Classification and storage of nitrates: While updating Safety Data Sheets (SDSs), I found some confusing changes in the listing of some nitrates.

The recent SDS has iron (III) nitrate listed as Transport Hazard Class 8, and not as previously listed as Dangerous Goods Class 5.1. Magnesium nitrate also no longer has an oxidising listing for transport. Calcium nitrate doesn't either.

Why is this? This listing confuse me for storage requirements of the chemicals too.