中文摘要：

作者提出一种空气湿度渗透压测定法，适用的浓度范围很宽，但在高浓度范围内目前尚无其他测定方法与之对照。为此，采用Pitzer理论模型计算硫酸铵溶液的渗透压，用双T等效性检验及多重检验校正对理论计算值与本空气湿度法及目前常用的冰点渗透压法测定值进行交叉验证。结果表明：采用Pitzer模型的理论计算值与两种方法的测定值一致。虽然冰点法测定值能以更苛严的标准通过此检验，但空气湿度法是目前唯一适用于高浓度溶液的渗透压测量方法。

英文摘要：

The osmotic pressure of ammonium sulfate solutions has been measured by the well-established freezing point osmometry in dilute solutions and we recently reported air humidity osmometry in a much wider range of concentration. Air humidity osmometry cross-validated the theoretical calculations of osmotic pressure based on the Pitzer model at high concentrations by two one-sided test （TOST） of equivalence with multiple testing corrections, where no other experimental method could serve as a reference for comparison. Although more strict equivalence criteria were established between the measurements of freezing point osmometry and the calculations based on the Pitzer model at low concentration, air humidity osmometry is the only currently available osmometry applicable to high concentration, serves as an economic addition to standard osmometry.