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,...
The “True Blue” A-Clamp is constructed from a glass-filled nylon plastic connected by an aluminum rivet.
These materials are strong yet lightweight, allowing the clamp to reliably maintain occlusion of 1 mm to 8 mm...