Two notching devices for sample preparation of single edge notched spe
cimens and polymer pipe sections have been designed, fabricated and te
sted. The apparatuses are capable of producing a notch with high preci
sion up to a third decimal place. The utilization of these notchers in
the Physical Test Laboratory at Novacor Chemicals Ltd has lead to imp
roved consistency in test results and has simplified the sample prepar
ation process.