ASTM F 2136 – Notched, Constant Ligament-Stress (NCLS) Test to Determine SIow-Crack-Growth Resistance of HDPE Resins or HDPE Corrugated Pipe – Testing Equipment
5 Apparatus5.1 Blanking Die—A die suitable for cutting test specimens.Acceptable dies are: the type L die per Test Method D1822, with holes drilled or punched in the tab areas after die cutting; a die with the dimensions and tolerances specified in Fig. 2. 5.2 Stress-Crack Testing Apparatus—A lever loading machine, with a lever arm ratio…