Tensile Test Methods for Plastics: ASTM D638

日常使用的各種物品常採用樹脂材料 (塑膠) 製成。近年來，塑膠由於其強度和輕量性，已開始用於汽車和飛機等運輸工具的結構材料。在這些應用中，必須瞭解這些塑膠的機械強度特性。ASTM D638 指定塑膠和其他樹脂材料的拉伸強度試驗方法，並可用於計算其機械性質，以及列出使用的試驗框架和配件之準確度要求。

特色

±1% 的試驗力量準確度

ASTM D638 要求符合 ASTM E4 Class 1，準確度在指定試驗力量的 ±1% 內之測試力量準確度。島津的 AG-X plus 系列、AGS-X 系列和 EZ-X 系列試驗框架及荷重元，都符合 ASTM D638 的試驗力量準確度要求。
以 10 μm 絕對準確度和 ±0.5% 相對準確度進行延長測量

用於 ASTM D638 的試樣為啞鈴型，具有 25 mm 或 50 mm 標距；建議使用 50 mm 標距。

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