- Heavy Duty Glass Beaker, Glass Beaker Heavy Duty, Laboratory Heavy Duty Beaker
• Heavy duty borosilicate beakers with beaded rim and spout
• Made from high quality 3.3 borosilicate glass
• 5 mm thick, uniform walls provide excellent strength against breakage
• Low form design with white printed graduations
• Low temperature gradient - can withstand high temperatures and thermal shocks
• Superior chemical durability
• Autoclavable at 121°C
• Strain Point -515°C
• Annealing Point 565°C
• Softening Point 820°C
• Calibrated within 5% tolerance