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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 6730.89-2024 |
Iron ore-Determination of thorium content-arsenazo III spectrophotometry {译} 铁矿石-钍含量的测定-偶氮胂Ⅲ分光光度法 |
China National Standards arsenazo |
 English PDF |
| GB/T 16484.4-2009 |
Chemical analysis methods of rare earth chloride and light rare earth carbonate - Part 4: Determination of thorium oxide content - arsenazoⅢ spectrophotometry 氯化稀土、碳酸轻稀土化学分析方法 第4部分：氧化钍量的测定 偶氮胂Ⅲ分光光度法 |
China National Standards arsenazo |
English PDF |
| GB/T 12689.11-2004 |
The 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 |
China National Standards arsenazo |
English PDF |
| GB/T 12690.12-2003 |
Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides--Determination of thorium content--arsenazo III spectrophotometric method and inductively coupled plasma mass spectrum method 稀土金属及其氧化物中非稀土杂质化学分析方法 钍量的测定 偶氮胂III分光光度法和电感耦合等离子体质谱法 |
China National Standards arsenazo |
English PDF |
| GB/T 223.30-1994 |
Methods for chemical analysis of iron，steel and alloy--The arsenazo Ⅲspectrophotometric method for the determination of zirconium content after separation by p-bromomandelic acid 钢铁及合金化学分析方法 对-溴苦杏仁酸沉淀分离-偶氮胂Ⅲ分光光度法测定锆量 |
China National Standards arsenazo |
English PDF |
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