The winter service in Austria is of great importance, from both an economic, personnel and safety standpoint. The first line of winter maintenance means: the maintenance of traffic safety on the oads despite wintry conditions for many road users. The navigability is to ensure preventive care as well as regular use of clearing and gritting vehicles. Since the Austrian road network is a complex combination, made up of 2,185 km of motorways and highways, 33,639 km provincial roads and 78,766 km local roads, this naturally/obviously/defiantly requires large amounts of thawing broadcasting agents. In recent years, on average, 345.000 tons of salt were utilized during winter service in Austria. The aim of this work is to determine the criteria for the thawing and scattering agents in various classified experiments, so that the repeatability and comparability of experiments can be ensured with others, specifically with newer broadcasting agents. To determine the freezing point curves of different brine concentrations (¿¿¿¿¿¿¿¿, ¿¿¿¿¿¿¿¿2 or ¿¿¿¿¿¿¿¿2) , eight plastic bottles with a mixture of brine are filled to the eutectic point provided with a temperature sensor and frozen in a climate chamber. The freezing point is determined as a function of the respective selected brine concentration. The thawing process solid de-icing (¿¿¿¿¿¿¿¿) agents are determined with the help of various grain sizes as a function of exposure time. On previously generated ice sheets, a constant amount of salt is applied, and after the end of each exposure the amount of ice thawed in the climatic chamber is calculated. For the determination of liquid de-icing agents thawing process (¿¿¿¿¿¿¿¿, ¿¿¿¿¿¿¿¿2 oder ¿¿¿¿¿¿¿¿2), the brine concentration, is determined as a function of exposure time. For this purpose, prior to commencement of the ice sheets with a well produced to which the brine is applied in a climate chamber. After treatment, the a is determined by thawed ice. The investigation of freezing profiles of selected de-icing agents showed that sodium chloride (NaCl) for the regular and cost-effective scattering is most suitable, however, it should be complemented at temperatures below -10 ° C by calcium and magnesium chloride. Eignungskriterien für auftauende Streumittel An additional study to the thawing process of NaCl showed that the thawing process as a fixed thawing agent is hardly dependent on the chosen grain class, but just for short exposure times, the fine grain class is 0.125 / 1.0 superior. A last attempt to finally the thawing process liquid de-icing agents showed different recommendations for use of NaCl and CaCl as a function of temperature and contact time.