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Showing 61–70 of 158 items.

Whatman 1440-125 Ashless Quantitative Filter Paper, 12.5cm Diameter, 8 Micron, Grade 40 (Pack of 100)

  • Diameter: 12.5cm
  • Retention: 8µm
  • Classic general purpose ashless filter paper; medium speed and retention; typical applications include gravimetric analysis for numerous components in cements, clays, iron and steel products
  • Primary filter for separating solid matter from aqueous extracts in general soil analysis and quantitative determination of sediments in milk
  • Use as apure analytical grade clean-up filter for solutions prior to AA spectrophotometry; high purity filter in collecting trace elements and radionuclides from the atmosphere
Whatman 1440-125 Ashless Quantitative Filter Paper, 12.5cm Diameter, 8 Micron, Grade 40 (Pack of 100)

Whatman 1440-055 Ashless Quantitative Filter Paper, 5.5cm Diameter, 8 Micron, Grade 40 (Pack of 100)

  • Diameter: 5.5cm
  • Retention: 8µm
  • Classic general purpose ashless filter paper; medium speed and retention; typical applications include gravimetric analysis for numerous components in cements, clays, iron and steel products
  • Primary filter for separating solid matter from aqueous extracts in general soil analysis and quantitative determination of sediments in milk
  • Use as apure analytical grade clean-up filter for solutions prior to AA spectrophotometry; high purity filter in collecting trace elements and radionuclides from the atmosphere
Whatman 1440-055 Ashless Quantitative Filter Paper, 5.5cm Diameter, 8 Micron, Grade 40 (Pack of 100)

Whatman 1440-090 Ashless Quantitative Filter Paper, 9.0cm Diameter, 8 Micron, Grade 40 (Pack of 100)

  • Diameter: 9.0cm
  • Retention: 8µm
  • Classic general purpose ashless filter paper; medium speed and retention; typical applications include gravimetric analysis for numerous components in cements, clays, iron and steel products
  • Primary filter for separating solid matter from aqueous extracts in general soil analysis and quantitative determination of sediments in milk
  • Use as apure analytical grade clean-up filter for solutions prior to AA spectrophotometry; high purity filter in collecting trace elements and radionuclides from the atmosphere
Whatman 1440-090 Ashless Quantitative Filter Paper, 9.0cm Diameter, 8 Micron, Grade 40 (Pack of 100)

Ahlstrom 6420-1850 Qualitative Filter Paper, 2 Micron, Medium Flow, Grade 642, 18.5cm Diameter (Pack of 100)

  • Quantitative analysis
  • Low ash content 0.06 percent
  • Untreated; high wet-strength
  • Consistent performance
  • Custom cut
Ahlstrom 6420-1850 Qualitative Filter Paper, 2 Micron, Medium Flow, Grade 642, 18.5cm Diameter (Pack of 100)

Ahlstrom 6310-2400 Qualitative Filter Paper, 10 Micron, Medium Flow, Grade 631, 24cm Diameter (Pack of 100)

  • Quantitative analysis
  • Low ash content 0.06 percent
  • Untreated; high wet-strength
  • Consistent performance
  • Custom cut
Ahlstrom 6310-2400 Qualitative Filter Paper, 10 Micron, Medium Flow, Grade 631, 24cm Diameter (Pack of 100)

Whatman 1091-935 Quantitative Filter Paper Sheet, 10 Micron, 6.2 s/100mL/sq inch Flow Rate, Grade 91, 610mm Length x 610mm Width (Pack of 500)

  • 61 x 61cm
  • Grade 91
  • Intended for less critical routine analysis; widely used within pharmaceutical laboratories for routine filtration
  • Extremely strong; high wet strength due to the addition of a small quantity of chemically stable resin
  • Normal qualitative applications will not introduce any significant impurities into the filtrate
Whatman 1091-935 Quantitative Filter Paper Sheet, 10 Micron, 6.2 s/100mL/sq inch Flow Rate, Grade 91, 610mm Length x 610mm Width (Pack of 500)

Whatman 1542-110 Hardened Ashless Quantitative Filter Paper, 11.0cm Diameter, Grade 542 (Pack of 100)

  • Diameter: 11.0cm
  • Retention: 2.7µm
  • This quantitative filter paper by Whatman provides high retention of fine particles under demanding conditions
  • Slow flow rate; very hard and strong with excellent chemical resistance
  • Often used in gravimetric metal determinations
Whatman 1542-110 Hardened Ashless Quantitative Filter Paper, 11.0cm Diameter, Grade 542 (Pack of 100)

Premium Filter Paper, 15cm, Pack of 100

  • Pack of 100
  • Qualitative filter paper
Premium Filter Paper, 15cm, Pack of 100

Whatman 1441-240 Ashless Quantitative Filter Paper, 24.0cm Diameter, 20 Micron, Grade 41 (Pack of 100)

  • Diameter: 24.0cm
  • Retention: 20µm
  • Fastest ashless filter paper
  • Recommended for analytical procedures involving coarse particles or gelatinous precipitates (iron or aluminium hydroxides)
  • Used in quantitative air pollution analysis as a paper tape for impregnation when determining gaseous compounds at high flow rates
Whatman 1441-240 Ashless Quantitative Filter Paper, 24.0cm Diameter, 20 Micron, Grade 41 (Pack of 100)

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