Whatman Filter Paper, No. 4, 20-25μm, Qualitative


Fast flow & retention of coarse precipitates



Grade 4: 20-25 μm

Extremely fast filtering with excellent retention of coarse particles and gelatinous precipitates such as ferric hydroxide and
aluminum hydroxide. Very useful as a rapid filter for routine clean up of biological fluids or organic extracts during analysis.
Used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical.

 

Whatman LPP-1004-027 Filter Paper No. 4 Dia 2.7 cm (GA) Qualitative 400
Whatman LPP-1004-047 Filter Paper No. 4 Dia 4.7 cm (GA) Qualitative 100
Whatman LPP-1004-055 Filter Paper No. 4 Dia 5.5 cm (GA) Qualitative 100
Whatman LPP-1004-070 Filter Paper No. 4 Dia 7.0 cm (GA) Qualitative 100
Whatman LPP-1004-090 Filter Paper No. 4 Dia 9.0 cm (GA) Qualitative 100
Whatman LPP-1004-110 Filter Paper No. 4 Dia 11.0 cm (GA) Qualitative 100
Whatman LPP-1004-125 Filter Paper No. 4 Dia 12.5 cm (GA) Qualitative 100
Whatman LPP-1004-150 Filter Paper No. 4 Dia 15.0 cm (GA) Qualitative 100
Whatman LPP-1004-185 Filter Paper No. 4 Dia 18.5 cm (GA) Qualitative 100
Whatman LPP-1004-240 Filter Paper No. 4 Dia 24.0 cm (GA) Qualitative 100
Whatman LPP-1004-270 Filter Paper No. 4 Dia 27.0 cm (GA) Qualitative 100
Whatman LPP-1004-320 Filter Paper No. 4 Dia 32.0 cm (GA) Qualitative 100
Whatman LPP-1004-400 Filter Paper No. 4 Dia 40.0 cm (GA) Qualitative 100
Whatman LPP-1004-917 Filter Paper No. 4 Dia 46x57 cm (GA) Qualitative 100

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