The Gas Quality Measurement Laboratory (LPJG) located in Pogórska Wola near Tarnów is the first accredited GAZ-SYSTEM laboratory. The Laboratory is accredited by the Polish Centre for Accreditation for compliance with the international and European standard PN-EN ISO/IEC 17025:2018-02 as a Testing Laboratory – Accreditation Certificate No. AB 1228. The scope of the accreditation includes, among other things, physiochemical tests of natural gas and working environment measurements. One of the primary objectives and responsibilities of the Gas Quality Measurement Laboratory is to ensure proper metrological supervision over process gas chromatographs within GAZ-SYSTEM and to test the quality parameters of natural gas in the transmission network. The Gas Quality Measurement Laboratory ensures the delivery of reliable, credible, and useful test results and the full protection of the confidentiality of information and proprietary rights of its customers.