Made of borosilicate glass. Available with black phenolic cap with silicone rubber liner (A) or with natural colour PP cap with PTFE liner (B). Autoclavable
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)
