On a plastic part, the ISO code:
may be molded onto the backside.
is a standard six-digit number code.
F
location is consistent from vehicle to vehicle.
O identifies the strength of the plastic.
le of Contents

Describe one experiment in which the glass transition temperature and melting temperature of a totally amorphous thermoplastic material can be determined. show the relevant experimental results in a diagram which should be properly annotated with the two temperatures clearly marked. what is likely to happen to the curve in the diagram if the amorphous polymer is replaced by a thermosetting type?