ASTM G128/G128M-15(2023)
Standard Guide for Control of Hazards and Risks in Oxygen Enriched Systems

Standard No.

ASTM G128/G128M-15(2023)

Release Date

2023

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM G128/G128M-15(2023)

Scope

1.1 This guide covers an overview of the work of ASTM Committee G04 on Compatibility and Sensitivity of Materials in Oxygen-Enriched Atmospheres. It is a starting point for those asking the question: “What are the risks associated with my use of oxygen?” This guide is 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. All fluid systems require design considerations, such as adequate strength, corrosion resistance, fatigue resistance, and pressure safety relief. In addition to these design considerations, one must also consider the ignition mechanisms that are specific to an oxygen-enriched system. This guide outlines these ignition mechanisms and the approach to reducing the risks. 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 G04 videotape adjunct entitled Oxygen Safety and a related paper by Koch2 that focused on the recognized ignition source of adiabatic compression as one of the more significant but often overlooked causes of oxygen fires. This guide recapitulates and updates material in the videotape and paper. 1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 1.4 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, health, and environmental 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. 1.5 This 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.

ASTM G128/G128M-15(2023) Referenced Document

• ASTM D2512 Standard Test Method for Compatibility of Materials with Liquid Oxygen (Impact Sensitivity Threshold and Pass-Fail Techniques)
• ASTM D2863 Standard Test Method for Measuring the Minimum Oxygen Concentration to Support Candle-like Combustion of Plastics (Oxygen Index)
• ASTM D4809 Standard Test Method for Heat of Combustion of Liquid Hydrocarbon Fuels by Bomb Calorimeter (Precision Method)
• ASTM G124 Standard Test Method for Determining the Combustion Behavior of Metallic Materials in Oxygen-Enriched Atmospheres
• ASTM G126 Standard Terminology Relating to the Compatibility and Sensitivity of Materials in Oxygen Enriched Atmospheres
• ASTM G175 Standard Test Method for Evaluating the Ignition Sensitivity and Fault Tolerance of Oxygen Pressure Regulators Used for Medical and Emergency Applications
• ASTM G63 Standard Guide for Evaluating Nonmetallic Materials for Oxygen Service
• ASTM G72 Standard Test Method for Autogenous Ignition Temperature of Liquids and Solids in a High-Pressure Oxygen-Enriched Environment
• ASTM G74 Standard Test Method for Ignition Sensitivity of Materials to Gaseous Fluid Impact
• ASTM G86 Standard Test Method for Determining Ignition Sensitivity of Materials to Mechanical Impact in Ambient Liquid Oxygen and Pressurized Liquid and Gaseous Oxygen Environments
• ASTM G88 Standard Guide for Designing Systems for Oxygen Service
• ASTM G93 Standard Practice for Cleaning Methods and Cleanliness Levels for Material and Equipment Used in Oxygen-Enriched Environments
• ASTM G94 Standard Guide for Evaluating Metals for Oxygen Service

ASTM G128/G128M-15(2023) history

• 2023 ASTM G128/G128M-15(2023) Standard Guide for Control of Hazards and Risks in Oxygen Enriched Systems
• 2015 ASTM G128/G128M-15 Standard Guide for Control of Hazards and Risks in Oxygen Enriched Systems
• 2002 ASTM G128-02(2008) Standard Guide for Control of Hazards and Risks in Oxygen Enriched Systems
• 2002 ASTM G128-02e1 Standard Guide for Control of Hazards and Risks in Oxygen Enriched Systems
• 2002 ASTM G128-02 Standard Guide for Control of Hazards and Risks in Oxygen Enriched Systems
• 1995 ASTM G128-95 Standard Guide for Control of Hazards and Risks in Oxygen Enriched Systems