burettes, automatic burettes and bulb pipettes are supplied with a batch number and an accompanying batch certificate in the original packaging. On request, they are also available with an individual certificate, USP individual certificate or DAkkS calibration certificate.
ETERNA, class AS, DE-M marking. AR-Glas®
. DIN EN ISO 648. Calibrated to deliver (TD, »Ex«). Waiting time 5 s. Ring mark and inscriptions in amber stain.