Supplied with a Certificate of Graduation Accuracy

·         Graduation ring is blasted on the neck

·         Letters “TC” on the flask indicate to contain

·         Supplied with a polyethylene snap cap and a marking spot

·         Flasks have been carefully selected to meet the requirements for accuracy, appearance, glass quality, calibration line, and inscriptions of former NBS Circular 602

·         Designed from ASTM Specification E288, Class A serialized requirements

·         Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements