Made of borosilicate glass LBG 3.3. Available with one sealed end (A) and with two open ends (B). Tubes with two open ends (B) can also be used for sample transfer to thin-layer chromatography plates (TLC)
Made of top quality 3.3 borosilicate glass. With screw cap with a PTFE joint. According to DIN 12380, ISO 1773. Clearance prices, valid until end of stock