Globe Glass™ volumetric flasks are calibrated to meet ASTM tolerance specifications for precise measurement in solution preparation and dilution. A diamond etched graduation line indicates the calibrated capacity of each measuring flask. Wide mouth options are available for easier filling and mixing. Globe Glass™ volumetric flasks are offered in sizes ranging from 1 to 2000 ml, and with Class A or Class B calibration tolerances. Class A volumetric flasks include a batch calibration certificate.

• Calibrated TC; 'To Contain'
• Class A calibration tolerance for highest accuracy and the most critical laboratory work
• Class B calibration tolerance for general laboratory work
• Supplied with glass pennyhead stoppers
• Diamond etched graduation marks
• High resistance to chemicals
• Durable white enamel printing

Globe Glass™ lab glassware is made exclusively from ASTM E438, Type I, Class A, 3.3 borosilicate glass for excellent resistance to thermal shock and high chemical resistance to most acids, alkalis, and solvents. Globe Glass™ lab glassware meets applicable ASTM standards for volume, shape, dimensions, graduation markings, and calibration. These ASTM standards are clearly marked for easy confirmation that each piece of laboratory glassware will meet the needs of laboratory professionals. Computer controlled, automated production lines ensure that this laboratory glassware has consistent wall thickness, flat bottoms free of striations, and precise forming of rims and spouts.

Permanent white enamel markings are ASTM compliant and easy to read. Dual metric scale graduations are included on most items for easy reference while filling or dispensing. A large, convenient marking area is provided for coding or identification. Globe Glass™ laboratory glassware is manufactured under stringent quality controls. Manufacturing facilities are ISO 9001 certified and in-house calibration is performed in an ISO 17025 certified laboratory.