1.1 本规程规定了在许多典型土壤条件下埋设压力和非压力“玻璃纤维”（玻璃纤维增强热固性树脂）管道的程序。包括挖沟、铺设管道、连接管道、铺设和压实回填以及监测挠度水平的建议。不包括在水下条件下安装玻璃纤维管的指南。 1.2 玻璃纤维管的产品标准涵盖了广泛的产品变量。直径范围为1英寸。至13 ft（25 mm至4000 mm），管道刚度范围为9至72 psi（60至500 kPa），内部压力额定值高达每平方英寸数千磅力。本标准无意考虑可能出现的管道、土壤类型和自然地面条件的所有可能组合。本规程中的建议可能需要修改或扩展，以满足某些安装条件的需要。 特别是，直径为几英寸的玻璃纤维管通常非常坚硬，因此经常根据不同的指南进行安装。咨询管道制造商，了解适用于这些特定管道的实践指南。 1.3 本规程的范围不包括产品性能标准，如最小管道刚度、最大使用挠度或长期强度。此类参数可能包含在玻璃纤维管的产品标准或设计规范中，或两者都包含。指定的产品制造商或项目工程师有责任验证并确保指定用于预期应用的管道，当按照本规程中概述的程序安装时，将根据该应用的标准提供长期、令人满意的性能。 注1: 没有已知的ISO等效于本标准。 注2: AWWA实践手册M45玻璃纤维管设计中讨论了偏转的重要性，并介绍了近似场偏转的简化方法。 1.4 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.5 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.6 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《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 4.1 本规程供设计人员和规范人员、制造商、安装承包商、监管机构、业主和参与埋地玻璃纤维管道施工的检验机构使用。与任何实践一样，可能需要针对特定工作条件或特殊的本地或区域条件进行修改。关于将这种做法纳入特定项目合同文件的建议，请参见 附录X1 .

1.1 This practice establishes procedures for the burial of pressure and nonpressure “fiberglass” (glass-fiber-reinforced thermosetting-resin) pipe in many typically encountered soil conditions. Included are recommendations for trenching, placing pipe, joining pipe, placing and compacting backfill, and monitoring deflection levels. Guidance for installation of fiberglass pipe in subaqueous conditions is not included. 1.2 Product standards for fiberglass pipe encompass a wide range of product variables. Diameters range from 1 in. to 13 ft (25 mm to 4000 mm) and pipe stiffnesses range from 9 to over 72 psi (60 to 500 kPa) with internal pressure ratings up to several thousand pound force per square inch. This standard does not purport to consider all of the possible combinations of pipe, soil types, and natural ground conditions that may occur. The recommendations in this practice may need to be modified or expanded to meet the needs of some installation conditions. In particular, fiberglass pipe with diameters of a few inches are generally so stiff that they are frequently installed in accordance with different guidelines. Consult with the pipe manufacturer for guidance on which practices are applicable to these particular pipes. 1.3 The scope of this practice excludes product-performance criteria such as a minimum pipe stiffness, maximum service deflection, or long-term strength. Such parameters may be contained in product standards or design specifications, or both, for fiberglass pipe. It is incumbent upon the specified product manufacturer or project engineer to verify and ensure that the pipe specified for an intended application, when installed in accordance with procedures outlined in this practice, will provide a long-term, satisfactory performance in accordance with criteria established for that application. Note 1: There is no known ISO equivalent to this standard. Note 2: A discussion of the importance of deflection and a presentation of a simplified method to approximate field deflections are given in AWWA Manual of Practice M45 Fiberglass Pipe Design. 1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.5 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. 1.6 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 This practice is for use by designers and specifiers, manufacturers, installation contractors, regulatory agencies, owners, and inspection organizations involved in the construction of buried fiberglass pipelines. As with any practice, modifications may be required for specific job conditions, or for special local or regional conditions. Recommendations for inclusion of this practice in contract documents for a specific project are given in Appendix X1 .