Laboratory/Team
- Quick links
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Lubricants
- Engine Oils for Passenger Cars, Light and Heavy Duty vehicles
- Agro (Offroad) Lubricants
- 2 and 4 stroke engine oils
- Gas Engine Oils
- Marine Lubricants
- Industrial Oils
- Compressor Oils
- Gear Oils
- Transmission Oils
- Turbine Oils
- Hydraulic Oils
- Circulating Oils
- Power generation oils
- Metalworking oils
- Rust Preventive oils
- Textile oils
- Other oils
- Greases
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- Cylinder Oils
- Engine Oils
- Heat Transfer Oils
- Special Fluids
- Additives and Chemicals
- Inhibited
- Uninhibited
- Greases
- Special Fluids
- Waste oil Management
- Monitoring
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Lubricants
The high quality and control of the services performed at the Petroleum Products Testing Laboratory (PPTL) are directly related to the competency of the personnel who carry out all petroleum products testing and sampling activities. The managerial and technical personnel working at the PPTL features reach professional skills and experience thanks to the strict staff selection according to particular criteria. Lab's personnel continuously maintain and improve their experience and skills applying and executing international, regional and national standard test methods. More than 150 International and Bulgarian standards are applied in the PPTL using calibrated test and measuring equipment.
A good evaluation of the personnel of the PPTL is their excellent performance in the International Laboratory Proficiency Testing Programs organized by ASTM International and Chevron Corporation every year, participation in new product development and consulting assistance during in-service lubricant monitoring programs.
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PRISTA OIL HOLDING EAD has specialists competent in testing activities and exhibiting professional attitude towards their work
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![]() dipl.eng. Petia Radoeva Chemist PPTL Sampling Manager |
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![]() dipl.eng. Svilen Mirchev Specialist-tester PPTL Metrological Assurance Manager |





