Welcome to the site. I will answer assuming that you come from a non western culture ( your nickname is not readable) and English is not your first language, and that you are a student.
For a model to become standard it means that it has been evaluated many times against data and has always been verified. For example: the heliocentric model of our solar system.
As far as I know this is the only criterion to call a model "standard", that it has many verifications and has not been falsified by any measurements.
Edit in response to the comment by the questioner:
If you are thinking of the standard model of particle physics the wikipedia article is a start.
For the heliocentric there is also information there.
One has to search for the theories and verifications with data for each model.