Foreword

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This document was prepared by Technical Committee ISO/TC 54, Essential oils.

This third edition cancels and replaces the second edition (ISO 3520:1998), which has been technically revised.

The main changes are as follows:

— the title has been changed;
— the structure has been revised;
— 3.1 has been reworded to update the botanical name to Citrus bergamia Risso et Poit and to add the Calabrian type;
— in 4.1, minor changes to a) relative density (formerly 0,883 max); b) refractive index (formerly 1,470 max); c) optical rotation (formerly +32° max); d) residue on evaporation (formerly 6,40 % max); and e) CD value (formerly 1,180 max) have been included;
— in 4.2, β–pinene % max has been reduced (formerly 9,5 %) and limonene % max has been increased (formerly 45 %);
— in Annex A, the chromatograms in Figures A.1 and A.2 and the data have been updated.

Any feedback or questions on this document should be directed to the user’s national standards body. A complete listing of these bodies can be found at www.iso.org/members.html.

BS ISO 3520:2022

Essential oil of bergamot [Citrus bergamia Risso et Poit], Calabrian type

Current

Published:

31 May 2022