I’m Francesco and I’m an Italian PhD student.

The European technical standard EN ISO 13790 refers to “scattering glazing”.

What are they exactly? How are scattering films made? Can you give me some examples, e.g. a commercial product? Can the common LoE glass be “scattering glazing”?

With Regards

Francesco-

Not being familiar with this standard, I can only guess that "scattering glazing" might refer to what we in the U.S. call "frosted glass." This material allows a significant amount of light through, but a person cannot see images through the glass. Frosted glass is often used in bathrooms to allow light in without being able to see inside. It is easy to etch glass as a hobbyist by applying hydrofluoric acid to the surface, and then rinsing it off. I do not know how frosted glass is made commercially, but it is also possible to sand blast glass to make it "frosted."

Low-E (low infrared emissivity) glass is always made as a double or triple pane window with one or more of the interior surfaces to the collection of panes having the low-emissivity coatings. Imagine a double-pane glass unit where the surfaces are labeled as 1,2,3,4 from the outside to the inside. Surfaces 2 and/or 3 would have the low-e coating. Therefore, it would be easy to imagine a low-e frosted glass unit, where the surface 4 would be the surface treated to make it scatter the light, and surfaces 2 and/or 3 could still be used for the low-e coating. You would need to search the internet to see if such glass is commerically available.

Again, this is just my guess at what "scattering glazing" might mean.

Wikipedia has some definitions of light scattering.

At the moment i have nothing to tell you but will tell you later after talk with my uncle he is professional.

An engineer who works in the field of technical standards let me notice that “selective low-emissivity coatings” are considered as non-scattering glazing (s. paragraph “G.5.1 Total solar energy transmittance for glazing” in EN ISO 13790).
On the other hand, I have not understood yet what a “scattering glazing” is exaclty (how they are made, examples of commercial products and so on).
Thank you for your interest
With Regards