The story begins with a phone call from the production manager, alerting the lab manager, Rachel, to a sudden issue with the latest batch of polycarbonate sheets. The sheets, which were supposed to be flat and smooth, were arriving at the warehouse with noticeable warping and curvature.
The team decided to take a sample of the warped sheets and perform some tests to determine the cause of the warping. They started by conditioning the sample according to the ASTM D618-21 standard and then measured its dimensions and flatness. astm d618-21 pdf
It was a typical Monday morning at the quality control laboratory of Plastics Inc., a leading manufacturer of plastic sheets used in various industries. The lab was responsible for ensuring that all products met the required standards, and ASTM D618-21 was one of the most critical specifications. The story begins with a phone call from