The operations of the Petrol Group are based on the implementation of high-quality standards.

In addition to certified quality management systems ISO9001:2015, environmental management ISO 14001:2015 and energy management ISO 50001:2018, are in the integrated quality system included also the requirements for the food handling system HACCP, the health and safety system OHSAS and the information security system in according to standard SIST ISO 27001. Petrol is also the holder of the certificate OHSAS 18001:2012 for the system for safety and health at work for comprehensive solutions in the field of district and energy systems, water supply systems, efficient lighting and energy management of facilities.

Overview of certificates and laboratory accreditations

^* Petrol d.d., Ljubljana is certified under the International Sustainability and Carbon Certification (ISSC) for the sustainable supply of biofuels, which means a documented and traceable pathway from the production of the raw material to the final product.
^** Petrol d.d., Ljubljana is a holder of Responsible Care Certificate for its activities relating to storage, logistics and retail network of service stations in Slovenia and granted the right to use the initiative’s logo.
^*** Petrol d.d., Ljubljana is a holder of FSC certificate for the production of wood chips for heat. The FSC certificate, issued by the international nongovernmental organization Forest Stewardship Council, promotes environmentally sound, socially beneficial and economically viable forest management.
^**** AEO Certificate is issued by the Customs Administration of the Republic of Slovenia, which carries out the supervision and inspection of certificate holders. The certificate facilitates access to customs simplifications, fewer physical and documentary checks, preferential treatment in the event of controls, the possibility of choosing a place for such controls and the possibility of prior notification. The AEO Certificate confirms the following criteria: appropriate security and safety standards, appropriate record of compliance with customs requirements, reliable system of managing of commercial and transport records, allowing appropriate customs controls, and proven financial solvency

The Petrol Group includes the Central Slovenian Petroleum Laboratory, conducting tests and analyses of fuels, lubricants and chemical products, and the Control Authority for measuring instruments for liquid flow rate, tyre pressures and equipment operating under pressure.

The Petrol Laboratory is accredited and has an implemented quality management system in accordance with the requirements of standard SIST EN ISO/IEC 17025:2005 (General requirements for the competence of testing and calibration laboratories). As part of parent company Petrol d.d., Ljubljana, the Petrol Laboratory operates as an independent and neutral institution, conducting its activities for other clients. It has 57 accredited testing methods.

The Control Authority for measuring instruments for liquid flow rate, tyre pressures and equipment operating under pressure operates as part of the technical support for Petrol. In accordance with standard SIST EN ISO/IEC 17025:2005 (General requirements for the competence of testing and calibration laboratories), Petrol d.d., Ljubljana, has 19 accredited testing methods for control of measuring instruments for flow rate, tyre pressure, equipment under pressure, leakproofness of stationary steel reservoirs, wall thickness control for liquid fuel reservoirs, and measuring breakdown strength of insulation for liquid fuel reservoirs.