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
White cellulose filter paper discs 5.5 cm diameter pack of 100

Lab Safety Supply Inc

Lab Safety Supply Inc Qualitative Filter Paper 5.5 cm 11 micron PK100

SKU CH-H5NE-KVVEC

Qualitative cellulose filter paper discs, 5.5 cm diameter with 11 micron pore size, supplied in packs of 100

  • Product typeGround Fault and Current Leakage Testers
  • Qualitative filtration for gases and liquids using cellulose discs
  • 11 micron pore size retains fine particles during analysis
  • 5 cm diameter fits standard laboratory funnels and holders
  • 2 mm thickness provides consistent flow rates across samples
  • Pack of 100 discs supports high-volume testing workflows

Qualitative Filter Paper 5.5 cm Diameter

This qualitative filter paper is manufactured from cellulose with a consistent pore size of 11 micron. Each disc measures 5.5 cm in diameter and 0.2 mm thick. The flat disc shape and Grade 1 rating make it suitable for routine laboratory filtration of gases and liquids. Pack contains 100 pieces.

Medium Porosity Cellulose Material

The cellulose construction provides medium porosity for standard gravity filtration tasks. With a uniform 11 micron pore size it retains fine particulates while maintaining adequate flow rates for general qualitative analysis. Thickness of 0.2 mm offers mechanical stability during handling and use. FDA standards compliance noted.

PK100 Package Quantity

The pack of 100 discs supports high-volume testing workflows without frequent reordering. Flat disc format allows compact storage and easy dispensing in laboratory settings. Non-fluted design suits standard funnel use for both gas and liquid filtration applications. Restricted from sale in no states.

How it compares

Measured against everything we stock in Meters, Testers & Measuring Tools, at today’s prices. Recalculated every night.

Price $6.99
Cheaper than about 94% of the 3,030 comparable items (median $54.99).

Specifications

Product
Brand nameLAB SAFETY SUPPLY
Product typeGround Fault and Current Leakage Testers

Questions about this item

How do I install the 5.5 cm disc in a Büchner funnel, and what step is often missed?

Place the cellulose disc flat on the funnel plate, wet it with a few millilitres of the solvent you will filter so it seals without air pockets, then apply vacuum; the step most users skip is pre-wetting, which lets liquid bypass the 11 micron pores.

What replacement or maintenance will the PK100 pack require during routine lab work?

Each 0.2 mm thick disc is single-use; after filtering gas or liquids you discard it and take a fresh one from the 100-count package, so the only ongoing need is reordering when the box runs low.

What limit appears first when the paper is used continuously for fine particle retention?

The 11 micron pore size clogs quickly with fine precipitates, so flow rate drops before the cellulose matrix degrades; once the surface blinds you must swap to a new disc.

More in Meters, Testers & Measuring Tools

Similar items