ASTM D6319 ISO 11193 医用手套拉伸试验
醫療用手套可以由乳膠,丁晴及乙烯樹脂等材料所製成,這些全部都必須遵守食品與藥物管理局所指定的性能等級,以及國際規範包括 ASTM D6319, ASTM D5250, EN 455-2, ISO 11193-1:2002, and ISO/AWI 11193-2。為了保證檢查員與患者的交叉汙染不會發生,必須提升材料的老化影響,測試必須檢查材料在斷裂時的強度及伸長量,以確保量測值會介於平常的使用範圍內,我們發現主要的測試是困難的,因為通常須量測應變,而傳統的應變量測裝置會對材料有所損害,而造成黏著點不必要的破壞。
我們的解決方案是使用我們的高解析度, 非接觸式影像應變計 來精確的量測伸長量而沒有額外的負載或刀口而使結果有誤差,此外,我們建議使用 氣動式夾置具 來夾持脆弱的試片避免撕裂或造成滑移現象,這些夾置具可以調整夾持壓力且可以選擇夾面的尺寸或樣式,例如包覆一層橡膠,鋸齒狀,波浪狀或是平板金屬。對於此測試,我們使用 5544 萬能測試系統 加上這些夾置具。
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