PurityPlus® Grade 6.0 Gases by A-OX Welding Supply: Increased Production, Lower Costs

Critical gas users insist on high-quality Carrier Gases for chromatography and the entire range of analytical applications. Offering these gases had better be foremost among the skill sets of any specialty gas vendor. For something like forty years or so, both the limited detection abilities of typical technology and ever improving analytical methods have demonstrably made these gases more popular than ever. The gas specifications most accepted in the 1970s might well be insufficient for 21st century needs. Meeting and exceeding updated specs necessitates a continual investment by the gas supplier – in instrumentation and purification equipment, in training to obtain peak performance from these methods, and in continuous review, testing, and auditing of manufacturing and quality programs. In order to stay a step ahead of your needs, we’re upgrading our ability to create and certify the gases you require in the 21st century.

So what are you purchasing? And what is it you’re measuring? And what’s the advantage of going after 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 ppm

What’s it all mean? If you’re process measuring with components in percentage ranges, 5.0 gases are probably good enough. If you’re measuring impurities in the 10–1,000 ppm range, you’ll get a flatter baseline and more exacting measurements using 5.5 gases. And if you’re doing contaminant detection and quantification below 10 ppm, you probably should be using 6.0. But there’s more to account for than just acknowledging standards. There’s our process as well. Are your cylinders pre-treated to eliminate later contamination from sidewall corrosion and degassing? Ours are. Are the instruments used to confirm these specifications frequently calibrated using traceable standards? Ours are. And can this calibration be documented? Ours can.
If you’re a Sioux Falls user of high-purity gases, PurityPlus® by A-OX Welding Supply should be your top choice. We’ve invested heavily in tools and people. We actively take part in an intense round-robin program to check out our capabilities. We regularly audit ourselves by benchmarking against other producers and calling on a third-party auditing group to analyze us. And, unlike a number 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 resolving any misunderstanding or error that may crop up, however unexpectedly. Take the time to compare. Then phone A-OX Welding Supply today at 605-336-1125 or contact us online. We’re fully capable of handling all of your specialty gas needs from right here in Sioux Falls!