NPO guidelines and liquids. Which ones are considered clear?

I realize that NPO guidelines are not necessarily based on scientific evidence but how would you treat liquids like orange juice without pulp? Is that considered ‘clear’? The ASA states that fruit juices without pulp are considered ‘clear’ but I have always thought that to include stuff like apple juice. What if its orange juice WITH pulp? Obviously not considered clear but how long would you wait? 4hours? 6 hours?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: Anesthesiology Source Type: forums