D1708-18 – Standard Test Method Technical Guide

📐 Specimen Geometry and Dimensions

ASTM D1708-18 defines the tensile testing of plastics using a standard microtensile “dog-bone” specimen. While superseded for general use by D638 (Type V specimen) or D882, it remains the standard for specific material specifications relying on a historical dataset derived from this geometry. The precisely machined reduced section ensures uniform stress concentration during testing.