From a tech writer’s point of view, standard text is any text that can be reused (sometimes called reused) in several different documents without many changes from the original. It is a copy that is typically provided by a customer that includes information about an organization’s history, facilities, or capabilities. Since these things do not change, or change very little, there is no point in reinventing information every time it is needed. All the writer has to do is update and update the standard text and place it where needed.
From a programmer’s point of view, standard text is sections of code that must be included in various places in a program with little or no change. It is also used to refer to languages that are verbose; when a programmer has to write a lot of code to do a small job.
From a legal point of view, the standard text is a standard provision in a contract. It is the reason why when you buy a home, the contract is twenty pages long and you must sign here, here, here, initial here, and sign here.
For the word nuts (like me) here’s a bit of history. The term dates back about a hundred years when things ran on steam power. Due to the high pressure inside a steam boiler, the steel had to be strong and thick. Everything big and strong was called repetitive. Around the same time, when printing was done with steel plates that could be used over and over again, the text that was to be widely reproduced was called repetitive. Newspapers, especially, used boilers so that papers could be printed across the country just by sending the printing plates to each location.