SYMPOSIA PAPER Published: 01 January 1993
STP15959S

A Selection and Evaluation Protocol for Alternatives to Halogenated Hydrocarbon Solvents for Oxygen Cleaning Applications

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Components and systems for gaseous or liquid oxygen service must be cleaned to eliminate the presence of reactive contaminants. Halogenated solvents such as 1,1,1 trichloroethane have been commonly used as preferred cleaning agents for oxygen systems; however, due to environmental and safety concerns, suitable alternatives are needed.

A substantial amount of work has been done on alternatives by various groups. However, many of these alternatives have limitations which should be identified via standardized comparative tests to identify potential problem areas. Furthermore, guidance on the use of standard tests is required.

It is believed that there is a need to establish a standard protocol for comparative testing of environmentally acceptable Chlorofluorocarbon (CFC) alternatives. A Task Force within the ASTM G-4 Committee has been addressing this matter since January, 1992.

This paper discusses issues critical to such a protocol. In addition, it presents an interim protocol suitable for dialogue between the developers of alternatives to CFC cleaning agents and users of equipment in oxygen enriched atmospheres.

Author Information

Million, JF
Materials Engineering Laboratory, Praxair, Inc., Tonawanda, NY
McIlroy, K
Materials Engineering Laboratory, Praxair, Inc., Tonawanda, NY
Zawierucha, R
Materials Engineering Laboratory, Praxair, Inc., Tonawanda, NY
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Details
Developed by Committee: G04
Pages: 141–152
DOI: 10.1520/STP15959S
ISBN-EB: 978-0-8031-5236-6
ISBN-13: 978-0-8031-1496-8