BOLA flip page catalog
BOLA flip page catalog

Information about pore sizes

Information about pore sizes – what do these indications mean?

ClassIndicationPoresize in μm
00P 500250 - 500 *
0P 250160 - 250 *
1P 160100 - 160 *
2P 10040 - 100
3P 4016 - 40
4P 1610 - 16
5P 1,6 1 - 1,6
* not feasible with PTFE at the moment

Typical applications – often asked.

PoresizeApplication
50 μmFiltration of coarse particles, distribution of gas in liquids
5 μmFiltration of medium-sized particles, laboratory filtration, valve for packings (gas permeable, leak proof)
1 μmFiltration of aqueous solvents, elimination of particles
0,45 μmPrefiltration of aqueous solvents, HPLC solvents, protein solvents and alcohols, sterile filtration of air or other gases
0,2 μmUltracleaning of organic solvents and alcohols, sterile filtration of air or other gases
0,05 μmUltracleaning of solvents or gases (virus)
Typical applications – often asked.

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