Posted on 3/24/2023
Reasons why you use incorrectly your analog Shore hardness tester.
You often hear of Shore A and D hardness scales… but are these the only ones?
Unfortunately, no.
In fact, they are much more than you imagine, here they are: A, B, C, D, DO, E, AO, O, OO, OOO, OOO -S, M and AM.
There’s a reason for all this variety, though.
You should know, in fact, that Shore hardness test scales refer to a specific hardness range: usually D scale is ...