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White cellulose filter paper discs 11 cm diameter grade 42 pack 100

Lab Safety Supply Inc

Lab Safety Supply Inc 12K926 Filter Paper 2.5um 11cm Grade 42 PK100

SKU CH-S2W4-128BP

Quantitative Grade 42 cellulose filter discs, 11 cm diameter with a 2.5 µm pore size, supplied in a pack of 100

  • TypeGround Fault and Current Leakage Testers
  • Quantitative analysis with 2.5 µm pore precision
  • 11 cm cellulose discs handle gases and liquids
  • Grade 42 rating meets FDA standards for lab use
  • Slow porosity ensures fine particle retention at .17 mm thickness
  • Pack of 100 discs supports high-volume testing workflows

Quantitative Filter Paper Grade 42

This cellulose filter paper provides a precise 2.5 micron pore size for quantitative analysis of gases and liquids. Each disc measures 11 cm in diameter with a consistent 0.17 mm thickness. The pack contains 100 individual discs suitable for laboratory filtration workflows.

Laboratories performing gravimetric analysis

Technicians requiring consistent particle retention for regulatory compliance will find this grade matches standard methods. Users needing fluted filters for faster flow rates or different pore sizes for coarse separation should select alternative grades.

2.5 micron pore specification

This single value determines the particle size retained during quantitative filtration. Matching this porosity to the method requirement confirms the paper is the correct part for the application.

Highlights

  • Quantitative analysis with 2.5 µm pore precision
  • 11 cm cellulose discs handle gases and liquids
  • Grade 42 rating meets FDA standards for lab use
  • Slow porosity ensures fine particle retention at .17 mm thickness
  • Pack of 100 discs supports high-volume testing workflows

Specifications

BrandLAB SAFETY SUPPLY
TypeGround Fault and Current Leakage Testers

Questions about this item

How can I verify the filter paper is performing correctly after installation?

Check that the filtrate is clear with no visible particles passing through the 2.5 micron pores and that the flow rate matches the slow porosity rating for Grade 42 cellulose discs.

What does the package contain and what additional items are needed?

The pack includes 100 cellulose filter paper discs, 11 cm diameter, 0.17 mm thick, Grade 42, 2.5 micron pore size. A funnel or filter holder must be purchased separately.

Which grade and pore size should I choose for quantitative analysis?

Grade 42 with a 2.5 micron pore size is specified for quantitative work with gases and liquids where fine particle retention and slow flow are required.

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