The ID method has been tested on non-flat samples such as PET bottles- once cut different areas of the bottles can be measured easily without the need deform or bend them during measurement.
Measurements of non-flat parts is not possible using the traditional haze method.
![](https://www.rhopointamericas.com/wp-content/uploads/sites/2/2022/07/why-buy-id-09-1.png)