Standard specification for weighing and drying apparatus for microchemical analysis 微量化学分析用称重和干燥装置的标准规范
3.
Markham microchemical analysis - apparatus for the determination of elements by other than combustion methods - specification for ammonia distillation apparatus markham 微量化学仪器.第b集:除燃烧法外的元素测定仪器.第2部分:氨蒸馏装置