標準號：ISO 2164-1975
中文標準名稱：豆科作物 苷氫氰酸的測定
英文標準名稱：Pulses; Determination of glycosidic hydrocyanic acid
標準類型：B20
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：B20
國際標準分類號：67.060
適用范圍：The method consists in steam distillation of the acid liberated after enzymatic or acid hydrolysis of the glycosides, followed by determination of the quantity of acid obtained, either by direct titration in the distillate with silver nitrate solution in an ammoniacal medium and in the presence of potassium iodide, or by back titration of an excess of silver nitrate solution with ammonium thiocyanate solution, in a suffiently diluted nitric acid medium and in the presence of iron(III) ions. An annex describes a determination by the mercurimetric method.