With the support of the Arab accreditation Center, the director of the quality office of the Libyan advanced Center for chemical analysis, engineer Sadiq al-haraishi They attended a number of intensive training courses within the quality infrastructure program in Libya conducted by the Ministry of planning in the Republic of Egypt, where the courses were as follows 1-general requirements for the approval of the coefficient of proficiency tests (PT) ISO 17043 2-estimation of uncertainty in measurement (Uncertainty) for calibration and testing laboratories And verification of test methods (Method Validation) in testing and calibration laboratories according to the specifications of 2017: ISO/IEC 17025 3-ISO / IEC 27001:2022 information security and cyber security in laboratories and laboratories.