GWSW Ontologie
| Naam | Omtreklocatie  |
Circumferential location  |
| Synoniem | Radiale afstand |
| URI | Omtreklocatie |
| Definitie extern | [EN13508-2+A1] The clockface is determined from the angle subtended at the centre of the cross section (the point defined by half the height and half the width between the observation and the soffit of the pipeline. |
| Definitie intern | Where an observation require only a single clockface reference this shall relate to the centre of the observation. |
| Datum start/wijz | 2013-02-05 / 2013-09-03 |
| Waardetype | [h] integer |
| Is kenmerk van | Inlaat [inverse] |
| Is type | Kenmerk |