Gross weight and volume how to be different across sales orgs

We sell the same material in both the US and Brazil. The materail master basic data gross weight UOM is LB and the Volume is Cubic feet, as the US was the first implementation. Now starting our Brazil implementation we need the gross weight and volume to be KG and Cubic meters respectively flowing into all of the SD documents.

Internet searches did not turn up any ideas. What have other international companies done on this subject?