I saved some screenshots of one of my Portal 2 playthroughs a while ago and discovered the following that I think you all might find interesting:
I think these labels on these containers are interesting. For starters it appears that Aperture performs tests on children as well because of the first line on the label. For age it has a box for adult or child.
And in this image (although it may be hard to see)
There are different types of labels. Because for the age it says old or young on one label and another it says adult or child.
Also, I find it interesting that on each of the labels they all have (I believe) a twenty-year expiration date. Which I found interesting because (I may be mistaken) but I thought the personality sphere told you that you only have twenty years. I think it is also interesting how on the containers they refer to the subjects as being "packed" on this date.
Hope you find this interesting too!