♦ Set the cylindrical container on a flat base.
♦ Adjust the funnel so that its axis coincides approximately with that of the cylinder, with the tip of the funnel at a height of 10 cm above the cylindrical container top.
♦ Feed the aluminium oxide into the center of the funnel at about 40 mm above the funnel so as not to communicate any vibration to the apparatus, at about 20 to 60 g/min.
NOTE: If blocking occurs at the stem, facilitate the passage of the aluminium oxide with a piece of wire, taking care not to vibrate the cylindrical container.
♦ Stop the feed when the aluminium oxide has formed a cone above the top level of the cylindrical container and is spilling over.
♦ Remove the cone of surplus aluminium oxide by gently drawing a straight edge across the top rim of the cylindrical container, without communicating any vibration to the latter.
♦ Weigh the cylindrical container and its contents
Labulk-0317 Aluminium Oxide Bulk Density Tester