Page 104 - Praxair - Specialty Gases and Equipment Reference Guide

Carbon Dioxide

Balance (M)SDS (M)SDS Regulator Page
Gas Range Recommendations
Air 1 ppm - 50% P-18-0012-A Single Stage PRS40023331-CGA E •245
Argon 1 ppm - 25% P-18-0332 Two Stage PRS40123331-CGA E •244
Helium 1 ppm - 50% P-18-1641 Line PRS40052001-000 E •246
Hydrogen 1 ppm - 20% P-18-0102-A
Nitrogen 0.01 ppm - 50% P-18-0156-C

Balance Concentration CGA Praxair Grades* Cylinder Pressure Contents
Gas Range E N M P C U Style psig ft 3 m 3
Air 0.5 ppm - 50% (1)(2) 590 • • • • • • AS 2000 146 4.10
• • • • • • AQ 2200 84 2.40
• • • • • • A3 2200 32 0.90
• • • • • • K 2000 199 5.64
• • • • • • Q 2000 67 1.90
• • • • • • G 2000 34 0.96
Argon 0.5 ppm - 50% 580 • • • AS 2000 146 4.10
(1)
• • • AQ 2200 84 2.40
• • • A3 2200 32 0.90
• • • K 2000 199 5.64
• • • Q 2000 67 1.90
• • • G 2000 34 0.96
Helium 0.5 ppm - 50% 580 • • • AS 2000 146 4.10
(1)
• • • AQ 2200 84 2.40
• • • A3 2200 32 0.90
• • • K 2000 199 5.64
• • • Q 2000 67 1.90
• • • G 2000 34 0.96
Hydrogen 0.5 ppm - 50% 350 • • • AS 2000 146 4.10
(1)
• • • AQ 2200 84 2.40
• • • A3 2200 32 0.90
• • • K 2000 199 5.64
• • • Q 2000 67 1.90
• • • G 2000 34 0.96
Nitrogen 0.5 ppm - 50% (1)(2) 580 • • • • • • AS 2000 146 4.10
• • • • • • AQ 2200 84 2.40
• • • • • • A3 2200 32 0.90
• • • • • • K 2000 199 5.64
• • • • • • Q 2000 67 1.90
• • • • • • G 2000 34 0.96

(1) Cylinder pressure and contents will vary proportionately at higher concentrations.
(2) 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.) Section C – Mixtures
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•103