The link below also contain Safety Info & Starting Percentages.
Flavorah Specific Gravity & MSDS
All the MSDS-documents, along with specific gravities, are available on the flavor details pages 
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Not sure it was added when you first posted this?, But noticed they now show Acetoin, Acetyl Propionyl & Diacetyl levels for each flavour from their own testing from the link you provided in the OP. Which may be of use to some people and all credit to Flavorah for doing this.