Tony M Sep 4, 2018:

@ Asker This is a perennial problem!
My own view is that, unless you are dealing with "standard" abbreviations widely used in the field, it is better to NOT attempt to translate them and then create fresh abbreviations — which will be meaningless out of context! FR often abbreviates (sometimes needlessly!) because of rather long, cumbersome expressions, whereas these are often more concise in EN, and abbreviation isn't really necessary.
HOWEVER, if these abbreviations are used alone elsewhere in the document — for example, in the text, or as labels on diagrams — or, worse still, throughout documentation from the same company!, there may be a case to be made for retaining the FR abbreviations, simply for cross-reference purposes, and to avoid subsequently modifying all other documents in the company! If I do this, I often try to provide a glossary at come point of the abbreviations used, along with their original FR expansions + the EN translation; the csutomer can then choose to include this or not as they see fit.

I think this is what I would be tempted to do in this case...