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在进行水的卫生监测,评价水体污染与白净程度时,分析项目中需要测定溶解氧含量(mg/L)。水中氧的溶解度与空气中氧的分压、大气压力和水温都有密切关系;因而在采水样同时应测水温,分析结果计算中除计算溶解氧含量(mg/L)外,应计算出某气压下某水温时的溶解氧饱和率(％)更有实际意义。
In carrying out sanitary monitoring of water and assessing water pollution and whiteness, dissolved oxygen content (mg / L) needs to be determined in the analysis project. The solubility of oxygen in water and the oxygen partial pressure in the air, atmospheric pressure and water temperature are closely related; thus water samples should be measured at the same time, the calculation of the results of the analysis in addition to the calculation of dissolved oxygen content (mg / L) should be calculated A pressure of a water temperature dissolved oxygen saturation rate (%) more practical significance.