| 1. | Standard methods for chemical analysis of ferroniobium 铌铁合金的化学分析标准方法 |
| 2. | Ferroniobium - technical delivery conditions 铌铁.交货技术条件 |
| 3. | Methods for chemical analysis of ferroniobium 铌铁化学分析方法 |
| 4. | Chemical analysis of ferroniobium . determination of niobium by x ray fluorescence spectrometry 铌铁合金的化学分析. x射线荧光光谱法测定铌 |
| 5. | Methods for chemical analysis of ferroniobium - the gravimetric method for the determination of silicon content 铌铁化学分析方法重量法测定硅量 |
| 6. | Methods for chemical analysis of ferroniobium - the edta volumetric method for the determination of aluminum content 铌铁化学分析方法edta容量法测定铝量 |
| 7. | Methods for chemical analysis of ferroniobium - the combustion gravimetric method for the determination of carbon content 铌铁化学分析方法燃烧重量法测定碳量 |
| 8. | Methods for chemical analysis of ferroniobium - the combustion iodate volumetric method for the determination of sulfur content 铌铁化学分析方法燃烧碘量法测定硫量 |
| 9. | Methods for chemical analysis of ferroniobium - the thiocyanate photometric method for the determination of tungsten content 铌铁化学分析方法硫氰酸盐光度法测定钨量 |
| 10. | Methods for chemical analysis of ferroniobium - the methylene blue photometric method for the determination of sulfur content 铌铁化学分析方法次甲基蓝光度法测定硫量 |