The industries where the non-reactive material is required for packing purposes, there is a huge demand for glasses. Especially in the pharma industry, in chemical factories and for ready-to-eat food materials. Glass is the only material which is brittle in nature. And because of their tendency to generate inner strain distribution, they are fully capable of showing their volatile nature. It is very common that sometimes glass that is not of good quality can no make any sound but gets cracked inside and damage itself. This type of disruption in glasses cannot be predicted easily. In order to avoid such situations, it would be nicer if the material is tested prior to its sale. For this in the case of glass, we can use Polariscope strain viewer for glass.
Other than these, the Polariscope strain viewer is also used to detect the climatic changes which can come due to the expansion and contraction coming from continues atmospheric disturbance. It usually happens when the glass items are in transit condition from one geographical location to another. By getting transferred from extremely hot to the extremely cold area they get cracked or damaged. Or else they become so weak that a little bit of impact can break them.