
| Housing Material | Polypropylene |
| Material (Membrane) | Borosilicate Glass Fiber |
| Sterility | Non-sterile |
Cytiva Whatman™ Kjeldahl Analysis Weighing Paper, Grade B-2
Dissolves residue-free in acid solution, which is critical in applications such as Kjeldahl analysis of nitrogen in soil. Whatman Kjeldahl Analysis Weighing Paper, Grade B-2 is thin, lightweight, and low in nitrogen for accurate chemical analysis.
| Thickness (Metric) | 0.04 mm |
|---|---|
| Format | Sheet |
| Quantity | 500 Pk. |
| Grade | B-2 |
| Material | Parchment Paper |