PurityPlus® Grade 6.0 Gases by Toll Company: Greater Production, Increased Cost Savings Critical gas customers are adamant about having high-quality Carrier Gases for chromatography and any job requiring the application of analytics. Offering these gases had better be an essential service of any specialty gas producer. Over the past forty years, the detection limitations of most existing technology in addition to ever better analytical processes have quite expectedly made these gases more popular than ever. The gas specifications widely sanctioned in the 1970s could be insufficient for 21st century needs. Meeting or transcending modernized specs makes necessary a steady investment by the gas supplier – in instrumentation and purification equipment, in tutelage to obtain optimal performance from these means, and in constant review, testing, and affirmation of manufacturing and quality processes. In order to keep in front of your needs, we’re always improving our ability to produce and certify the gases you need today … and tomorrow. So what are you purchasing? And what is it you’re measuring? And what’s to be gained by purchasing the highest-purity gas you can afford? Let’s take a look at the PurityPlus Specifications. PurityPlus Helium, UHP, 5.0 Ultra Carrier, 5.5 Chromatographic, 6.0 Minimum Purity 99.999% 99.9995% 99.9999% Oxygen < 2 ppm < 1 ppm < 0.5 ppm Moisture < 2 ppm < 1 ppm < 1 ppm Hydrocarbons <0.5 ppm < 0.5 ppm < 0.2 ppm Nitrogen < 4 ppm < 1 ppm Carbon Monoxide < 0.1 ppm Carbon Dioxide <0.1 ppmWhat’s it all mean? If you’re process measuring with components in percentage ranges, 5.0 gases are usually okay. If you’re measuring impurities in the 10–1,000 ppm range, you’ll achieve a flatter baseline and more exacting measurements using 5.5 gases. And if you’re doing contaminant detection and quantification below 10 ppm, you’d be better off using 6.0. In any event, recognizing standards isn’t all there is to it. There’s also our process]86]. Are your cylinders pre-treated to avoid later contamination from sidewall corrosion and degassing? Ours are. Are the instruments used to verify these specifications regularly calibrated using traceable standards? Ours are. And can this calibration be documented? Ours can. If you’re a Minneapolis user of high-purity gases, PurityPlus® by Toll Company should be your Number One choice. We’ve made the investment in tools and people. We actively take part in a broad round-robin program to validate our capabilities. We regularly audit ourselves by benchmarking against other producers and hiring a third-party auditing group to analyze us. And, unlike a good share of our competitors, we can provide for your gas requirements locally – doing everything from fielding whatever questions you have, to creating and delivering your gases and equipment, to eliminating any misunderstanding or error no matter how improbable. Compare what’s available. Then get hold of Toll Company today at 612-581-9889 or contact us online. We’re ready to serve all of your specialty gas needs from right here in Minneapolis!