原文由 sega741(sega741) 发表:
另附录I对六价铬的方法提到:
1。determination of the content of total chromium2.safety assessment of the toy material 就是说对二类我们可以测总铬小于0.005就可以说合格。另可以进行安全评估,评估产品生产工艺,和产品本身的材料一般不含六价铬一般也可以认为是安全合格的
标准都提到:
The method in Annex F is not sufficiently sensitive for category I and II toy materials.
For Chromium VI the method in Annex F the limit of quantification is higher than the migration limit for category I and II toy materials.
能做到三类就可以了