Borosilicate glass.

• Excellent chemical resistance
• High temperature resistance
• Minimal thermal expansion giving relatively high resistance to temperature changes

Water estimators acc. to DIN 12420 (xylol method), capacity: 10:0,1 ml, with round bottom flask 500 ml, ground joint connections: NS29/32, measuring tube with or without stopcock, with Liebig condenser, jacket length: 400 mm.