Volumetric flasks, DURAN^®, with beaded rim, class A, blue graduation

IN (TD) calibrated. With beaded rim and dated batch identification. Declaration of conformity acc. to DIN 12600. Ring mark and graduation in high contrasting blue enamel. 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.