A wide range of industrial fields requires stable and reliable frequency or timing signals than can be provided only by atomic frequency standards. It is well known that optical clocks are the most accurate and stable clocks available nowadays. However, their performances go well beyond what is required for most industrial applications. Optical clocks are still at the level of laboratory prototypes in terms of reliability, size, cost and power consumption. The overall aim of the project is to develop and produce 3 types of commercial viable microwave clocks which match the performance and compactness needed for upcoming demanding industrial and technical applications. Testing of the clocks in different operating situations is necessary. The tests concern the behaviour of the clocks or clocks components in more demanding environments. Selected clock components will undergo two kinds of tests simulating demanding environments: mechanical and electromagnetic compatibility (EMC) and interference (EMI) tests. The mechanical and electromagnetic tests of optical clocks will be performed by National Metrology Institute of Turkey (TÜBİTAK UME). The temperature and humidity tests of optical clocks will be carried out in the temperature-humidity test chamber. The EMC and EMI tests will be done in a semi-anechoic and screen chamber rooms. In addition to this responsibility of the TÜBİTAK UME contains scientific research in work packages.