NMR tubes, diameter 3 and 5 mm, borosilicate glass 3.3, with UV protection These tubes coloured by silver ion diffusion are particularly suitable for handling UV-sensitive substances. The tubes are manufactured from borosilicate glass 3.3 which is conform to USP Type I and ASTM E438, Type I, Class A. They are supplied with a green cap.
Ext. Ø 4,95 mm Tolerance ext. Ø 0 mm Ext. Ø 4,95 mm ± 0.05 Int. Ø 4.2100 mm Int. Ø 4.21 mm Length 178 mm Wall thickness 0,38 mm Material Boro 3.3 |