Page 17 - Medical Gases and Equipment Catalog

Medical Gases and Equipment Catalog

Medical Gas Mixtures

Praxair’s Gas Mixtures
Praxair has been serving the healthcare industry for over 50
years.State of art cylinder filling facilities and thorough quality
assurance programs ensure the preparation of high quality gases
and high accuracy mixtures for research, diagnostics, calibra-
tion and inhalation therapy applications The products classified
by Food and Drug Administration (FDA-USA) as drug or devices
are produced in accordance with current Good Manufacturing
Practices (GMP). Praxair facilities are audited both internally and
by the FDA.

Praxair’s medical gas mixtures are labeled to clearly identify the
gas components The cylinder contents should be verified before
use by carefully reading the label. Adapters must never be used
to connect to a medical gas cylinder.

Mixture Product Summary Components for Medical Mixtures
The following mixture product summary represents the most • Nitrogen N.F. • Acetylene
common medical mixtures for use within the healthcare in-
dustry. Praxair can accommodate most customer requests and • Carbon Dioxide U.S.P. • Carbon Monoxide
specialized needs. Typical cylinder styles available are K and
ME. Contact your Praxair representative for additional cylinder • Helium U.S.P. • Hydrogen
options available in your area.
Safe, Accurate, Consistent, Reliable... Every Time • Nitrous Oxide U.S.P. • Methane
Our sophisticated mixture software provides the very latest in
mixture technology for our customers. • Oxygen U.S.P. • Neon

Blending Systems
Praxair prepares mixtures using high precision Gravimetric Balances or Volumetric Manifolds. All balances, gauges and process
instruments undergo specific periodic maintenance and calibration in accordance with Praxair’s proprietary process which conforms
to FDA and current Good Manufacturing Practices.

Documentation: The following documents are available Upon Request:
• Certificate of Compliance (COC): A written guarantee that a product meets or exceeds the defined specifications.
• Certificate of Analysis (COA): A document that reports the actual analytical test results for pure products or mixtures. Either single

cylinder or batch analysis certification is available, and must be specified at the time of request.

Grade Specifications and Tolerances:
• Certified Standards: These mixtures are prepared by either gravimetric or volumetric (partial pressure) methods. These standards

are analyzed against Praxair Primary Laboratory Standards (PPLS).
• Non-Certified Standards: These mixtures are prepared by the same methods and the same care used for Certified Standard

Grade. Analyses are not reported.
• Primary Standard: High accuracy mixtures prepared gravimetrically on an electronic high precision balance. These mixtures are

analyzed against Praxair Primary Laboratory Standards (PPLS) and named to a gravimetrically generated concentration.

Mixture Component Certified and Non Certified Primary Standards
Concentration Range Standards Tolerances Tolerances
100 ppm ­– 999 ppm +/- 10% (relative)
+/- 5% (relative)
0.1% – 50% +/- 5% (relative)
+/- 2% (relative)

Praxair, the Flowing Airstream design, Medipure and Grab ’n Go are trademarks or registered trademarks of Praxair Technology, Inc. in the United States and/or other countries.
Other trademarks used herein are property of their respective owners. The information contained herein is offered for use by technically qualified personnel at their discretion
and risk without warranty of any kind. © Copyright 2014, Praxair Technology, Inc. All rights reserved. Praxair Inc., Danbury, CT 06810-5113