See this example properly formatted in the QUT Cite tool.
Standard in-text citation examples are in Getting started - In-text citation.
Author, A. A. (Year). Title of the standard (Standard No. 1234). Name of database.
Author, A. A. (Year). Title of the standard (Standard No. 1234). http://xxxxxx
Standards Association of Australia. (2003). Australian standards for civil engineering students: Structural engineering (AS HB 2.2-2003). Techstreet Enterprise.
Standards New Zealand. (1987). Concrete construction (NZS 3109:1987). https://www.standards.govt.nz/assets/Publication-files/BSP/NZS3109-1987+A1-2.pdf
Normally the author would be the organisation that made the standard.
For more information on Corporate authors, see the Authors button below.
If you get the standard from a database use the name of the database.