SIPHON
A class with identifier
http://staging4.data.posccaesar.org/iso/15926-4/rdl/RDS311084
| Definition | A <SIPHON> is an <ARTEFACT> and a <FLUID CONDUCTOR> and a <CLOSED FLUID TRANSPORTER>that is a a tube used to convey liquid upwards from a reservoir and then down to a lower level of its own accord. Once the liquid has been forced into the tube, typically by suction or immersion, flow continues unaided | 
| ISO number | 21105 | 
| RDS number | RDS311084 | 
| Source | Norsok CAD symbol libraries, Z-CR-004, draft 3, October 1996 | 
| Piping |