摘要
目的改进国家标准GB14591-2006水不溶物含量测定方法。方法采用先测净水剂中含量较高的水可溶物含量,再用100%减去可溶物含量,既得到水不溶物含量。结果将本方法检测的数据与国家标准方法(GB14951-2006)检测数据比较,差异无统计学意义(P>0.05)。RSD为0.28%~2.85%。结论改进后的方法符合实验要求,步骤简便、操作性强,结果准确可靠。
Objective To improve the national standards method ( GB 14591-2006) to determine water insoluble substance content.Methods The content of water soluble substance was measured firstly in the water purification ,then the content of water insoluble substance was calculated by formula . Results Data from the national standards method (GB 14951-2006) and the improvement method didn’t show significant difference (P〉0.05),RSD was 0.28%-2.85%. Conclusion The improved method matches the method precision requirement. It is easy to operate,accurate and dependable.
出处
《中国卫生工程学》
CAS
2009年第4期236-237,共2页
Chinese Journal of Public Health Engineering
关键词
净水剂
水可溶物
水不溶物
Water purification agent
Water soluble substance
Water insoluble substance