Engine/Measuring tool/651390 PH TEST PAPER 0-14

中文品名：PH值试纸，0-14

For measuring acidity and alkalinity (hydrogen ion concentration) based on a scale of 0 to 14 where 7 represents the value for pure water at 25oC or neutrality.  Values less than 7 represent increasing hydrogen-ion concentration or increasing acidity, and a value greater than 7 represents decreasing hydrogen-ion concentration or increasing alkalinity.

用于测量酸度和碱度(氢离子浓度)，范围从0到14，其中7表示25摄氏度或中性时纯水的数值。小于7的值表示氢离子浓度增加或酸度增加，大于7的值表示氢离子浓度降低或碱度增加。