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