Page 118 - Praxair - Specialty Gases and Equipment Reference Guide

Isobutane

Balance (M)SDS (M)SDS Regulator Page
Gas Range Recommendations
Air 1 - 6000 ppm P-18-0089 Single Stage PRS40023331-CGA E •245
Helium 1 ppm - 1% P-18-0096 Two Stage PRS40123331-CGA E •244
Nitrogen 1.9 - 10% P-18-0114-A Line PRS40052001-000 E •246

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 - 5000 ppm 590 • • • AS 2000 146 4.13
(1)
• • • K 2000 215 6.09
L.E.L. 1.8% • • • Q 2000 72 2.04
Helium 1 ppm - 99.9% 350 • • • AS 2000 135 3.82
(1)
• • • K 2000 199 5.64
• • • Q 2000 67 1.90
Nitrogen 1 ppm - 99.9% 350 • • • AS 2000 135 3.82
(1)
• • • K 2000 199 5.64
• • • Q 2000 67 1.90
(1) Cylinder pressure and contents will vary proportionately at higher concentrations.
* 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•117 Section C – Mixtures