| 1. | Characterization of sludges - determination of kjeldahl nitrogen
淤泥的特性.氮含量的测定 |
| 2. | Standard specification for laboratory glass kjeldahl flasks
实验室开尔达玻璃烧瓶的标准规范 |
| 3. | Standard test methods for total kjeldahl nitrogen in water
水中氮总数的基耶达尔标准试验方法 |
| 4. | Water quality - determination of kjeldahl nitrogen
水质凯氏氮的测定 |
| 5. | Milk - determination of nitrogen content - kjeldahl method
牛奶.氮含量的测定.基耶达法kjeldahl |
| 6. | Characterization of sludges - determination of kjeldahl nitrogen
污泥特性描述.基尔达斯氮的测定 |
| 7. | Laboratory glassware ; kjeldahl flasks
实验室玻璃仪器.开尔达烧瓶 |
| 8. | Apparatus for microdetermination of nitrogen by kjeldahl method
用基耶达法进行氮气微量测定用仪器 |
| 9. | Laboratory glassware . kjeldahl flasks
实验室玻璃器皿.长颈烧瓶 |
| 10. | Laboratory glassware - kjeldahl flask
实验室玻璃仪器凯氏烧瓶 |
