[Dilatometers] It'S All Relative!

In this article the author emphasises that test results for dilatometers are always relative to calibration and testing conditions. Like many instruments, the dilatometers must be calibrated with a sample of known properties. When comparing data generated from one dilatometer to another, or from one company to another, it is common to encounter different expansion values. Even though the expansion values may be different, the paper concludes that it would be wrong to automatically conclude that one is correct while the other is wrong. It is possible that both values are correct because of the relative nature of dilatometry.