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Table 2

Pore size of the various membrane and its percentage difference with Vontron ULP32-8040 membrane

ULPRO membranePWP (L/m2.h.bar)Mean pore radius (nm)Pore size difference (%)
ULP32-8040 (Vontron) 6.47 ± 1.5 0.33 n.a. 
NF-90 (tight) (Dow/Filmtec) 8 ± 2a 0.35a + 6 
NF-270 (loose) (Dow/Filmtec) 14 ± 2a 0.40a + 21 
ULPRO membranePWP (L/m2.h.bar)Mean pore radius (nm)Pore size difference (%)
ULP32-8040 (Vontron) 6.47 ± 1.5 0.33 n.a. 
NF-90 (tight) (Dow/Filmtec) 8 ± 2a 0.35a + 6 
NF-270 (loose) (Dow/Filmtec) 14 ± 2a 0.40a + 21 

n.a. Not applicable.

aReference: Imbrogno & Schäfer (2019).

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