Ethical guidelines for supervision at the Arctic University of Norway is a short document, which mostly describes the obvious. A specific feature however is that a contract between the supervisor and the student is to be enclosed.
The normative document then lists elements to the effect that the supervisor is to ensure that the student will receive the best academic support for one’s work, that is, constructive, relevant and thorough feedback, ensuring a qualitatively good result.
In general, the guidelines provide with a good code of conduct. In the linked document on Ethical supervision, Christer Pursiainen’s understanding and style of ethical teaching and supervising is reflected in more detail.