ISO 805:1976 主要用于制铝的氧化铝.铁含量的测定.1,10-菲罗啉光度法
标准编号:ISO 805:1976
中文名称:主要用于制铝的氧化铝.铁含量的测定.1,10-菲罗啉光度法
英文名称:Aluminium oxide primarily used for the production of aluminium — Determination of iron content — 1,10- Phenanthroline photometric method
发布日期:1976-09
标准范围
适用于铁含量,以Fe2 O3表示,等于或大于0.005%(m/m)。规定了通过氯化羟胺对铁(III)的初步还原。在缓冲溶液(pH值在3.5和4.2之间)中形成铁(II)-1,10-菲罗啉络合物。波长约为510 nm的光度测量。取代ISO建议R 805/1968。
Applicable to Fe contents, expressed as Fe2 O3, equal to or more than 0.005 % (m/m). Specifies the preliminary reduction of iron (III) by means of hydroxylammonium chloride. Formation of the iron(II)-1,10-phenanthroline complex in a buffered (pH value between 3.5 and 4.2). Photometric measurement at a wavelength of about 510 nm. Replaces ISO Recommendation R 805/1968.
标准预览图


