CSU, in partnership with the ASTM F15.05 subcommittee on pet products, has begun a research project to use CT scanning technology and an inflator balloon to collect anthropometric data around different points of "narrowing" in the digestive tract of different sized dogs. Additionally CSU will collect head, jaw, and mouth dimensions. Among other things, the intent is for this data to fuel to development of choking/ingestion test cylinders for dog toys, the dog equivalent of the human toy small parts cylinder.