Introduction：
　　Huijing brand PH reagent overcomes shortcoming of traditional detect method. It can make operation easy and reduce detect cost.
(1) advantages：high precision, easy to operate, low cost and easy to take.
(2) Application range：used in colorless acid or alkali solution with 4-10 ph values.
(3) Precision：it can detect very weak cushion solution and acid and alkali solution.

Storage：avoid light and airproof in cool place in room temperature.