We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Box of 100 white cellulose filter paper discs 11 cm diameter

Lab Safety Supply Inc

Lab Safety Supply Inc 12K894 Qualitative Filter Paper 11 cm PK100

SKU CH-MZS6-DWZX7

Qualitative cellulose filter paper discs, 11 cm diameter with 11 micron pore size, supplied in packs of 100

  • TypeGround Fault and Current Leakage Testers
  • Qualitative filtration for gas and liquids
  • 11 µm pore size captures fine particles
  • 11 cm diameter fits standard funnels
  • 2 mm thickness handles wet loading
  • 100 discs per pack supports high-volume testing

Lab Safety Supply 12K894 Filter Paper

This qualitative filter paper is designed for laboratory filtration of gases and liquids. The cellulose discs come in a pack of 100 for routine analytical work. Grade 1 rating indicates standard retention for general qualitative analysis. It suits technicians who need consistent medium-porosity media.

11 cm diameter with 11 micron pores

Each disc measures 11 cm across with a uniform 11 micron pore size and .2 mm thickness. Medium porosity handles typical precipitate retention and clarification tasks. The flat disc shape fits standard funnel holders without fluting. Capacity runs out when finer particle retention or higher throughput is required.

Replaces generic qualitative discs

This pack upgrades from ungraded or inconsistent filter papers that vary in pore structure. The FDA-listed standard ensures repeatable results for regulated workflows. The jump is worth it when documentation calls for a defined grade and pore size. Not for buyers who need membrane filters or quantitative ashless grades.

Highlights

  • Qualitative filtration for gas and liquids
  • 11 µm pore size captures fine particles
  • 11 cm diameter fits standard funnels
  • 2 mm thickness handles wet loading
  • 100 discs per pack supports high-volume testing

Specifications

BrandLAB SAFETY SUPPLY
TypeGround Fault and Current Leakage Testers

Questions about this item

Will the 11 micron pore size and 0.2 mm thickness work with my existing Büchner funnel and vacuum flask?

The 11 cm diameter discs fit standard 11 cm funnels, and the 11 micron pore size with 0.2 mm thickness is compatible with typical vacuum filtration setups for liquids and gases.

How can I verify the Grade 1 cellulose discs are filtering correctly once I start using them?

A clear filtrate with no visible fibres passing through and a consistent flow rate indicate the 11 micron pores are performing to the FDA-listed Grade 1 specification.

Does the PK100 pack contain 100 ready-to-use discs or do I need to buy boxes or sleeves separately?

The package quantity is 100 individual 11 cm cellulose discs; no additional boxes, sleeves or accessories are required.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.