Hebei Provincial Standard of the People's Republic of China
Latest
DB13/T 844-2007
Scope
This standard was proposed by the Hebei Provincial Department of Agriculture. This standard was drafted by: Hebei Soil and Fertilizer Station. The main drafters of this standard: Xie Hong, Lu Yinghua, Duan Xiaoyan, Yang Ruirang, Liu Xiaoli, Zhao Li, Zhang Xiaofeng. This standard specifies the methods, principles, steps and result calculations for soil available potassium determination. This standard is suitable for determining the available potassium content of various types of soil in the province.
DB13/T 844-2007 Referenced Document
GB/T 6682 Water for analytical laboratory use.Specification and test methods*, 2008-05-15 Update