PurityPlus is Producing 6.0 Grade Products 10/09/2017PurityPlus is producing 6.0 Grade Products. Are you in need of the purest grades of gases? PurityPlus Specialty Gases is currently offering Argon Grade 6.0, Helium Grade 6.0, and Nitrogen 6.0. We acknowledge certain laboratory testing requires gases with less than 1ppm total impurities. We also know that you need to rely on a reputable supplier that provides excellent customer service. PurityPlus is a nationwide partnership of select independent specialty gas companies that guarantees certified-quality product and unparalleled local service. We are there when you need it. Gas specifications can be found in our catalog. Contact PurityPlus, or find your local gas supplier, for all of your specialty gas and specialty gas equipment needs.