如果我导入特定的纳米形式，然后通过表面处理对其进行修改，我可以通过提交一份注册文件来注册这两种形式吗？

如果我导入特定的纳米形式，然后通过表面处理对其进行修改，我可以通过提交一份注册文件来注册这两种形式吗？

If I import a specific nanoform and then modify it with a surface treatment, can I register the two forms by submitting a single registration dossier?

每种物质只能提交一份注册档案。因此，同一物质的所有形态（包括纳米形态）都必须包含在一份注册档案中。这意味着您将拥有一个用于该物质注册的单一注册号，涵盖非纳米形态和纳米形态。表面处理纳米形态和非表面处理纳米形态是两种独立的纳米形态，您需要在注册档案中分别对其进行表征和报告，并为每种纳米形态提供相应的危害数据集。如果您使用该方法通过一组纳米形态来注册单个纳米形态，则务必注意，当一个注册同时涵盖表面处理纳米形态和非表面处理纳米形态时，表面处理纳米形态和非表面处理纳米形态必须先验地不包含在同一组纳米形态中。

You can only submit one registration dossier per substance. Therefore, all the forms, including nanoforms, of the same substance must be covered by one single registration dossier. This means that you will have a single registration number for the registration of the substance, covering both the non-nanoform and nanoform(s).   A surface-treated and a non-surface treated nanoform are two separate nanoforms that you will need to characterise and report separately in your registration dossier, with a corresponding hazard dataset for each nanoform.  If you use the approach to register individual nanoforms via a set of nanoforms, it is important to note that where both surface-treated and non-surface-treated nanoforms are covered by a registration, surface treated and non-surface-treated nanoforms must a priori not be included in the same set of nanoforms.