Filters types

Water volume (ml)

Column sample volume (ml)

Porosity (%)

Mean porosity (%)

FS

165

175

170

400

400

400

41.25

43.75

42.5

42.5

FG

275

270

280

600

600

600

45.83

45.00

46.68

45.83

FGS

170

185

165

500

500

500

34.00

37.00

33.00

34.68