pH Test Paper, pH Range 1-12, 15' Roll
Product Code #PH112R
Based on well-known spectral colour changes and is sharp and clear throughout the range. Narrow strip (5/32 inches) uses micro quantities of liquid on special wet strength paper that will not tear. Each roll is 15 feet long.
pH Range 1-12. Sharp colour change for each pH unit 1-12.
Supplied with colour chart.