COA内容一般有：Color,Odor,Assay,Water insoluble matter,Subsidiary colouring matters,Loss on drying,Specific gravity,Dposition range,Flashpoint,Arsenic,Lead,Mercury,Cadmium,Heavy metals (as Pb),PAHs total,Benzene,Total Phthalate etc.(颜色、气味、化验、水不溶物、辅助着色剂、干燥损失、比重、分解范围、闪点、砷、铅、汞、镉、重金属(如铅)、多环芳烃、苯、邻苯二**盐等。)

不同原料成分COA内容不尽相同的，这跟具体成分及其所相关的标准有关的，有些原料成分COA报告将会包含Purity内容，因此有时有些客户要求提供原料成分纯度证明即PURITY CERTIFICATE(要求见下)，一般提供COA分析报告即可。

PURITY CERTIFICATE : Certificates of Analysys shall attest:
- the conformity with the mandatory purity criteria set out by EU Cosmetic Regulation 1223/2009 for that ingredient;
- the absence of any undesired/prohibited substances ording to EU Cosmetic Regulation 1223/2009 (e.g. heavy metals,SVHCs, CMRs, substances of Annex II of Cosmetic Regulation, etc.)
- the absence of some danger impurities as rmended by the Italian Health Institute (Antimony, Arsenic, Cadmium,Chromium, Nickel, Lead)
纯度证书:易观国际的证书应证明:
-符合欧盟化妆品规例1223/2009对该成分所订明的强制性纯度标准;
-根据欧盟化妆品规例第1223/2009号，没有任何不需要/禁止的物质(例如重金属、svhc、CMRs、化妆品规例附件II的物质等)
-没有一些意大利卫生研究所建议的危险杂质(锑、砷、镉、铬、镍、铅