Volumetric flask 25 ml, brown graduated NS 12/21, class A, with polyplug Duran, wide neck, conformity certified

IN (TD) calibrated. With dated batch identification. Declaration of conformity acc. to DIN 12600. NS ground with polystopper. With durable amber stain graduation. According to DIN EN ISO 1042. For those products batch calibration reports, which are free of charge, can be generated and printed on www.hirschmannlab.com. Additional single calibration reports or DAkkS certificates (former DKD calibration reports) are available.