you can use springs to work out the mass
but you'll need a stopwatch and to know the Young's modulus of the springs
or some kind of container with markings on the side to display the volume of a liquid that was placed inside it
(fourd, Fri 4 Jun 2010, 20:06, 1 reply, 15 years ago)

Or alternatively
use a two pan balance which measure mass rather than weight. Things have no weight in zero-g but they still have mass. 350ml liquid will still balance a 350g mass on the other side. Although, you may need to create some centripetal force to keep the stuff on the balance itself.
( sandettie light vessel automatic New Twitter - @bollocksreally, Fri 4 Jun 2010, 21:42, Reply)