BRAND™ Volumetric Flasks, BLAUBRAND® ETERNA, Class A, Boro 3.3, DE-M, With PP Stopper, 20 ml, NS 12/21

Volumetric Flasks, BLAUBRAND® ETERNA, Class A, Boro 3.3, DE-M, With PP Stopper, 20 ml, ground joint NS 12/21

Boro 3.3. To DIN EN ISO 1042. Calibrated to contain (TC, In).

All BLAUBRAND® volumetric flasks are delivered with batch number and enclosed one batch certificate per packing unit of the manufacturer. On demand also available with individual certificate or DAkkS calibration certificate. Except the wide neck flasks, the BLAUBRAND® volumetric flasks are also available with USP individual- and USP batch-certificate.

Every glass volumetric instrument is individually calibrated. For measuring instruments with scales, such as graduated pipettes, burettes and graduated cylinders, flexible screen stencils are used. These stencils can be stretched to match the calibration marks accurately, so that the measuring precision is maintained for all intermediate volumes. Computer-controlled systems guarantee the best possible precision for fully automated production processes.

BLAUBRAND® ETERNA:

• Amber diffusion stain BLAUBRAND® ETERNA instruments are printed with an amber diffusion stain. It diffuses into the glass surface and can only be removed by abrasion. It is used for volumetric instruments which are subjected to particularly aggressive cleaning methods.