GB/T 12689.11-2004
ActiveThe methods for chemical analysis of zinc and zinc alloys--The determination of lanthanum and cerium contents--The tri-bromide arsenazo spectrophoto-metric method
锌及锌合金化学分析方法 镧、铈合量的测定 三溴偶氮胂分光光度法
Application Summary AI generated
This standard specifies a spectrophotometric method using tri-bromide arsenazo to determine the combined content of lanthanum and cerium in zinc and zinc alloys. It is applied in the metallurgical industry for quality control and chemical analysis of zinc-based materials, particularly those containing rare earth elements. The method is used in laboratory testing to ensure compliance with material specifications for products like galvanized coatings or zinc alloy castings.
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