Page 125 - Praxair - Specialty Gases and Equipment Reference Guide
P. 125

Nitrogen






            Balance             (M)SDS               (M)SDS              Regulator                        Page
            Gas                 Range                                    Recommendations
            Argon               1 ppm - 49.9%        P-18-0335-C         Single Stage   PRS40023331-CGA   E •245
                                           (1)
            Helium              1 ppm - 49.9%        P-18-0127-B         Two Stage     PRS40123331-CGA    E •244
                                           (1)
            Hydrogen            1 ppm - 49.9%        P-18-0432           Line          PRS40052001-000    E •246
                                           (1)
            Oxygen              0.1 ppm - 49.9%      P-18-0434-A
                                            (1)

              Balance     Concentration     CGA    Praxair Grades*         Cylinder   Pressure   Contents
              Gas         Range                    E  N   M   P  C   U  Style     psig       ft 3    m 3
              Argon       1 ppm - 99.9%     580               •   •   •   AS      2000       153     4.33
                                                              •   •   •   K       2000       226     6.40
                                                              •   •   •   Q       2000         75    2.12
                                                              •   •   •   G       2000         38    1.08
              Helium      1 ppm - 99.9%     580               •   •   •   AS      2000       135     3.82
                                                              •   •   •   K       2000       199     5.64
                                                              •   •   •   Q       2000         67    1.90
                                                              •   •   •   G       2000         34    0.96
              Hydrogen    1 ppm - 99.9%     350               •   •   •   AS      2000       133     3.77
                                                              •   •   •   K       2000       196     5.55
                                                              •   •   •   Q       2000         65    1.84
                                                              •   •   •   G       2000         33    0.93
              Oxygen      1 ppm - 99.9%     296               •   •   •   AS      2000       153     4.33
                                                              •   •   •   K       2000       226     2.52
                                                              •   •   •   Q       2000         76    2.15
                                                              •   •   •   G       2000         38    1.08
              (1)   For concentrations above 50%, the (M)SDS for the inverse mixture applies (i.e. Oxygen in Nitrogen).
              *  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)























     Section C – Mixtures




           C•124                              1-877-PRAXAIR                     www.praxairdirect.com
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