… Organic surface-active agents (other than soap); surface-active preparations, washing … preparations, whether or not containing soap, other than those of heading 34.01. …
Explanatory notes
… of this heading, an emulsion should not be considered as having a stable character if, after being left to stand for … (1) solid particles are visible to the naked eye, (2) it has separated into visually distinguishable phases or (3) it … alkylates or other hydrophobic raw materials which have escaped sulphation or sulphonation. They may also …