標準號：ISO 11433-1993
中文標準名稱：鎳合金 鈦含量的測定 二安替吡啉甲烷分子吸收光譜法
英文標準名稱：Nickel alloys; determination of titanium content; diantipyrylmethane molecular absorption spectrometric method
標準類型：H13
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：H13
國際標準分類號：77.120.40
適用范圍：The principle of the method specified is dissolving a test portion in hydrochloric and nitric acids, removing hydrochloric acid and nitric acid by evaporation to fumes in the presence of sulfuric acid, forming the titanium diantipyrylmethane complex, measuring the absorbance of the test solution at a wavelength of 390 nm. The method may be used to determine titanium contents in the range of 0,3 % (m/m) to 5,0 % (m/m). Evidence exists that extension of this method is possible for titanium contents down to 0,05 % (m/m); modifications allow to determine titanium in alloys containing tungsten and/or tantalum.