PH indicator paper provides a fast and economical method of pH measurement. For most solutions it is only necessary to dip a short strip of test paper in the solution for a second or two. Then shake off the excess fluid and match the color of the wet test paper with its color chart and read off the values. Individual test strips in a vial.     Feature: 1) 100 strips/vial 2) Wide range paper pH 0-14 for general use 3) Resolution is 1 pH unit 4) PH range: 0-14, 1-14, 1-11, 1-10, 1-12, 4-10, 9-14     5)We can make it according to your requirment     6)Packing: 54*39.5* 28cm(1000 vials/carton)   Special specification and packing could be according to users’ needs