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
835. Type 3 (zero point at the top), total delivery. Calibrated to deliver (TD, Ex). Waiting time 5 s. Marks and inscriptions in ETERNA amber stain.