摘要
根据国家标准"水质-钙和镁总量的测定-EDTA滴定法(GB7477-87)"测定水样的总硬度,当水样总硬度超过3.6mmol/L时需要稀释,记录稀释因子F,采用稀释因子F进行修正计算。提出了稀释后总硬度计算的数学公式,实验验证表明本文提出的计算公式是可行的。
In the determination of the total hardness of water samples, according to the national standard method for determination of total calcium and magnesium by EDTA titration, water samples need to be diluted when the total hardness exceeded 3.6mmol/L, and the dilution factor F needs to be recorded and used for correction calculation. This article proposed the mathematical formula of total hardness after dilution, and the experiment results showed that this formula was practical.
出处
《四川环境》
2015年第1期71-73,共3页
Sichuan Environment
关键词
总硬度
稀释
计算公式
水样
Total hardness
dilution
calculation formula
water sample
