References: AS2885.0 Cl 1.5.65 Defined Term AS2885.1 Section 6 Station Design
A station in an AS/NZS 2885 pipeline system is a facility that controls or measures pipeline fluids. This is a fairly broad term and reflects the common industry terminology of an 'MLV Station' or 'Compressor Station' or 'Scraper Station'.
This is different from station piping which refers specifically to piping designed to a station piping code like AS 4041 or ASME B31.3.
A station may contain station piping, or it may not. It may also contain, or be, a pipeline assembly and many other things.