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FreMon Scientific is dedicated to the safe and efficacious processing and use of lifesaving blood, plasma and tissue products. FreMon Scientific creates platforms and devices like ZipThaw® and ZipSleeve® that are easy to use, fast, low cost and that enable inventory management.

FILTER PRODUCTS BY

In Stock

Covid-19 Items

Made in USA

Personal Protective Equipment

Quantitative Filter Paper

Apparel Attachments

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$25~$50(5)
$50~$75(7)
$75~$100(6)
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$100~$200(6)

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$100000~$3000000(0)

Airflow Rate

3 s/100 mL/in2

21 s/100 mL/in2

4 s/100 mL/in2

96 s/100 mL/in2

144 s/100 mL/in2

Content AndStorage

Store at room temperature.

Content And Storage

Store at room temperature.

Description

Grade 40 Ashless Filter Paper for Pollution Analysis, 240 mm circle (100 pcs)

Grade 41 Fast Ashless Filter Paper, 110 mm circle (100 pcs)

Grade 42 Ashless Filter Paper for Instrumental Analysis, 240 mm circle (100 pcs)

Grade 42 Ashless Filter Paper for Instrumental Analysis, 90 mm circle (100 pcs)

Grade 50 Filter for Quantitative Analysis, Thin, 42.5 mm circle (100 pcs)

Grade 42 Ashless Filter Paper for Instrumental Analysis, 47 mm circle (100 pcs)

Grade 541 Ashless Fast Filter Paper, 47 mm circles (100 pcs)

Grade 41 Fast Ashless Filter Paper, 47 mm circle (100 pcs)

Pierce Western Blotting Filter Paper, Extra Thick, 20cm x 20cm

Pierce Western Blotting Filter Paper, Extra Thick, 7cm x 8.4cm

Grade 40 Ashless Filter Paper for Pollution Analysis, 150 mm circle (100 pcs)

Grade 40 Ashless Filter Paper for Pollution Analysis, 55 mm circle (100 pcs)

Grade 42 Ashless Filter Paper for Instrumental Analysis, 55 mm circle (100 pcs)

Pierce Western Blotting Filter Paper, Extra Thick, 8.5cm x 9cm

Diameter Metric

110mm

47mm

90mm

18.5cm

150mm

240mm

5.5cm

Diameter Metric

55mm

15cm

42.5 mm

7cm

Filtration Speed

1870 sec.

ASTM, 250 seconds; Herzberg, 2685 seconds

ASTM, 12 seconds; Herzberg, 34 seconds

ASTM, 75 seconds; Herzberg, 340 seconds

Flow Rate

359mL/min

Medium

Fast

Slow

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

Excellent retention. Suitable for finest precipitates such as metastannic acid, barium sulfate, mercuric chromate, strontium sulfate. Used primarily for gravimetric and inorganic analyses, collecting precipitates that tend toward colloidal dispersions. Li

Designed for gravimetric analysis and the preparation of samples for instrumental analysis.For analytical procedures involving coarse particles or gelatinous precipitates (e.g., iron or aluminum hydroxides).Also used in quantitative air pollution analys

Designed for gravimetric analysis and the preparation of samples for instrumental analysis.For critical gravimetric analysis with the finest particle retention.

For qualitative or quantitative filtrations requiring vacuum assistance on B++chner or 3-piece filter funnels.

Typical applications include fiber in animal foodstuffs, gelatine in milk and cream, chloride in cement, and chloride and phosphorous in coal and coke.

Suitable for coarse and gelatinous precipitates requiring thorough washing on paper. Used in metallurgical labs for filtering iron and aluminum hydroxides, metallic aerosols and for determining silica in steel. Also used in environmental monitoring. Limit

Widely used for general gravimetric analysis. Retains medium-sized particles such as lead sulfate, calcium oxalate and magnesium ammonium sulfate. Limited wet strength.

FiltrationSpeed

1870 sec.

ASTM, 12 seconds; Herzberg, 54 seconds

ASTM, 75 seconds; Herzberg, 340 seconds

Format

Circles

Circle

Grade

Grade 541

Grade 41

Grade

1574

Grade 40

Grade 42

Grade 50

Item Description

GEG??s Whatman Grade 541 acid hardened cellulose filter paper features high wet-strength, high chemical resistance, and a large nominal particle retention for fast analytical filtration.

GEG–s Whatman Grade 41 environmental pollution papers are among the fastest filter papers in the Whatman ashless range. This gravimetric filter is well suited for quantitative analysis of soil and air.

GEG??s Whatman Grade 41 environmental pollution papers are among the fastest filter papers in the Whatman ashless range. This gravimetric filter is well suited for quantitative analysis of soil and air.

GEG??s Whatman Grade 42 quantitative papers have the finest retention of all Whatman ashless filter paper grades. Grade 42 is designed for gravimetric analysis and sample preparation for instrumental analysis.

GEG–s Whatman Grade 42 quantitative papers have the finest retention of all Whatman ashless filter paper grades. Grade 42 is designed for gravimetric analysis and sample preparation for instrumental analysis.

Whatman Grade 40 high-purity filters from Cytiva's business are general-purpose papers for quantitative analysis. Grade 40 filters are suitable for a variety of analytical filtration applications.

GEG??s thinnest Whatman brand hardened filter paper, highly glazed Grade 50 supports vacuum filtration in B++chner funnels or Hirsch funnels and enables strong retention of very fine crystalline precipitates.

Length Metric

100m

Material

High-quality cotton linters

Alpha Cotton Cellulose

Membrane

Membrane Not Included

Particle Retention

22µm

1 to 5µmm

2.5 µm

2.7 µm

5 to 10µmm

8 µm

Pore Size Metric

2.7µm

PoreSizeMetric

2.5µm

20µm

Pore Size Metric

8µm

20µm

2.5µm

PoreSize Metric

8µm

2.5µm

Porosity

Coarse

Fine

Medium

ParticleRetention

2.5 µm

20µm

20 to 25µmm

5 to 10µmm

Quantity

100/Box

100/Pk.

1/Pk.

100Pack

Quantity

50 sheets

Thickness Metric

210µm

Thickness

155 µm

200 µm

215 µm

210 µm

115 µm

Thickness Metric

115µm

200µm

155µm

215µm

Type

Hardened Ashless

Hardened low ash

Ashless

Width Metric

70mm

ThicknessMetric

215µm

200µm

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