Young's Modulus and density of Nylons

Hellow.
I'm working on a physics project at school which invovles finding the Young's modulus of a piece of nylon, then using this to find out what type of nylon it is, and hopefuly obtain its density. My problem is that the only values for nylon I can find are for nylon in general, and not for individual types.
Does anyone know if/where I can find a decent reference?