標準號：ISO 6685-1982
中文標準名稱：工業用化學品 測定鐵含量的一般方法 1,10-菲羅啉分光光度法
英文標準名稱：Chemical products for industrial use; General method for determination of iron content; 1,10-Phenanthroline spectrophotometric method
標準類型：G04;N33
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：G04;N33
國際標準分類號：71.040.50
適用范圍：All the iron(III) present in the test solution is reduced to iron(II) with ascorbic acid. At a pH between 2 and 9 1,10-phenanthroline is added. the measurement of the absorbance of the orange-red complex formed is carried out at the wavelength of maximum absorption (510 nm). The method is applicable to test solutions from which an aliquot portion can be taken containing between 10 and 500 g of Fe in a volume of not more than 60 m. Details of certain interferences and means by which they can be overcome are given in an annex.