Shore durometer °Sh or >90 °Sh the results are not to be trusted. The measurement must be redone with adjacent scale type. Durometer is a dimensionless quantity, and there is no simple relationship between a material's durometer in one scale, and its durometer in any other scale, or by any other hardness test. Using linear elastic indentation hardness, a relation between the ASTM D2240 hardness and the Young's modulus for elastomers has been derived by Gent and by Mix and Alan Jeffrey Giacomin. Gent's relation has the form where formula_2 is the Young's modulus in MPa and formula_3 is the ASTM D2240
Michigan Shore-to-Shore Trail Michigan Shore-to-Shore Trail The Michigan Shore-to-Shore Trail (also known as the Michigan Riding and Hiking Trail) is a trail that runs between Empire on Lake Michigan and Oscoda on Lake Huron across the Lower Peninsula of Michigan. It is open to horseback riders and hikers but not bicycles. The trail's western end is located within the Sleeping Bear Dunes National Lakeshore. The trail, going from west to east, travels through the Boardman River valley and follows the Au Sable River for about . The trail was developed by trail riders in 1962 and travels through mixed hardwood and conifer forests.