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White cellulose filter paper discs, 9.0 cm diameter, pack of 100

Lab Safety Supply Inc

Lab Safety Supply Inc 12K937 Quantitative Filter Paper 9.0 cm PK100

SKU CH-7VY0-7RSGZ

Quantitative filter paper discs, 9.0 cm diameter, grade 541 cellulose, 21–23 µm pore size, 0.2 mm thick, pack of 100

  • TypeGround Fault and Current Leakage Testers
  • Cellulose construction ensures pure filtration results
  • 0 cm discs fit standard laboratory funnels
  • Fast porosity speeds up gravimetric analysis workflows
  • 21 to 23 micron pores capture fine particulates reliably
  • Pack of 100 sheets supports high-volume testing needs

Quantitative Filter Paper 9.0 cm PK100

This quantitative filter paper comes in discs with a 9.0 cm diameter and a thickness of 0.2 mm. The pack contains 100 cellulose discs rated Grade 541 with fast porosity and a pore range of 21 to 23 micron. It is intended for gravimetric analysis of gases and liquids in laboratory workflows.

Installation and typical issues

The discs are ready to use without preparation; simply place a disc in a suitable funnel or holder. Because the paper is not fluted, air can become trapped under the disc and slow filtration if it is not seated flat. Handle the 0.2 mm sheets with clean forceps to avoid tears or contamination that would affect mass measurements.

Practical limits of the medium

The 21 to 23 micron pore range retains fine precipitates but will clog quickly with high-solids slurries or viscous fluids. Cellulose composition means the discs are not suitable for strong acids, strong bases or organic solvents that degrade the fibres. FDA-listed grade confirms material purity for regulated work, but the paper cannot withstand high-temperature ashing above typical cellulose limits.

Highlights

  • Cellulose construction ensures pure filtration results
  • 0 cm discs fit standard laboratory funnels
  • Fast porosity speeds up gravimetric analysis workflows
  • 21 to 23 micron pores capture fine particulates reliably
  • Pack of 100 sheets supports high-volume testing needs

Specifications

BrandLAB SAFETY SUPPLY
TypeGround Fault and Current Leakage Testers

Questions about this item

How can I confirm the 9.0 cm filter paper is performing correctly after installation?

The paper should pass gas and liquids at the fast porosity rate with the 21 to 23 micron pore range retaining the expected particulates.

What comes in the box and what must I purchase separately?

The package contains 100 discs of Grade 541 cellulose filter paper. No additional items are included.

Which grade and diameter should I select for quantitative analysis?

Choose the Grade 541 paper with the 9.0 cm diameter for quantitative work requiring fast porosity and 0.2 mm thickness.

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