Qualified and accredited API 653 Above ground Tank Inspectors are available to undertake mandatory periodic tank inspections as required in accordance with relevant Standards. Inspection of above-ground storage tanks include thickness testing to ensure all surfaces have the required minimum wall thickness (see Tank Integrity testing below).
Underground tanks are regularly cleaned and inspected internally to identify any faults and remove residual sludge and other un-desirable matter to ensure continuing cleanliness of the product stored.
- Steel tanks are inspected for signs of corrosion and other issues which could compromise the life expectancy of the tank.
- Fibreglass tanks are inspected for signs of de-lamination which could compromise the life expectancy of the tank.
Inspection of under-ground tanks include vacuum testing of tank and pipelines to ensure the integrity of the tank has not been compromised (see Tank Integrity testing below).
A report is prepared following any tank inspection which include all results from the investigation and any recommendation for repair and improvements to prevent any further degradation of the tank and the risk of contamination to the environment.
Tank Integrity Testing
Petrolink is able to conduct Tank Integrity Testing . This involves a team of trained industry professionals addressing matters such as;
Thickness testing of tank shells, floors and roofs to ensure the material thickness is still above the minimum required as per industry standards. This enables the technician to calculate remaining life expectancy: ensuring the tank is safe to use at least until next mandatory tank inspection. Thickness testing of tanks is usually conducted as part of Above-ground Tank Inspections (see above).
The integrity of underground tanks is tested using a highly-specialised vacuum testing system and methodology. A specific computer software programme analyses the results which are incorporated into a report.
Pipeline Integrity Testing
Hydrostatic testing of pipelines includes pressure testing of the pipelines using either water or the product in the pipelines if mixing the product with water is unacceptable.
Pneumatic testing of new pipelines if hydrostatic testing with water could pose problems if all water cannot successfully be removed following the testing. Mixed hydrostatic and pneumatic testing with nitrogen if the product in the pipelines cannot be removed for the testing.
All pipeline integrity testing is conducted in accordance with relevant Australian Standards.
Fuel Bowser Calibration
Petrolink Engineering technicians are trained and certified to undertake mandatory fuel bowser calibrations to meet standards in accordance with the National Measurement Institute (NMI). This service us usually undertaken as a component of a legislated fuel maintenance program.
Calibration of fuel bowsers and delivery systems is essential for accuracy, cost control and inventory management.
All works in compliance with and to relevant Australian Standards and Regulations (AS 1940, AS 4897, AS 4037, NMI, API 2000, API 653 and more.)