ASTM G88-21 PDF
Standard Guide for Designing Systems for Oxygen Service
Standard Guide for Designing Systems for Oxygen Service
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 27
- Дата публикации:
- 1 октября 2021 г.
- Издание:
- G88
- ICS:
- 11.040.10
SIGNIFICANCE AND USE 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-review... SCOPE 1.1 This 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. 1.2 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. 1.3 This 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 ...
Abstract
Overview
ASTM G88-21: Standard Guide for Designing Systems for Oxygen Service provides essential guidance for technical professionals responsible for the safety and reliability of oxygen systems. This ASTM standard focuses on identifying and minimizing ignition sources and fire propagation risks in oxygen and oxygen-enriched systems. It is a key reference for those designing new oxygen service systems or auditing existing installations, emphasizing the critical factors that impact fire safety throughout the operational life of the system.
ASTM G88-21 does not serve as a prescriptive specification; rather, it offers a systematic approach for understanding design hazards and applying best practices. This guide is widely adopted by industries where oxygen use poses significant fire risks, supporting overall safety program development and compliance with regulatory requirements.
Key Topics
ASTM G88-21 covers several crucial aspects to ensure safe design and operation of oxygen systems:
- Ignition and Fire Hazards: Identifies common ignition sources, including temperature, spontaneous ignition, pressure, oxygen concentration, contamination, particle impact, heat of compression, friction and galling, resonance, static electric discharge, and mechanical impact.
- System Design Principles: Highlights the importance of managing temperatures and pressures, maintaining clean systems, using proven and compatible hardware, minimizing available fuel sources, and designing to control fire propagation.
- Safety Audits: Outlines how to perform safety audits of existing oxygen systems, starting with schematic review and followed by physical inspection.
- Operational Practices: Stresses the need for comprehensive safety training for personnel involved in design, cleaning, assembly, operations, and maintenance of oxygen components and systems.
- Complementary Evaluations: Recommends using this guide alongside specialized guides for material selection (such as ASTM G63 and G94) and cleaning methodologies (ASTM G93).
Applications
ASTM G88-21 is applicable across a wide range of industries and facilities where oxygen service is integral. Key applications include:
- Industrial Gas Production: Ensures safety in air separation plants, oxygen pipelines, and storage systems.
- Chemical and Petrochemical Industries: Guides safe system design for oxygen-enriched processes and transportation.
- Medical and Breathing Gas Systems: Assesses and helps mitigate fire risks in systems delivering high-purity oxygen to healthcare environments.
- Aerospace and Defense: Supports the design of propulsion and life-support systems involving oxygen and oxygen-enriched atmospheres.
- Equipment Manufacturing: Advises manufacturers of valves, compressors, tanks, and piping for oxygen service on risk identification and design safety factors.
By following the design and safety recommendations in ASTM G88-21, organizations can significantly reduce the likelihood and severity of fire incidents in oxygen systems, ensuring higher reliability and compliance with international safety standards.
Related Standards
ASTM G88-21 ties into a broader body of standards and best practices for oxygen system safety and material compatibility. Notable related standards include:
- ASTM G63 - Guide for Evaluating Nonmetallic Materials for Oxygen Service
- ASTM G93 - Guide for Cleanliness Levels and Cleaning Methods for Materials and Equipment Used in Oxygen-Enriched Environments
- ASTM G94 - Guide for Evaluating Metals for Oxygen Service
- ASTM G128 - Guide for Control of Hazards and Risks in Oxygen-Enriched Systems
- ASTM G175 - Test Method for Evaluating the Ignition Sensitivity and Fault Tolerance of Oxygen Pressure Regulators
- NFPA 50 & 53 - Standards for Bulk Oxygen Systems and Oxygen-Enriched Atmospheres
- CGA E-4, G-4.1, and others – Compressed Gas Association guidelines for pressure regulators and cleaning
- EIGA IGC Series – European Industrial Gases Association documents on fire hazards, compressor design, and cleaning
These standards can be used together to create a comprehensive approach to oxygen safety, addressing everything from materials selection and cleaning to operational procedures and fire incident investigation. For additional practical details, users may reference ASTM Manual 36, which compiles guidelines for the safe use and operation of oxygen systems.
Keywords: ASTM G88-21, oxygen service, oxygen system design, oxygen safety, ignition sources, fire hazards, material compatibility, oxygen-enriched system, cleaning methods, standard guide, industrial gas, medical oxygen systems, oxygen piping, system audits, compliance, safety training.
Технические детали
- Технический комитет
- G04 - Compatibility and Sensitivity of Materials in Oxygen Enriched Atmospheres
- SKU
- ASTM G88-21
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