For whatever reason, you may have to delete a specification. It may be that your user account doesn’t have this functionality approved so you may need to contact your system admin to get a group deleted.
On the right-hand side of the item’s listing on a page, you can click the image of a bin to delete this. Once this is clicked a dialogue box will open up with the text, “You are about to delete a Specification”. Clicking the green proceed button will delete this. The cancel button will close this window and take you back to your list of product groups.