5 mm Heavy Wall Precision NMR Tube, 7" (500 MHz) - pack of 5

Wilmad-LabGlass NMR Precision Tubes are manufactured from borosilicate glass that meets the requirement of Type 1 Class A glass from ASTM E438. Precision tubes have 3 fold less paramagnetic contamination comparing to Economy tubes, and can be operated safely at temperature up to 230 ˚C, and within a temperature step of 120 ˚C. Precision tubes are rated as hydrolytic class 1, which states that the inner surface is resistant to strong acid and base at ambient temperature.

Product Specifications:
• Length: 7 inches
• Thickness: 1.4 mm
• O.D.: 4.9635 ± 0.0065 mm
• I.D.: 2.160 ± 0.013 mm
• Concentricity: 51 µm
• Camber: 51 µm