Page 105 - Praxair - Specialty Gases and Equipment Reference Guide

Carbon Monoxide

(1)
Balance (M)SDS (M)SDS Regulator Page
Gases Range Recommendations
Air 1 ppm - 10% P-18-0016-C Single Stage PRS40023331-CGA E •245
Argon 0.5 ppm - 11.1% P-18-0073-A Two Stage PRS40123331-CGA E •244
11.2 - 50% P-18-0454 Line PRS40052001-000 E •246
Helium 1 ppb - 14.3% P-18-0074-B
14.31 - 50% P-18-0455-A
Hydrogen 1 ppm - 50% P-18-0933
Nitrogen 0.5 ppm - 20% P-18-0160-B
20.1 - 50% P-18-0456

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% 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
Helium 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
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) 350 • • • • • • 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.)
EPA (E), Primary Master (PM), Certified Master (CM), Primary Standard (P),
Section C – Mixtures
Certified Standard (C), Non-Certified Standard (U)

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