I hope this question hasn't been asked before.
I exported a database in CSV from SimaPro and then imported it into OpenLCA.
I then built a product system in OpenLCA from a random process (Polycarbonate production) and compared its inventory results with the ones obtained from SimaPro for the same process.
The number of elementary flows for the two inventories is identical, however, some minor differences are present in the amounts (1-5 % differences, with most of them being <1%).
I struggle to understand why this is happening, as I'm expecting to obtain exactly the same inventory for the two identical processes with two identical databases.
Any ideas on why this is happening?
Thank you in advance!