The spray test is experienced in two ways:
![](https://www.bea74.com/media/cache/product_detail_picture/2021/06/4993-test-aspersion-detection-site.png)
The spray test is experienced in two ways:
The local spray test is used to locate the leak, estimate its value and find out if there is more than one.
The spray test as a whole is used to find out if there is a leak and to estimate its value.
Localization is not an option in this case.