德国ISOLAB棕色滴定管018.01.025
Manufactured from pre-vacuum calibrated borosilicate 3.3 tubing according to ISO 385 standard. Calibrated according to DIN/ISO Class “AS” standard. Conformity mark (“DE-M”) and batch number printed on the body surface. Batch certificate can be downloaded from website. Supplied with an interchangeable PTFE stopcock with identical keys with does not need “matching the pairs” during cleaning. Inscriptions and nominal values are printed with long lasting enamel color. Schellbach stripe featured with a narrow blue band which is at the center of the larger white band offers easier and accurate observation of the meniscus line.
德国ISOLAB棕色滴定管018.01.025
德国ISOLAB棕色滴定管018.01.025