NMR Tubes

Description The range includes : Burettes, Straight Bore Stopcock, Accuracy as per Class ‘A’ , with Individual Certificate IS 1997 : 2008 of Performance, Made from Heat Resistant, Low Expansion Borosilicate Glass, RIVIERA Burettes, Rotaflow Needle Valve Stopcock, Accuracy as per Class ‘A’, with Individual Certificate IS 1997 : 2008 of Performance, Made from Heat Resistant, Low Expansion Borosilicate Glass, RIVIERA Burettes, Straight Bore Stopcock, Accuracy as per Class ‘B’, Made from Heat Resistant, Low Expansion Borosilicate Glass, RIVIERA Burettes, Rotaflow Needle Valve Stopcock, Accuracy as per Class ‘B’, Made from Heat Resistant, Low Expansion Borosilicate Glass, RIVIERA

Description Suitable for vacuum filteration of liquids for analysis, especially suitable for HPLC set up, both solvent and mobile phases. Very good compatibility with chemicals including very aggressive solvents. All parts made of borosilicate glass. Portable, Oil-Free Vacuum Pump, RIVOTEK Suitable for HPLC & Filteration applications. Supplied complete with Vacuum Gauge & Regulator Glass Filter Holder – 47 mm Glass Filter Holder 25 mm Excellent suitability for microbiological application.

Description The range includes : Burettes, Schellbach, Main Point Ring Graduation, Straight Stopcock with Glasskey, Blue Graduation, Class ‘AS’ as per DIN EN ISO 385 Conformity Certified, with Batch Certificate, Calibrated at 3 Graduation levels for accuracy and tolerance, EM-TECHCOLOR Brand Burettes, Schellbach, Main Point Ring Graduation, Straight Valve Stopcock with PTFE Spindle, Blue Graduation, Class ‘AS’ as per DIN EN ISO 385 Conformity Certified, with Batch Certificate, Calibrated at 3 Graduation levels for accuracy and tolerance, EM-TECHCOLOR Brand Burettes, Automatic, Mounted on Reservoir, Schellbach, Main Point Ring Graduation, Straight Stopcock with Glasskey, Blue Graduation, Class ‘AS’, Conformity Certified with Batch Certificate, Calibrated at 3 Graduation levels for accuracy and tolerance, Made from EM-TECHCOLOR Brand Burette, Automatic, Mounted on Reservoir, Schellbach, Main Point Ring Graduation, Straight Valve Stopcock with PTFE Spindle, Blue Graduation, Class ‘AS’, Conformity Certified with Batch Certificate, Calibrated at 3 Graduation levels for accuracy and tolerance, Made from EM-TECHCOLOR Brand

Description Vitreous Silica is the glassing modification of silcon dioxide with a purity of 99.9% in the transparent form and is called fused silica. All our silica ware products are made out of fused silica. Fused silica is completely unaffected by acids such as sulpuric, nitric and hydrochloric, however, it can be affected by hdrofluric acid and at high temperatures also by phosphoric acid. Hot alkalies and certain metallic oxides also react on fused silica. Fused silica is boron free They are of very low expansion and hence have excellent dimensional stability and thermal shock resistance Technical Specifications: - Electrical resistivity - (at 350°C) 7 x 107 ohm cm - Average co-efficient of expansion - 5.5 x 10-7 / °C - Softening point - 1685° C - Annealing point - 1200° C - Operating temperature (continuous) - 1050° C - Operating temperature (intermittent) - 1350° C Working temperature - 1950° C Strain point - 1120° C