These PYREX® 5 ml volumetric flasks provide improved lab convenience, broad selection, and precise volume measurement.

• Type I, class A, low expansion borosilicate glass
• Class A accuracy
• Easy to read graduation

These class A volumetric flasks have been manufactured to class A tolerances as established by ASTM E- 694 for volumetric ware, ASTM E-542 for calibration of volumetric ware, and ASTM E-288 for volumetric flasks.

The strength of these flasks has been increased appreciably through machine-blown bodies, to which are sealed heavy-tubing necks tooled for No.8 standard taper glass stoppers. The graduation line is sharp and permanent and large white block letters make the inscription easy to read.