Pipeline pre-commissioning is the process of proving the ability of a pipeline and piping systems to contain product without leaking. This product may be liquid, gaseous or multiphase hydrocarbons, water, steam, CO₂, N₂, petrol, aviation fuel etc.

What pre-commissioning means?

Precommissioning means the testing, checking and other requirements specified in the Employer's Requirements that are to be carried out by the Contractor in preparation for Commissioning as provided in GC Clause 24 (Completion) hereof.

What is pre-commissioning vs commissioning?

"COMMISSIONING" is putting into service. And, pre-commissioning is - making the system and/or equipments ready for putting into service.