Page 126 - Praxair - Specialty Gases and Equipment Solutions
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Nitrogen Dioxide






            Balance             (M)SDS               (M)SDS              Regulator                        Page
            Gas                 Range                                    Recommendations
            Air                 0.1 ppm - 0.5%       P-18-0067           Single Stage   PRS40223331-CGA   E •248
            Nitrogen            0.1 ppm - 0.5975%    P-18-0370-B         Two Stage     PRS40323331-CGA    E •247
                                0.5876 - 1%          P-18-0871-A         Line          PRS40252001-CGA    E •249


              Balance     Concentration     CGA    Praxair Grades*         Cylinder   Pressure   Contents
              Gas         Range                    E  N   M   P  C   U  Style     psig       ft 3    m 3
              Air         2 ppm - 1%        660    •   •   •   •   •   •   AS     2000       144     4.08
                                   (1)
                                                   •   •   •   •   •   •   AQ     2200         83    2.35
                                                   •   •   •   •   •   •   A3     2200         31    0.88
              Nitrogen    2 ppm - 1%        660               •   •   •   AS      2000       142     4.02
                                                              •   •   •   AQ      2200         82    2.32
                                                              •   •   •   A3      2200         31    0.88
              (1)   Available concentrations for NIST traceable mixtures to be determined by available reference materials.
              *  Key for Praxair Mixture Grades (Refer to page C •92 for complete specification details.)
                EPA (E), Primary Master (PM), Certified Master (CM), Primary Standard (P),
                Certified Standard (C), Non-Certified Standard (U)


















































            1-877-PRAXAIR                     www.praxairdirect.com                                        C•125    Section C – Mixtures
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