Sandre stands for Service d’administration nationale des données et des référentiels sur l’eau, or National Service for Water Data and Common Repositories Management of France.
These data are based on reference datasets (code lists) managed by the Sandre.
The Sandre makes available specification documents (1) free of charge for water data interchanges.
It manages reference datasets (code lists - ex : taxa, monitoring parameters...) (3).
(3) Sandre reference datasets are elementary alphanumerical (ex : chemical substances code lists ) or geographic information (BDCarthage via the online metadata catalogue or the geoviewer) whose use is free of charge, and necessary for the well functioning of a system (software such as LIMS, databases, etc).