PurityPlus® Grade 6.0 Gases by Fresno Oxygen & Welding Supplies/Barnes Welding Supply: More Production, Improved Economics

Critical gas customers must have high-quality Carrier Gases for chromatography and any application involving analytics. Providing these gases should be foremost among the skill sets of any specialty gas producer. For better than forty years now, the detection limits of conventional technology coupled with ever-improving analytical methods have rightly put more demand on these gases. The gas specifications that addressed 1970s needs well enough may be inadequate as this century moves forward. Meeting or transcending updated specs requires a steady investment by the gas supplier – in instrumentation and purification equipment, in education to get the very best performance from these methods, and in constant review, testing, and corroboration of manufacturing and quality checks. In order to continue anticipating your needs, we’re increasing our ability to manufacture and certify the gases you depend on in the 21st century.

What, then, are you buying? What is it you’re measuring? And what reward is there in seeking out the highest-purity gas you can afford? Let’s do a quick study of 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 do these specs reveal? If you’re measuring processes with components in percentage ranges, 5.0 gases are usually sufficient. If you’re measuring impurities in the 10–1,000 ppm range, you’ll get a flatter baseline and more precise measurements using 5.5 gases. And if you’re engaged in 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 confirm these specifications continually calibrated using traceable standards? Ours are. And can this calibration be documented? Ours can.
 
If you’re a Fresno user of high-purity gases, PurityPlus® by Fresno Oxygen & Welding Supplies/Barnes Welding Supply should be your first choice. We’ve invested heavily in tools and people. We actively take part in an extensive round-robin program to check out our capabilities. We continually audit ourselves by benchmarking against other producers and calling on a third-party auditing group to analyze us. And, unlike many of our competitors, we can provide for your gas requirements locally – doing everything from fielding whatever questions you have, to producing and delivering your gases and equipment, to solving any misunderstanding or error that may crop up, however unexpectedly. Spend some time comparing all available sources. Then get hold of Fresno Oxygen & Welding Supplies/Barnes Welding Supply today at 559-341-4456 or contact us online. We can handle all of your specialty gas needs from right here in Fresno!