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This is a standard 250ml borosilicate-glass beaker with graduated markings and a moulded pour spout,..

This is a Class A borosilicate glass graduated cylinder, 200 or 250ml capacity, with a hexagonal sta..

This is a 220-250ml borosilicate specific gravity bottle, the larger-capacity member of the same pea..

This is a set of Class B glass volumetric flasks (250ml, 500ml, 1000ml and 2000ml) with ground-glass..