Lopes, AnaRavasco, FransciscoOliveira, Luísa2013-02-112013-02-112012-02http://hdl.handle.net/10400.18/1245This document describes the encoding and mapping strategy for chemical occurrence data from the Portuguese authorities, how the Standard Sample Description is populated, the transformations required to support the standard terminology supplied by EFSA and how these transformations will be maintained in the future.engSegurança AlimentarData StandardisationElectronic TransmissionChemical Occurrence datareport