Does durometer rating have units?

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Tried a search but was unable to comprehend exactly what they were saying, a bit like explanations for stiffness, physics .....
Would it be (kg cm-1)?

 

Nope. It is a unitless or dimensionless value from 1 to 100.

 

Here is the wiki article on it:

Shore durometer

Hardness-testing device

The Shore durometer is a device for measuring the hardness of a material, typically of polymers.^[1]

Higher numbers on the scale indicate a greater resistance to indentation and thus harder materials. Lower numbers indicate less resistance and softer materials.

The term is also used to describe a material's rating on the scale, as in an object having a "'Shore durometer' of 90."

The scale was defined by Albert Ferdinand Shore, who developed a suitable device to measure hardness in the 1920s. It was neither the first hardness tester nor the first to be called a durometer (ISV duro- and -meter; attested since the 19th century), but today that name usually refers to Shore hardness; other devices use other measures, which return corresponding results, such as for Rockwell hardness.

1. ^ "Shore (Durometer) Hardness Testing of Plastics". Retrieved 2006-07-22.

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Thanks Craig, unitless.

Sent PM re request, mark

 

Durometer is a measure of material stiffness. High durometer midsoles are more stiff. Low durometer midsoles are less stiff. As Craig stated, it is a dimensionless quantity.

Strain is another dimensionless quantity commonly used in biomechanics.

Good question, Mark!:drinks

 

This may be of some interest ...

Uncertainty evaluation of shore hardness testers.
Measurement, Volume 33, Issue 3, April 2003, Pages 251-257
M.I. Mohamed, G.A. Aggag

"Shore hardness is used for the determination of the indentation hardness of plastics and ebonite by means of durometers of two types: durometer type A, used for softer materials and durometer type D for harder materials. The indentation hardness is inversely related to the penetration and dependent on the modulus of elasticity and the viscoelastic properties of the material. The shape of the indenter, the force applied, the duration of its application and some other factors, to be discussed later, influence the results obtained throughout the test. "