Aqueous Ca-Chloride solution 25 mmol/l used for the determination of the activated partial thromboplastin time with Dapttin and coagulation factors VIII, IX, XI and XII. For manual use: 250 tests (100 μl/test). For automated or semi-automated use, the number of tests depends on the application protocol of the analyzer. Content: 1 x 25 ml. CE/IVD Marked.