- This unification indicates the procedure for determining the measurement of the percentage linear shrinkage of a molded piece obtained from thermosetting plastic material subjected to molding under certain pressure and temperature conditions, compared to a typical mould. 2 - The determination does not give rise to predictions regarding the stabilization of the material over time.
UNI 4285-1959 history
1959UNI 4285-1959 Plastic material testing. Hot hard materials. linear shrinkage percentage