全氟碳化物树脂美国食品接触材料检测

发布时间：2020-12-24 热度：

　　全氟碳化物树脂美国食品接触材料检测

　　Perfluorocarbon resins 全氟碳化物树脂FDA测试标准：177.1550

　　水回流萃取2h Water extractives at refluxing temperature for 2 hours

　　8%乙醇回流萃取2h (对涂层) 8% ethanol extractives at refluxing temperature for 2 hours (for coating)

　　50%乙醇回流萃取2h(对表面积在6.45dm2 或以上,厚度不低于1.27mm的材料) 50% ethanol extractives at refluxing temperature for 2 hours(for sample that surface area≥6.45 dm2, and thickness≥1.27mm)

　　正庚烷回流萃取2h N-heptane extractives at refluxing temperature for 2 hours

　　乙酸乙酯回流萃取2h (对表面积在6.45dm2 或以上,厚度不低于1.27mm的材料)

　　Ethyl acetate extractives at refluxing temperature for 2 hours(for sample that surface area≥6.45 dm2, and thickness≥1.27mm)

　　蒸馏水中氟化物萃取(以氟计) Fluoride extractives (as fluorine) in distilled water

　　8%乙醇中氟化物萃取(以氟计)(对涂层) Fluoride extractives (as fluorine) in 8% ethanol (for coating)

　　50%乙醇中氟化物萃取(以氟计)( 对表面积在6.45 dm2 或以上,厚度不低于1.27mm的材料)

　　Fluoride extractives (as fluorine) in 50% ethanol(for sample that surface area≥6.45 dm2, and thickness≥1.27mm)

　　乙酸乙酯中氟化物萃取(以氟计) (对表面积在6.45 dm2 或以上,厚度不低于1.27mm的材料)

　　Fluoride extractives (as fluorine) in ethyl acetate(for sample that surface area≥6.45 dm2, and thickness≥1.27mm)

　　正庚烷中氟化物萃取(以氟计) Fluoride extractives (as fluorine) in n-heptane