POM塑料FDA测试,177.2470,177.2480,聚甲醛共聚物/均聚物测试
FDA 21 CFR 177.2470——POM塑料FDA测试(聚甲醛共聚物)
U.S.FDA CFR 21 177.2470-Polyoxymethylene copolymer(POM聚甲醛共聚物)
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Net chloroform-soluble extractives in water fraction氯仿可溶萃取物(去离子水浸取法) |
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Net chloroform-soluble extractives in n-heptane fraction氯仿可溶萃取物(正庚烷浸取法) |
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Net chloroform-soluble extractives in 8% ethanol fraction氯仿可溶萃取物(8%酒精浸取法) |
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Water extractives at refluxing temperature for 6 hours去离子水回流萃取 |
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n-heptane extractives at refluxing temperature for 6 hours正庚烷回流萃取 |
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所需样品:6PCS,每样表面积至少100cm2 |
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测试周期:常规5-7个工作日 |
FDA 21CFR177.2480——POM塑料FDA测试(聚甲醛均聚物)
U.S.FDA CFR 21 177.2480-Polyoxymethylene homopolymer(POM聚甲醛均聚物)
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Net chloroform-soluble extractives in water fraction氯仿可溶萃取物(去离子水浸取法) |
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Net chloroform-soluble extractives in n-heptane fraction氯仿可溶萃取物(正庚烷浸取法) |
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Net chloroform-soluble extractives in 8% ethanol fraction氯仿可溶萃取物(8%酒精浸取法) |
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Water extractives at refluxing temperature for 6 hours去离子水回流萃取 |
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n-heptane extractives at refluxing temperature for 6 hours正庚烷回流萃取 |
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Density密度 |
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Melting point 熔点 |
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所需样品:6PCS+20g(密度,熔点),每样表面积至少100cm2 |
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测试周期:常规5-7个工作日 |
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