Batch certified Class A volumetric flask, calibrated to contain. Made from durable borosilicate glass, features a machine blown body with a heavy beaded tubing neck and fitted with a plastic snap cap. Flasks feature a sharp graduation line and large white block letters. Meets Class A specifications per ASTM E288.

Capacity (ml)	Tolerance (±ml)	Plastic Cap #
50	0.05	3
100	0.08	4
200	0.10	5
250	0.12	5
500	0.20	5
1L	0.30	6
2L	0.50	8