Hydrion Insta-Chek pH Papers provide:
A direct reading pH paper with the widest range available in a single paper
A simple, single color match for all pH values
Distinct and easily matched color separations
Accurate,...
Smooth operation for exceptionally sensitive drop-wise titrations
Avoids the risk of spills from poured transfers
Eliminates meniscus reading errors
Switch automatically between filling and titrating
Meets tolerances...