BKlove pH test paper one pack of 80 strips, each strip is made of premium grade litmus paper intended for universal application Suitable for : urine, saliva, amniotic fluid, drinking water, pool, hot tub, hydroponics, aquariums, food, coffee, potassium hydroxide, and many more Instructions: 1. The solution to be tested in the middle of drip test paper, compared with the standard color version of half a second later, namely, pH value 2. This paper does not apply to buffer solutions and very weak acid-base solution concentrantion lower than 0.01% 3. Test paper can not be directly into the liquid inside 4. This paper need to be stored in the dark and dry place Package: 1 pack Caution: Shelf life 2017-06-23 -- 2020-06-23 100% new, through safety and quality verification
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