What do the people who test diapers use to tell if the diapers will hold urine and feces? Do they collect old specimens or do they have special babies used for this?
Well, water would probably work for urine. I would think that feces wouldn’t be much of a problem either.
What the hell is a “special baby” anyway?
I know I’m getting OTT here, but when people are given an award of life time diaper supplies, does it continue to the other end? That is, do the Pampers get suspended until it is time for the Depends?
I heard somewhere that the folks at Proctor Gamble use canned pumpkin as a “test fecal material” since the real stuff is rather objectionable. 
Prairie Rose
If you’re not part of the solution you’re just scumming up the bottom of the beaker.
From “News of the Weird”
1995 – In October, The New York Times reported that Kimberly-Clark Corp. had received a patent for chemically realistic, synthetic feces that it regards as crucial for testing diapers and incontinence garments. Technicians had concluded that makeshift substances, such as mashed potatoes, peanut butter and canned pumpkin pie mix were inadequate because they separated into liquids and solids more quickly than feces does.
Well, for sure, the SDMB is living proof that you can know everything there is to know and still be full of what it takes to fill a diaper.
Ray