ASTM G128-95

Standard Guide for Control of Hazards and Risks in Oxygen Enriched Systems

SCOPE
1.1 This guide covers an overview of the work of ASTM Committee G-4 on Compatibility and Sensitivity of Materials in Oxygen-Enriched Atmospheres. It is a starting point for those asking the question: "Are there any problems associated with my use of oxygen?" and an introduction to the unique concerns that must be addressed in the handling of oxygen. The principal hazard is the prospect of ignition with resultant fire, explosion, or both. This hazard requires design considerations beyond those that apply to all systems, such as adequate strength, corrosion resistance, fatigue resistance, and pressure safety relief.  
1.2 This guide also lists several of the recognized causes of oxygen system fires and describes the methods available to prevent them. Sources of information about the oxygen hazard and its control are listed and summarized. The principal focus is on Guides G63, G88, Practice G93, and Guide G94. Useful documentation from other resources and literature is also cited.  Note 1-This guide is an outgrowth of an earlier (1988) Committee G-4 videotape adjunct  entitled Oxygen Safety and a related paper by Koch  that focused on the recognized ignition source of adiabatic compression-among the more significant but often overlooked causes of oxygen fires. This guide recapitulates and updates material in the videotape and paper.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific precautionary statements see Sections 8 and 11.  Note 2-ASTM takes no position respecting the validity of any evaluation methods asserted in connection with any item mentioned in this guide. Users of this guide are expressly advised that determination of the validity of any such evaluation methods and data and the risk of use of such evaluation methods and data are entirely their own responsibility.

General Information

• Status: Historical
• Publication Date: 31-Dec-1994
• ICS: 13.220.40 - Ignitability and burning behaviour of materials and products
• ICS: 19.040 - Environmental testing
• Technical Committee: G04 - Compatibility and Sensitivity of Materials in Oxygen Enriched Atmospheres
• Drafting Committee: G04.02 - Recommended Practices

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:G128–95
Standard Guide for
1
Control of Hazards and Risks in Oxygen Enriched Systems
This standard is issued under the fixed designation G128; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (ϵ) indicates an editorial change since the last revision or reapproval.
NOTE 2—ASTM takes no position respecting the validity of any
1. Scope
evaluationmethodsassertedinconnectionwithanyitemmentionedinthis
1.1 This guide covers an overview of the work of ASTM
guide. Users of this guide are expressly advised that determination of the
Committee G-4 on Compatibility and Sensitivity of Materials
validity of any such evaluation methods and data and the risk of use of
in Oxygen-Enriched Atmospheres. It is a starting point for
such evaluation methods and data are entirely their own responsibility.
those asking the question: “Are there any problems associated
2. Referenced Documents
with my use of oxygen?” and an introduction to the unique
concernsthatmustbeaddressedinthehandlingofoxygen.The 2.1 ASTM Standards:
principal hazard is the prospect of ignition with resultant fire,
G63 Guide for Evaluating Nonmetallic Materials for Oxy-
3
explosion, or both. This hazard requires design considerations gen Service
3
beyond those that apply to all systems, such as adequate
G88 Guide for Designing Systems for Oxygen Service
strength, corrosion resistance, fatigue resistance, and pressure G93 Practice for Cleaning Methods for Material and
3
safety relief.
Equipment Used in Oxygen-Enriched Environments
3
1.2 This guide also lists several of the recognized causes of G94 Guide for Evaluating Metals for Oxygen Service
oxygen system fires and describes the methods available to
2.2 ASTM Adjuncts:
4
prevent them. Sources of information about the oxygen hazard Video: Oxygen Safety
and its control are listed and summarized. The principal focus
2.3 ASTM CHETAH Program:
is on Guides G63, G88, Practice G93, and Guide G94. CHETAH Chemical Thermodynamic Data and Energy
5
Useful documentation from other resources and literature is
Release Computer Program
6
also cited. 2.4 Compressed Gas Association (CGA) Standards:
G-4.1 Cleaning Equipment for Oxygen Service
NOTE 1—This guide is an outgrowth of an earlier (1988) Committee
G-4.4 Industrial Practices for Gaseous Oxygen Transmis-
G-4 videotape adjunct entitled Oxygen Safety and a related paper by
2
sion and Distribution Piping Systems
Koch that focused on the recognized ignition source of adiabatic
compression—among the more significant but often overlooked causes of 2.5 European Industrial Gas Association (EIGA) Stan-
7
oxygen fires. This guide recapitulates and updates material in the
dards:
videotape and paper.
33/86/E Cleaning of Equipment for Oxygen Service
2.6 NATIONAL Fire Protection Association (NFPA) Stan-
1.3 This standard does not purport to address all of the
8
safety concerns, if any, associated with its use. It is the dards:
50 Bulk Oxygen Systems at Consumer Sites
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. For specific
3
Annual Book of ASTM Standards, Vol 14.02.
precautionary statements see Sections 8 and 11. 4
Oxygen Safety, adjunct is available from ASTM Customer Service, 100 Barr
Harbor Drive, West Conshohocken, PA 19428. Request PCN #12-700880-31.
5
Available from ASTM Headquarters, 100 Barr Harbor Drive, West Consho-
hocken, PA 19428, order 0505189015 (3.5-in. media) and 0505189115 (5.25-in.
1
This guide is under the jurisdiction ofASTM Committee G-4 on Compatibility media).
6
and Sensitivity of Materials in Oxygen Enriched Atmosphere and is the direct Available from Compressed Gas Association, 1725 Jefferson Davis Highway,
responsibility of Subcommittee G04.02 on Recommended Practices. Suite 1004, Arlington, VA 22202.
7
Current edition approved Jan. 15, 1995. Published March 1995. AvailablefromEuropeanIndustrialGasAssociation,PublicationdelaSoudure
2
Koch, U. H., “Oxygen System Safety,” Flammability and Sensitivity of Autogene, 32 Boulevard de la Chapelle, 75880 Paris Cedex 18, France.
8
Materials In Oxygen-Enriched Atmospheres,Vol6,ASTMSTP1197,ASTM,1993, Available from the National Fire ProtectionAssociation, 1 Batterymarch Park,
pp. 349–359. Box 9101, Quincy, MA 02269-9101.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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G128–95
51 Oxygen-Fuel Gas Systems for Welding, Cutting and 3.2.3.1 Discussion—The magnitude of a risk relates to how
Allied Processes likely a hazard is to cause harm.
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