ITEM NAME:100x New Two Color Saliva Slaver For Urine Pregnancy Test Paper PH 4.5 9.0 FT.After testing, if the human body blood pH value of less than 7.4, urine pH value of less than 5.5, saliva pH value of less than 7 that can be judged as acidic. - human urine PH value around 6, below this value is acidic urine.
