The standard number corresponds to the specific guidelines and requirements set by regulatory bodies or industry organizations for the manufacturing and use of a particular steel grade, in this case A696-90a(2012). The standard number ensures that the steel grade meets certain quality, performance, and safety standards, making it suitable for use in the construction industry. By adhering to the standard number, manufacturers and users can ensure the reliability and consistency of the steel grade, further enhancing its reputation as a game changer in the construction industry.