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在用置换法处理水样时,必須先求出K置,然后再据以計算泥沙重量。由新版水文测站暫行規范275頁知K=γ_3/γ_3-γ。其中γ_3—泥沙么重(克/立方公分),γ—水的么重(克/立方公分)。并規定泥沙么重在尚未测定前,可以在2.60～2.70之間选用,γ值系根据当时比重瓶中的渾水温度,自規范274頁附表中查得,根据附表知:当水溫在0℃～40℃间,γ值变动的最大差值为0.0067左右;如设γ_3=2.60,計算K值在1.625～1.617之間;如设γ_3=2.70則K值在
In the replacement method for water samples, you must first find K set, and then according to calculate sediment weight. K + γ_3 / γ_3-γ is known from the interim norm of the new hydrographic station on page 275. However, Which γ_3-sediment weight (g / cm3), γ-water weight (g / cm3). And provides heavy sediment weight has not been measured before, you can choose between 2.60 ~ 2.70, gamma value is based on the proportion of the moment the proportion of the muddy water temperature bottle from the norms of 274 pages in the table to find, according to the schedule that: when the water If the temperature is between 0 ° C and 40 ° C, the maximum difference between the values of γ will be about 0.0067; if γ_3 = 2.60, the values of K will be between 1.625 and 1.617; if γ_3 = 2.70, the values of K will be between