The ultimate objective of gas metrology can be given as identification, method development for the analyses, investigation and application of industrial gases, exhaust emission gases and atmospheric gas components, as well as establishing a traceability chain for gas measurements and providing support for scientific, legal and industrial activities involving gas measurements. Primary gas standards with very low uncertainty values can provide sustainable and traceable gas measurements required in the field of health, environment and safety. In the Gas Metrology Laboratory, primary gas standards are prepared and analyzed in order to establish a traceability chain for gas measurements and to perform related activities for traceable and reliable gas measurements in the country. The laboratory collaborates with related public and private institutions and performs the necessary activities to meet their demands for reliable gas measurements in scientific, legal and industrial areas at the national and international level.