I've seen this incredibly often on StackOverflow, but also on a few other internet sites. "Standart" is an extremely common misspelling of "standard".
Is there a reason in how English is taught to non-native speakers, or another language which spells standard in this way, which results in the confusion?
Usually when I see this the rest of the conversation is otherwise flawless, which gives this an air of a careless mistake — e.g. confusing the English word with a cognate in another language. However, I don't know enough about other languages to tell if that's what's going on, or if it's something else.