金属fda检测项目检测哪些项目：
1.不锈钢：21cfr175.300(标准)
a.水 Water Extractant
b.正庚烷bai Heptane extractant
c.8%的乙醇溶液8 percent alcohol extractant
2.ABS: fda 180.22(标准)
a.残留丙烯腈单体 Residual acrylonitrile monomer content
b.蒸馏水 distilled water extractant
c.3%醋酸或正庚烷中非挥发物提取量
3 percent acetic acid, or nheptane extractant 3.PP:21cfr177.1520(标准)
a.正己烷迁移量 extractable fraction in N- hexane
b.二甲苯溶出 soluble fraction in xylene
c.熔点 Melting Point
d.密度 Density
4.硅橡胶：21cfr177.2600(标准)
a.离子水中提取量 extracted with distilled water
b.正己烷提取量 extracted with n-hexane