Rationale

Per the 2018 rev scope D1708 has already been superseded by ASTM D638 (for larger specimens) and ASTM D882 (for thin sheets / films). There are technical issues with the measurement of elongation in D1708 as the areas outside the reduced section are included in the "gauge length" section, this can result in a 54% error. Either D638 or D882 will be sufficient for any materials that would be tested to D1708.