KCA is only allowed to use those standards for certain labs under an exclusivity agreement.
Feedstock was pure Delta 8 with some small quantity of delta 9 - as is the case with just about any delta 8 you’ll make/find.
I haven’t seen significant discoloration, and certainly not after backfilling with argon. I assuming you’re referring to the interface? It’s hard to tell because of how light refracts at the interface of a fluid. I mean, bear in mind that you can see details of the background right through the material and the material is sitting under argon on those jars. I’m sure if you leave it open to oxygen indefinitely it may discolor, but certainly under argon there isn’t ongoing discoloration. Anecdotally speaking, I haven’t seen this material discolor as rapidly/egregiously as delta 9 or delta 8.
Edit: also it’s a bright orange cap above a nearly colorless liquid.