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1 – 15 of 1,024 results
1

Fisherbrand™ Wet-Strengthened Qualitative Filter Paper Circles

Coarse cellulose fiber papers remove particles >25μm

EDGE
Flow Rate Fast
Particle Retention >25 μm
Format Disc
Grade P8
Material Cellulose
Porosity Coarse
For Use With (Application) Use for coarse particles and gelatinous precipitates.
2

Fisherbrand™ Quantitative Grade Filter Paper Circles

Manufactured to reduce silicon dioxide, calcium oxide and ferric oxide levels

EDGE
Format Disc
Material Alpha Cotton Cellulose
3

Fisherbrand™ Qualitative Grade Plain Filter Paper Circles - P5 Grade

Ideal for clarifying and removing particles of 1μm and larger, and in applications that do not require a low-ash or ashless paper

EDGE
Flow Rate Slow: 60mL/min.
Particle Retention 5 to 10 μm
Format Disc
Grade P5
Material Cellulose
Porosity Medium
Filtration Speed 230 sec.
For Use With (Application) General lab uses: clinical and spot testing, clarifying pharmaceuticals
4

Fisherbrand™ Qualitative Filter Paper: Grade 6 Circles

Filters particles twice as fast as Qualitative Filter Paper Grade 5. Fisherbrand™ Qualitative Grade 6 Filters provide fine particle retention for boiler water analysis.

EDGE
5

Cytiva Whatman™ Quantitative Filter Paper: Grade 42 Circles

Filters and retains extremely small particles. Whatman™ Quantitative Filter Paper: Grade 42 Circles are suitable for processes that require ashing.

EDGE
Thickness (Metric) 200 μm
Pore Size 2.5 μm
Flow Rate Slow
Type Quantitative Filter Paper
Format Disc
Airflow Rate 96 s/100 mL/in2
Quantity 100 Pk.
Grade Grade 42
Material Cotton Linters
Filter Type Ashless
Porosity Fine
Filtration Speed 1870 sec.
For Use With (Application) Designed for gravimetric analysis and the preparation of samples for instrumental analysis.For critical gravimetric analysis with the finest particle retention.
6

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.

EDGE
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.
7

Cytiva Whatman™ Qualitative Filter Paper: Grade 5 Circles

Retains the fine precipitates encountered in chemical analysis. Whatman™ Qualitative Filter Paper - Grade 5 Circles are excellent clarifying filters for cloudy suspensions and for water and soil analysis.

EDGE
Thickness (Metric) 200 μm
Pore Size 2.5 μm
Flow Rate Slow
Format Disc
Quantity 100 Pk.
Grade Grade 5
Material Cellulose
Porosity Fine
Filtration Speed 1420 sec.
For Use With (Application) A standard grade clarifying filter excellent for cloudy suspensions and for water and soil analysis.
8

Fisherbrand™ Qualitative Grade Plain Filter Paper Circles and Sheets - P4 Grade

Ideal for clarifying and removing particles of 1μm and larger, and in applications that do not require a low-ash or ashless paper

EDGE
Flow Rate Slow: 25mL/min.
Particle Retention 4 to 8 μm
Format Disc
Grade P4
Porosity Medium Fine
Filtration Speed 730 sec.
For Use With (Application) General purpose: slightly slower, more retentive than P5. Retains MgNH4PO4, silver sulfide, cadmium sulfide. In air monitors, collects particulates and chromic acid mist
9

Fisherbrand™ Qualitative Grade Plain Filter Paper Circles and Sheets - P2 Grade

Ideal for clarifying and removing particles of 1μm and larger, and in applications that do not require a low-ash or ashless paper

EDGE
Particle Retention 1 to 5 μm
Format Disc
Grade P2
Porosity Fine
Filtration Speed 5mL/min.
For Use With (Application) Ideal for clarifying and removing particles of 1μm and larger, and in applications that do not require a low-ash or ashless paper
10

Fisherbrand™ Qualitative Grade Plain Filter Paper Circles - P8 Grade

Ideal for clarifying and removing particles of 20μm and larger, and in applications that do not require a low-ash or ashless paper.

EDGE
Flow Rate Fast: 160mL/min.
Particle Retention 20 to 25 μm
Format Disc
Quantity 100/Pk.
Grade P8
Material Cellulose
Porosity Coarse
Filtration Speed 55 sec.
For Use With (Application) Suitable for coarse and gelatinous precipitates. Retains Fe(OH)3, Al(OH)3, metallic sulfides, iron ores. For clarifying solutions, oils. For zinc analysis (Fe ppt removal). Size 19cm (09-804) widely used for sugar analysis.
11

Fisherbrand™ Qualitative Grade Plain Filter Paper Sheets - P8 Grade

Ideal for clarifying and removing particles of 1μm and larger, and in applications that do not require a low-ash or ashless paper

EDGE
Flow Rate Fast: 160mL/min.
Particle Retention 20 to 25 μm
Format Sheet
Grade P8
Material Cellulose
Porosity Coarse
Filtration Speed 55 sec.
For Use With (Application) Suitable for coarse and gelatinous precipitates. Retains Fe(OH)3, Al(OH)3, metallic sulfides, iron ores. For clarifying solutions, oils. For zinc analysis (Fe ppt removal). Size 19cm (09-804) widely used for sugar analysis.
12

Cytiva Whatman™ Quantitative Filter Paper: Grade 41 Circles

Use for quantitative air pollution analysis as a paper tape for impregnation when determining gaseous compounds at high flow rates or for quantitative air pollution analysis. Whatman™ Quantitative Filter Paper: Grade 41 Circles are commonly used in preparing samples for metal analysis after nitric acid digestion.

EDGE
Thickness (Metric) 215 μm
Pore Size 20 μm
Flow Rate Fast
Particle Retention 20 μm
Type Quantitative Filter Paper
Format Disc
Quantity 100 Pk.
Material Cotton Linters
Porosity Coarse
Filtration Speed ASTM, 12 seconds; Herzberg, 54 seconds
13

Cytiva Whatman™ Qualitative Grade Plain Circles and Sheets - Grade 3

Used for high precipitate capacity and increased wet strength. Whatman™ Qualitative Grade Plain Circles and Sheets - Grade 3 provide double the thickness of Whatman Grade 1.

EDGE
Thickness (Metric) 390 μm
Grade Grade 3
Material Cellulose
For Use With (Application) A standard grade filter used in qualitative analytical techniques to determine and identify materials. For use in büchner funnels.
14

Cytiva Whatman™ Qualitative Filter Paper: Grade 113 Circles

Strengthened with chemically stable resin additive. Whatman™ Qualitative Filter Paper: Grade 113 Circles boast the fastest flow rate of the qualitative grades. Crepe surface promotes ultra high loading capacity.

EDGE
Thickness (Metric) 420 μm
Particle Retention 30 μm
Format Disc
Quantity 100 Pk.
Grade Grade 113
Material Cellulose
Filtration Speed 1.3 s/100 mL/in2
15

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.

EDGE
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.