How to create a defined shore A-surface

Hello guys,
Our SLA 3D-Printer is called formlabs 3. I am going to print with a flexible 80A - resine. I guess the softness depends on the internal construction and the wall thickness of the surface. The measure unit is defined as "Shore A-D". Are there CAD-Modells for this resin "flexible 80A" which simulates a variety of specified softness? May you recommend 3d-Modells to test the softness?
Thanx,
Steffi