ASTM Class A 3-Cylinder Set with Nylon Cleaning Brushes, 5-25mL, Blue Graduations, Borosilicate 3.3 Glass

This measuring cylinder set includes three Borosilicate 3.3 glass cylinders in 5 mL, 10 mL, and 25 mL capacities, plus two bristle brushes for cleaning. Each cylinder meets ASTM E1272 Class A tolerance as per ISO/ASTM standards and features blue printed graduations calibrated to contain. All cylinders have solid hexagonal bases with removable plastic protective collars. The smaller brush measures 8.25 inches with a 3-inch bristle section (0.5-inch diameter), suitable for the 5 mL and 10 mL cylinders. The larger brush measures 9 inches with a 3.5-inch bristle section (0.8-inch diameter), suitable for the 25 mL cylinder. Both brushes feature fan-shaped ends and rust-proof stainless steel twist handles. The borosilicate glass is autoclavable with superior chemical durability. Heat tolerances are: Strain Point 515°C, Annealing Point 565°C, and Softening Point 820°C.