The fuel laboratory of JSC "TZS" in Vnukovo airport is certified in the certification system of civil aviation facilities. Certificate of conformance No. КК011117.071 dd. 13.12.2017, valid until 13.12.2020. The scope of activity of the laboratory includes the study of 45 different types of aviation lubricants and special liquids by 35 quality indicators. The laboratory's personnel is certified, has special education and high qualification. The laboratory of fuels and lubricants works 24/7.