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Borosilicate glassware has a very low coefficient of thermal expansion (≈3 × 10−6 K−1 at 20 °C), making them more resistant to thermal shock breakage than common soda-lime glass.  A typical rated maximum temperature differential of about 165°C (300 °F) allows usage for handling of many hot and cold liquids.  

Globe Scientific laboratory 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. and meets the applicable ASTM standards for volume, shape, dimensions, graduation markings, and calibration. The ASTM standard is clearly marked on each product for confirmation that the laboratory glassware will meet the application requirements.