Standard list of odors?
The problem with odors or taste is that it is a form of Qualia. Whether cyanide smells like bitter almonds or is odorless is subjective. Similarly, whether Phenylthiocarbamide taste extremely bitter or completely tasteless is also subjective (depending on genetics). 

Even in everyday life, coffee/wine/spices taste different to different people. Even for fruits, the Durian fruit can taste and smell fragrant to certain people but utterly disgusting to others. This is probably why the perfume industry is making billions - if everyone agree that a certain smell is "nice", everyone would be using the same perfume. (Do Genes determine our perfume preferences?)

So I believe it is difficult to have a standard list of odors. Even in the event that the list is created, it will not be universally agreed upon. There are bound to be disputes. Colours on the other hand, (which is also a form of Qualia), are less subjective (everyone can agree that chlorine is green and bromine is brown).