土壤速效钾和缓效钾含量的测定
Determination of exchangeable potassium and non-exchangeable potassium content in soil
2005-01-04
GOST 4568-1995
Калий хлористый. Технические условия
氯化钾 规格
1995-04-26
GB/T 7118-2008
工业氯化钾
Industrial potassium chloride
2008-12-30
NY/T 2540-2014
肥料 钾含量的测定
Fertilizers-Determination of potassium content
2014-03-24
BS 5551-4.3.4-1988
Fertilizers. Chemical analysis. Determination of potassium-Method for determination of potassium content (titrimetric method)
肥料 化学分析 钾的测定 钾含量的测定方法(滴定法)