First, I want to welcome you to the Chronicles. Glad to see you posting already and asking questions. Hope to see you around.
Now, as for your question: Not that I've ever come across, no. If you look at a wide variety of books, you'll come across some, even by the same writer (and no few times within the same book), where the chapters are very brief, and others extremely long -- a variance of from anywhere to a page or two to chapters 60-80 pages in length.
Essentially, it should be divided according to the internal structure of the narrative; a chapter, like a paragraph, should have a certain structure and drive toward a culmination. Once that is reached, that is the logical place to end one chapter and begin a new one. If you are seeking to build tension, you may choose to end a chapter with a surprise revelation, and begin the next with the characters' response to that revelation. On the other hand, you can also deal with both within the same chapter, and then have another thematic or narrative thread be the focus of the next chapter. And so on, and so on... there are any number of ways to decide what should or shouldn't be in a chapter, or where it should end.
However, it is very unusual, I think, to first write and then to divide into chapters. Usually that is a part of the initial writing process, as one feels that a certain caesura in dramatic narrative has taken place; a pause for breath, as it were, or to shift from one aspect of the story to another. Writing it all as a continuous narrative without such breaks, and then imposing them afterward, is likely to be very awkward and artificial. Market demands may require you to do so, perhaps -- on that you'd have to ask agents, publishers, etc. -- but as far as the work itself, don't forget there have been more than a few novels which do not have chapters at all. Two in the fantasy field that come to mind right off are William Beckford's Vathek and H. P. Lovecraft's The Dream-Quest of Unknown Kadath. So take a look at the novel as written, and see if this may be the best style for it, as well. If not, be careful on how you divide it up, as this can alter the flow of narrative, making it either a case of a book where one chapter flows into another and keeps the reader turning the pages, or it can act as a broken road, where the chapter breaks act like gaps between huge chunks of concrete, and stall a reader's momentum.
In brief, look at the novel itself, and find which sort of divisions (or lack of same) work best for the flow of the work itself. That would be the best way to choose where, or if, you wish to divide it into smaller chapter divisions.
