Borosilicate glass, class A, ASTM Type 1.

• 100% inspection with multiple NIST traceable gauges and optical surface defect checks
• To maximise SNR, PRECISION NMR tubes have minimal paramagnetic impurities that would impact shimming
• Tight ID and OD tolerance as small as 0,0065 mm accommodates inserts
• Caps are not recommended for use with samples dissolved in chloroform-d or acetone-d6

NMR PRECISION tubes are manufactured from borosilicate glass that meets the requirement of Type 1 class A glass from ASTM E438. PRECISION tube has 3-fold less paramagnetic contamination compared to the ECONOMY tube, and can be operated safely at temperatures 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 acids and bases at ambient temperatures. These tubes are ideal for experiments requiring critical shimming quality (high/ultra-high field, non spinning, multi-dimensional, multi-nuclei, DNP experiments and studies involving biological samples).