Paragraph 5 APPARATUS
5.1
Filter crucible with porosity of 5 to 20 microns.
5.2
Drying oven regulated at 250°C ± 10°C.
5.3
Sintered glass funnel with porosity of 5 to 20 microns.
Filter crucible with porosity of 5 to 20 microns.
Drying oven regulated at 250°C ± 10°C.
Sintered glass funnel with porosity of 5 to 20 microns.