ASTM D2412 is a testing standard used to determine the stiffness and load deflection of plastic pipe. This summary is intended to help you understand the basic procedure and equipment required to complete this test with accuracy. For a complete description of the test, please refer to ASTM D2412.
1. Depending on the type of plastic pipe being tested, cut the specimen to the lengths specified. Be sure to cut the pipe cleanly. Condition the specimens to the temperature detailed in the specification. Prepare and test at least three specimens for each pipe.
2. Measure the length, average diameter, and average wall thickness of the specimen.
3. Load the specimen by centering it on the bottom plate and apply just enough force to keep the sample in place with the upper platen.
4. Begin compressing the specimen at the specified rate.
5. Be aware of line cracking, wall cracking, wall delamination, and break. Record the load and deflection when these events are observed.
6. Stop the test at break, when the load no longer increases with deflection or when the specimen reaches the required maximum deflection.