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Normas ASTM – AENOR
ASTM G128-95

ASTM G128-95

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

Fecha:
2017-08-16 /Historical
Superseeded by:
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.
Keywords:
Adiabatic compression; Autoignition; Cleaning agents; Combustion; Compression heating; Contamination; Explosion; Fire; Flammability; GOX; Ignition; Liquid oxygen (LOX); LOX; Material evaluation/selection; Oxygen compatibility; Oxygen-enriched environments; Oxygen service; Oxygen systems; Shielding; hazards/risks in oxygen systems-control, guide
55,98
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