To calculate the New Size (NS):
\[ NS = \frac{OS}{HSR} \]
Where:
A heat shrink size is a size at which an object constricts to after being exposed to heat, hence the name heat shrink. This size is determined by the thermal expansion properties of the material used in the heat shrink tubing or wrap. The heat shrink ratio indicates how much the material will shrink when heat is applied.
Let's assume the following values:
Using the formula:
\[ NS = \frac{4}{2} = 2 \]
The New Size is 2.