This method describes a procedure for evaluating the adhesive used in glued lap joints of corrugated containers. This method describes a laboratory procedure for evaluating glued lap adhesive applied to laboratory-prepared specimens made from the linerboard to be used in the manufacture of corrugated containers. A separate testing procedure for the finished containers is TAPPI T 813;Tensile Test for the Manufacturer's Joint of Fiberboard Shipping Containers.; This procedure measures heat resis-tance, water resistance, and cold resistance of the adhesive used in glued lap joints.