UV-absorbing, highly transparent. For storage of light-sensitive substances. With ring mark individually calibrated to Iná. Class A tolerances acc. to DIN EN ISO 1042. With printed lot number and batch certificate. Thermal stress up to 121 °C (autoclaving) does not permanently exceed the tolerance limit. To preserve markings, cleaning at no higher than 60 °C is recommended. Also available with DAkkS calibration certificate or individual quality certificate.