1.1 本指南适用于非金属材料（以下称为材料），用于氧气或富氧流体服务（直接或间接），定义如下。它用于选择与氧气的生产、储存、运输、分配或使用相关的材料。它主要与材料的财产有关，这些属性与材料对点火和燃烧传播的相对敏感性有关； 它不涉及机械财产、潜在毒性、放气、系统中各种材料之间的反应、功能可靠性或性能特征，例如物理老化、退化、磨损、硬化或脆化，除非这些可能导致着火。 1.2 当该文件最初于1980年发布时，它同时涉及金属和非金属。它的范围已经缩小，仅针对非金属和单独的标准指南 第94页 已开发用于处理金属。 1.3 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践，并确定监管限制的适用性。 注1: 美国材料与试验协会对与本指南中提及的任何项目相关的任何评估方法的有效性不持任何立场。 明确建议本指南的用户自行决定任何此类评估方法和数据的有效性以及使用此类评估方法与数据的风险。 注2: 在评估材料时，应从危险角度评估在高于大气压力下氧气浓度超过大气浓度的任何混合物，以确定材料可燃性是否可能显著增加。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《国际标准、指南和建议制定原则决定》中确立的国际公认标准化原则制定的。 =====意义和用途====== 4.1 本指南的目的是为合格的技术人员提供相关信息，以便在选择氧气服务材料时使用，从而最大限度地降低着火概率和爆炸或火灾风险。本规范不适用于批准氧气服务材料。

1.1 This guide applies to nonmetallic materials, (hereinafter called materials) under consideration for oxygen or oxygen-enriched fluid service, direct or indirect, as defined below. It is intended for use in selecting materials for applications in connection with the production, storage, transportation, distribution, or use of oxygen. It is concerned primarily with the properties of a material associated with its relative susceptibility to ignition and propagation of combustion; it does not involve mechanical properties, potential toxicity, outgassing, reactions between various materials in the system, functional reliability, or performance characteristics such as physical aging, degradation, abrasion, hardening, or embrittlement, except when these might contribute to an ignition. 1.2 When this document was originally published in 1980, it addressed both metals and nonmetals. Its scope has been narrowed to address only nonmetals and a separate standard Guide G94 has been developed to address metals. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 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. Note 2: In evaluating materials, any mixture with oxygen exceeding atmospheric concentration at pressures higher than atmospheric should be evaluated from the hazard point of view for possible significant increase in material combustibility. 1.4 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. ====== Significance And Use ====== 4.1 The purpose of this guide is to furnish qualified technical personnel with pertinent information for use in selecting materials for oxygen service in order to minimize the probability of ignition and the risk of explosion or fire. It is not intended as a specification for approving materials for oxygen service.