Documents Here you can find several documents to help guide you through the purchase and use of the many specialty gas products available through PurityPlus. From our Specialty Gas Catalog that details all of our specialty gases and specialty gas equipment available to our Safety Data Sheets to make sure our products are used with utmost safety and caution. We also provide CGA and Cylinder charts for accurate use of our gases and equipment. For more details regarding any of the documents or other information on our website, please feel free to contact us via phone at 877-81P-PLUS or online. To locate the PurityPlus provider in your area, use our Locate Your Nearest Provider link.