BRAND^® volumetric flask BLAUBRAND^® class A DE-M marking

BRAND^® volumetric flask BLAUBRAND^® class A DE-M marking, capacity 20 mL, neck joint: ST/NS 12/21, polypropylene stopper

BRAND^® volumetric flask BLAUBRAND^® class A DE-M marking, capacity 10 mL, joint: 7/16, polypropylene stopper

BRAND^® volumetric flask BLAUBRAND^® class A DE-M marking, capacity 20 mL, neck joint: ST/NS 12/21, glass stopper