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)
Net chloroform-soluble extractives in water fraction***可溶萃取物(去离子水浸取法) |
Net chloroform-soluble extractives in n-heptane fraction***可溶萃取物(***浸取法) |
Net chloroform-soluble extractives in 8% ethanol fraction***可溶萃取物(8%酒精浸取法) |
Water extractives at refluxing temperature for 6 hours去离子水回流萃取 |
n-heptane extractives at refluxing temperature for 6 hours***回流萃取 |
所需样品:6PCS,每样表面积至少100cm2 |
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)
Net chloroform-soluble extractives in water fraction***可溶萃取物(去离子水浸取法) |
Net chloroform-soluble extractives in n-heptane fraction***可溶萃取物(***浸取法) |
Net chloroform-soluble extractives in 8% ethanol fraction***可溶萃取物(8%酒精浸取法) |
Water extractives at refluxing temperature for 6 hours去离子水回流萃取 |
n-heptane extractives at refluxing temperature for 6 hours***回流萃取 |
Density密度 |
Melting point 熔点 |
所需样品:6PCS+20g(密度,熔点),每样表面积至少100cm2 |
测试周期:常规5-7个工作日 |
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