ASTM D1814-70(2015)

1.1This test method covers the measurement of the thickness of units of all types of leather. It is not suitable for measuring the thickness of test specimens.

1.2The thickness of leather units may be reported in millimetres, ounces, or irons. Ounces are generally used when referring to the thickness of shoe upper leather. Irons are generally used when referring to the thickness of sole leather. (One ounce equals ¹/₆₄in. or 0.0156 in. or 0.396 mm. One iron equals ¹/₄₈in. or 0.0208 in. or 0.53 mm.)

1.3The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.4This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.