Suitable for determining solutions in chemistry. Turns red when the pH is below 4 and blue when the pH is above 9. 4.8 m in a roll.

pH buffer solutions 4.01; 7.00 and 10.00. Ready to use, in sachets, 25ml each.

Pack of 100 strips, each strip is usable throughout, i.e. smaller pieces can be cut.

Min unit 1 pH unit. Roll 4.8m

For determining the acidity or alkalinity of various liquids. 100 strips, range 0-14 pH, step 1pH unit

For determination of bases, turns pink when pH is above 9. Roll 4.8 m.