ISIS Three Band pH Test Paper Refill 1box(3rolls)

Image on this page only as Representative Image, Please check the specifications of each model number for details.

These are test papers with high accuracy which separate 3 different indicators and are easy to read.
Intermediate value within graduation interval can be guessed easily as well.
L type comes with canal boundary zone among 3 bands, and colorimetric analysis and measuring in high alkali range have advantage.