Megagramma
Megagramma, sive tunna, est mensura massae.  Unum megagramma (1 Mg) est etiam mille chiliogrammata (1000 kg) et decies centena milia grammatum (1 000 000 g).

Notae

Nexus externi
NIST Special Publication 811, Guide for the Use of the International System of Units (SI).

Physica
Unitates physicae