Volumetric flasks, class A, blue markings

DURAN®, borosilicate glass, with glass stopper, conformity certified (DE-M marking).

• Blue enamelled indelible markings resistant to acids and alkalis
• Certificate of conformity with dated batch identification (available via website: www.hirschmannlab.de)

* In addition to DIN

**Wide neck

 : DIN EN ISO 1042