We supply hydrometers suitable for use with LST Fastfloat and other tungstate heavy liquids.
These glass hydrometers are 290 mmm long, and measure liquid densities from 2.500 to 3.00 g/mL, with markings at a resolution of 0.01 g/mL. The hydrometers fit nicely in a 100 mL measuring cylinder. In our laboratory we have found it requires a volume of at least 85 mL of heavy liquid for a convenient measurement.