What does the abbreviation MT mean in the metric system?

Answer 1

In some European and North American research facilities, a container that is utterly

devoid of material contents, and whose entire capacity is filled with a mixture of

equal parts by volume of air and vacuum, is customarily labeled "MT".

Answer 2

In the metric system, the abbreviation MT typically stands for "megatonne," which is a unit of mass equal to one million metric tonnes. It is equivalent to one billion grams or one million kilograms.