[djaychela]

FTR no-one I know (other than in old school industry about 20 years ago) used the UK 'Ton' any more. One place of work made this clear by having different pronuncication ('Tonn-ey') as they were an old-school foundry. And the spelling is different from wherever I've seen it.

The nuclear industry was using metric weights fully when I did my apprenticeship in it in the late 1980s. Good job really as I think a conversion error could be catastrophic.

Same goes for gallons though, US gallon is smaller than a UK one.

[bobthepanda]

NASA is metric but its whole supply chain was not leading to such a catastrophic conversion error: https://en.wikipedia.org/wiki/Mars_Climate_Orbiter#Cause_of_...