Test method ASTM F2634 is used to determine the quality of polyethylene (PE) butt fusion joints.  This test is desinged for pipes with a diameter greater than 2.37" and a wall thickness greater than 0.25".

Stretch wrap film, commonly made from polyethylene plastic, is a clear packaging film normally used to wrap large or bulk items for transportation or warehousing purposes. ASTM D5458 is a testing standard designed to measure the “cling” between two layers of stretch wrap film. This is a relevant measurement because two or more layers of stretch wrap are usually in contact with each other. For example, stretch wrapped pallets require several layers of film to secure and are usually moved across, or transported on top of, other wrapped pallets. This post is designed to help you understand the test procedure and equipment needed to perform this test with certainty. When you are ready to test products to this standard, please refer to and follow the steps in the official ASTM specification.

Several factors are driving manufacturers to try and reduce the size, and more importantly thickness, of semiconductors devices used to make microchips. As consumers push for gadgets that are smaller, lighter, yet more powerful, engineers must find ways to reduce the size and weight of the circuit boards and processors used to power them.  In addition, an overall increase in demand for electronics has decreased the available supply of silicon wafers used in the fabrication of internal electronic components. Developing devices that use less semiconductor material and identifying the best edge cutting and surface treatment methods for these components could decrease material use and manufacturing errors.