Volumetric flasks, DURAN® amber glass, class A, white graduation, with amber glass stopper IN (TD) calibrated. With dated batch identification. Declaration of conformity acc. to DIN 12600. With hollow amber glass stopper. Ring mark and graduation in white enamel. According to DIN EN ISO 1042. Batch calibration reports are available free of charge. Additional single calibration reports or DAkkS certificates (former DKD calibration reports) are available.
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