The problems of representativity of water sample, constant weight of filter paper and absorption of salt in the analysis of suspension of metallurgical waste water are discussed.
论述绍了在冶金废水悬浮物分析中水样的代表性、滤纸的恒重及对盐分的吸附等需要注意的一些问题。
Suspension quantitative germicidal test was used to observe the disinfection property of double-chain quaternary ammonium salt disinfectant.
采用悬液定量杀菌试验对复合季铵盐消毒剂的消毒性能进行了观察。
Suspension quantitative germicidal test was used to observe the disinfection property of double-chain quaternary ammonium salt disinfectant.
采用悬液定量杀菌试验对复合季铵盐消毒剂的消毒性能进行了观察。
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