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| Position: Chinese Standard in English/GB/T 12690.12-2003 |
| GB/T 12690.12-2003 Neodymium and samarium-Determination of oxygen content-Impulse-infrared absorption method (English Version) | |||
| Standard No.: | GB/T 12690.12-2003 | Status: | superseded |
| Language: | English | File Format: | |
| Word Count: | 4500 words | Price(USD): | 130.00 remind me the price change |
| Implemented on: | 2004-6-1 | Delivery: | via email in 1~3 business day |
| Standard No.: | GB/T 12690.12-2003 |
| English Name: | Neodymium and samarium-Determination of oxygen content-Impulse-infrared absorption method |
| Chinese Name: | 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 |
| Chinese Classification: | H14 Rare metals and their alloys analysis method |
| Professional Classification: | GB National Standard |
| ICS Classification: | 77.120.99 Other non-ferrous metals and their alloys |
| Issued by: | AQSIQ |
| Issued on: | 2004-06-01 |
| Implemented on: | 2004-6-1 |
| Status: | superseded |
| Superseded by: | GB/T 12690.12-2024 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 12: Determination of thorium and uranium contents—Inductively coupled plasma mass spectrum method |
| Superseded on: | 2024-11-1 |
| Abolished on: | 2024-11-01 |
| Superseding: | GB/T 12690.15-1990 Rare-earth metals and their oxides--Determination of thorium content--Arsenazo Ⅲ spectrophotometric method |
| Language: | English |
| File Format: | |
| Word Count: | 4500 words |
| Price(USD): | 130.00 |
| Delivery: | via email in 1~3 business day |