| 摘要 |
<p>To determine the oxidisable substance content of aqueous liquids, a sample chamber (1) is filled with the liquid and emptied again, a small quantity of the sample remaining on a heating element (10) projecting into the sample chamber (1). With the sample chamber closed, the heating element is briefly heated, whereupon the adhering quantity of sample evaporates and the oxidisable substances are burnt. The pressure or moisture increase thereby occurring is used to determine the quantity of the sample. The quantity of exhaust gas produced by combustion is found by infra-red measurement and the oxidisable substance content, especially carbon or nitrogen, is found from both values (quantity of sample, and quantity of exhaust gas).</p> |
