Determine if an item is soulbound

[doofus]

I am parsing the tooltip for gear in my bags, and for each item it tells me either "Binds when picked up" or "Binds when equipped". It does that on gear that's either used/soulbound or unused in the bags.

For "Binds when equipped" gear, is there a way to find if it has been used, ie has become soulbound?