土壤pH值的测定国际国内方法差异研究

Difference Between International and Domestic Methods in Determining Soil pH

将国际标准化组织于2005年2月15日发布的《土壤质量─pH的测定》(ISO10390:2005)的国际标准方法与国内使用的土壤pH测定方法做对比,研究了不同方法土壤样品制备、悬浊液制备、电极选择、温度和振荡时间等测定条件控制以及测试报告编写几个方面的差异,为分析方法改进作参考。

The International Organization for Standardization issued an international criteria 《Soil Quality - Determination of Soil pH》 （ISO 10390：2005） on Feb. 15, 2005. A comparison was conducted of the international method with the one used in the country to find out differences between the two in preparation of soll samples and soll suspensions, selection of electrodes, control of temperature and duration of shaking, compilation of test report. Findings of the study could be used as reference in improving the method for determining soil pH.