The test of fine lime on the ability to react when extinguishing takes place by measuring the temperature increase which occurs during its reaction with water as a function of the reaction time (Quick lime reactivity test “NLK”) Basis of apparatus and measuring method is the standard EN 459-2.
Fort the reaction process you will add 150 +/- 0.5 g quick lime into the Dewar flask in which are already 600 +/- 1g of distilled water at about 20 ° C. Since the content of the Dewar flask must be thoroughly mixed throughout the duration of the experiment, this apparatus is provided with a stirrer (speed 350 +/- 1 / min).
During the reaction, the released heat energy warms up the water. The temperature increase is detected by a high-quality temperature sensor and can be transferred optionally to a special software for evaluation.
Basis of apparatus and measuring system is EN 459-2.