Standard Guide for Designing Systems for Oxygen Service

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

11-03-2021

Publisher

American Society for Testing and Materials

1.1This guide applies to the design of systems for oxygen or oxygen-enriched service but is not a comprehensive document. Specifically, this guide addresses system factors that affect the avoidance of ignition and fire. It does not thoroughly address the selection of materials of construction for which Guides G63 and G94 are available, nor does it cover mechanical, economic or other design considerations for which well-known practices are available. This guide also does not address issues concerning the toxicity of nonmetals in breathing gas or medical gas systems.

Note 1:The American Society for Testing and Materials 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.

1.2This 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.3This standard guide is organized as follows:

Section Title	Section
Referenced Documents	2
ASTM Standards	2.1
ASTM Adjuncts	2.2
ASTM Manuals	2.3
NFPA Documents	2.4
CGA Documents	2.5
EIGA Documents	2.6
Terminology	3
Significance and Use	4
Purpose of G88	4.1
Role of G88	4.2
Use of G88	4.3
Factors Affecting the Design for an Oxygen or Oxygen- Enriched System	5
General	5.1
Factors Recognized as Causing Fires	5.2
Temperature	5.2.1
Spontaneous Ignition	5.2.2
Pressure	5.2.3
Concentration	5.2.4
Contamination	5.2.5
Particle Impact	5.2.6
Heat of Compression	5.2.7
Friction and Galling	5.2.8
Resonance	5.2.9
Static Electric Discharge	5.2.10
Electrical Arc	5.2.11
Flow Friction	5.2.12
Mechanical Impact	5.2.13
Kindling Chain	5.2.14
Other Ignition Mechanisms	5.2.15
Test Methods	6
System Design Method	7
Overview	7.1
Final Design	7.2
Avoid Unnecessarily Elevated Temperatures	7.3
Avoid Unnecessarily Elevated Pressures	7.4
Design for System Cleanness	7.5
Avoid Particle Impacts	7.6
Minimize Heat of Compression	7.7
Avoid Friction and Galling	7.8
Avoid Corrosion	7.9
Avoid Resonance	7.10
Use Proven Hardware	7.11
Design to Manage Fires	7.12
Anticipate Indirect Oxygen Exposure	7.13
Minimize Available Fuel/Oxygen	7.14
Avoid Potentially Exothermic Material Combinations	7.15
Anticipate Common Failure Mechanism Consequences	7.16
Avoid High Surface-Area-to-Volume (S/V) Conditions where Practical	7.17
Avoid Unnecessarily-Elevated Oxygen Concentrations	7.18
Anticipate Permutations from Intended System Design	7.19
Avoid Designs and Failure Scenarios that can Introduce Potential Flow Friction Ignition Hazards	7.20
Use Only the Most Compatible of Practical Materials and Designs	7.21
Provide Thorough Safety Training for All Personnel Working with Oxygen or Oxygen-Enriched Components or Systems, including Design, Cleaning, Assembly, Operations, and Maintenance as Applicable to Personnel	7.22
Miscellaneous	7.23
Examples	8
Key Words	9
References

1.4This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Committee	G 04
DocumentType	Guide
Pages	27
PublisherName	American Society for Testing and Materials
Status	Current
Supersedes	ASTM G 88 : 2013 : EDT 1

ASTM F 1792 : 1997 : R2021	Standard Specification for Special Requirements for Valves Used in Gaseous Oxygen Service
ASTM G 86 : 2017	Standard Test Method for Determining Ignition Sensitivity of Materials to Mechanical Impact in Ambient Liquid Oxygen and Pressurized Liquid and Gaseous Oxygen Environments
ASTM E 2349 : 2019	Standard Practice for Safety Requirements in Metal Casting Operations: Sand Preparation, Molding, and Core Making; Melting and Pouring; and Cleaning and Finishing
ASTM G 126 : 2016	Standard Terminology Relating to the Compatibility and Sensitivity of Materials in Oxygen Enriched Atmospheres
ASTM G 175 : 2013	Standard Test Method for Evaluating the Ignition Sensitivity and Fault Tolerance of Oxygen Pressure Regulators Used for Medical and Emergency Applications
ASTM G 94 : 2005 : R2014	Standard Guide for Evaluating Metals for Oxygen Service
ASTM G 128/G128M : 2015	Standard Guide for Control of Hazards and Risks in Oxygen Enriched Systems
ASTM G 145 : 2008 : R2016	Standard Guide for Studying Fire Incidents in Oxygen Systems
ASTM G 124 : 2018	Standard Test Method for Determining the Combustion Behavior of Metallic Materials in Oxygen-Enriched Atmospheres
ASTM G 63 : 2015	Standard Guide for Evaluating Nonmetallic Materials for Oxygen Service
ASTM D 5885/D5885M : 2020	Standard Test Method for Oxidative Induction Time of Polyolefin Geosynthetics by High-Pressure Differential Scanning Calorimetry

ASTM G 74 : 2013 : R2021	Standard Test Method for Ignition Sensitivity of Nonmetallic Materials and Components by Gaseous Fluid Impact
ASTM G 94 : 2005 : R2014	Standard Guide for Evaluating Metals for Oxygen Service
ASTM G 94 : 2022	Standard Guide for Evaluating Metals for Oxygen Service
ASTM G 63 : 2015 : R2023	Standard Guide for Evaluating Nonmetallic Materials for Oxygen Service
ASTM G 175 : 2013	Standard Test Method for Evaluating the Ignition Sensitivity and Fault Tolerance of Oxygen Pressure Regulators Used for Medical and Emergency Applications
ASTM G 175 : 2013 : R2021	Standard Test Method for Evaluating the Ignition Sensitivity and Fault Tolerance of Oxygen Pressure Regulators Used for Medical and Emergency Applications