Standard Guide for Designing Systems for Oxygen Service

Importancia y uso:

4.1 Purpose of Guide G88—The purpose of this guide is to furnish qualified technical personnel with pertinent information for use in designing oxygen systems or assessing the safety of oxygen systems. It emphasizes factors that cause ignition and enhance propagation throughout a system's service life so that the occurrence of these conditions may be avoided or minimized. It is not intended as a specification for the design of oxygen systems.

4.2 Role of Guide G88—ASTM Committee G04’s abstract standard is Guide G128, and it introduces the overall subject of oxygen compatibility and the body of related work and related resources including standards, research reports and a DVD3 G04 has developed and adopted for use in coping with oxygen hazards. The interrelationships among the standards are shown in Table 1. Guide G88 deals with oxygen system and hardware design principles, and it is supported by a regulator ignition test (see G175). Other standards cover: (1) the selection of materials (both metals and nonmetals) which are supported by a series of standards for testing materials of interest and for preparing materials for test; (2) the cleaning of oxygen hardware which is supported by a series of standards on cleaning procedures, cleanliness testing methods, and cleaning agent selection and evaluation; (3) the study of fire incidents in oxygen systems; and (4) related terminology.

(A) Test Method D2863 is under the jurisdiction of Committee D20 on Plastics, and Test Method D4809 is under the jurisdiction of Committee D02 on Petroleum Products and Lubricants but both are used in the asessment of flammability and sensitivity of materials in oxygen-enriched atmospheres.(B) ASTM Manual 36 – Safe Use of Oxygen and Oxygen Systems can be used as a handbook to furnish qualified technical personnel with pertinent information for use in designing oxygen systems or assessing the safety of oxygen systems. However, Manual 36 is not a balloted technical standard.(C) Peer-reviewed technical papers published in ASTM Special Technical Publications (STPs) and Journal of ASTM International are not balloted standards.

4.3 Use of Guide G88—Guide G88 can be used as an initial design guideline for oxygen systems and components, but can also be used as a tool to perform safety audits of existing oxygen systems and components. When used as an auditing tool for existing systems, Guide G88 can be applied in two stages: first examining system schematics/drawings, then by visually inspecting the system (that is, “walking the pipeline”). Guide G88 can be used in conjunction with the materials selection/hazards analysis approach outlined in Guides G63 and G94 to provide a comprehensive review of the fire hazards in an oxygen or oxygen-enriched system (1).7

Subcomité:

G04.02

Referida por:

G0126-16R23, G0124-18, D5885_D5885M-20, E2349-19, G0145-08R23, G0128_G0128M-15R23, G0094-22, F1792-97R21, G0063-15R23, G0086-17, G0093_G0093M-19, G0175-24, G0074-13R21

Volúmen:

14.04

Número ICS:

11.040.10 (Anaesthetic, respiratory and reanimation equipment)

Palabras clave:

burning; burn-resistant materials; combustion; contamination; fire; heat of compression; ignition; oxygen-enriched atmosphere; oxygen service; oxygen system; particle impact; propagation; system cleanness;