HELPING THE OTHERS REALIZE THE ADVANTAGES OF PH VALUE

使用pH试纸，pH试纸有广泛试纸和精密试纸，用玻棒沾一点待测溶液到试纸上，然后根据试纸颜色对照比色卡也可以得到溶液的pH。上方表格就相当于比色卡。A water supply ‘s pH value is often a operate of its acidity, or alkalinity. The pH stage is a operate of the hydrogen atom activity, as the