Why is the Sabine equation considered an equation, but not a law?

[Mohamed Nabil]

Hello brothers,
I have been studying much of acoustics recently, and I've been confronted by the following question:

why Sabine equation is not a law?
I mean, It has been used and experimented under certain conditions, and as I get it, that's what you need to call an equation a Law.

I'll appreciate your help among that.
Thank you all,,,

 

[Nugatory]

Whether something is a called law or not is mostly just a historical accident. In the past it was more fashionable to call solidly established results laws and nowadays it is less so.

 

[Klystron]

Wallace Sabine had an acoustics unit, the sabin, named for his contributions to physics.

A unit of acoustic absorption equivalent to the absorption by one square foot of a perfect absorber.