1.1 本指南确定了在通过人员进入或远程检查对已安装的热塑性塑料管道进行检查和验收时需要考虑的管道组件、推荐协议和评估标准。 1.2 本指南旨在进行与安装相关的观察，并假设已完成安装前检查，且填料已发生所有最终沉降。安装后至少应进行30天的检查。该检查期可以延长，以适应安装人员的保修期，保修期通常为一年或更长。 注1: 本标准涵盖的管道类型通常按照AASHTO LRFD桥梁施工规范或惯例安装 D2321 . 1.3 它适用于根据规范制造的热塑性无压重力流雨水管和污水管 D3034 , F679 , F714 , F794 , F894 , F949 , F1803 , F2306 , F2435 , F2562 , F2648 , F2763 , F2764 , F2881 , F2947 , F3123 ISO 21138、ISO 4435、ISO 8772和ISO 8773。如果业主批准，它也可以用于本清单未涵盖但具有类似物理或性能特征的任何类似热塑性塑料管产品。本指南不取代任何监管要求、项目规范或所述热塑性雨水和下水道标准中的任何要求。 1.4 除非情有可原的情况阻止工程师进行此类检查，否则通常使用人员进入。除非业主或工程师另有规定，否则建议对直径为30英寸[750毫米]及以下的管道进行远程检查。人员进入最终取决于工程师的安全、规模和环境考虑评估。 1.5 手动检查已安装管道的通道应遵循OSHA 29 CFR第1926部分AA子部分或ISO 45001，或任何其他适用于进入密闭空间的规定。 本标准并不旨在解决与其使用相关的所有安全问题（如果有的话）。本标准的使用者有责任在使用前建立适当的安全和健康实践，并确定监管限制的适用性。 1.6 以国际单位制或英寸-磅单位表示的值应单独视为标准值。每个系统中所述的值不一定是完全等效的；因此，为确保符合标准，每个系统应独立使用，两个系统的值不得组合。 1.7 本标准并不旨在解决与其使用相关的所有安全问题（如果有的话）。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。 1.8 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 =====意义和用途====== 4.1 对已安装的热塑性雨水管和污水管的检查验证了产品的正确安装，并为进一步评估建立了比较基准。 4.2 本指南可供业主在编制项目规范以及在管道安装后检查期间识别、评估和解释观察结果时参考。 4.3 现场评估应由独立的第三方工程公司或业主正式指定的代表进行，无论是远程评估还是人工输入。

1.1 This guide identifies pipeline components, recommended protocols and evaluation criteria to consider in the inspection and acceptance of installed thermoplastic pipe by either person-entry, or remote inspection. 1.2 This guide is intended for installation related observations and assumes that pre-installation inspection has been completed and all final settlement of fill has occurred. Inspection should be a minimum of 30 days after installation. This inspection period could be increased to accommodate the installer’s warranty period, which is typically one year or greater. Note 1: Pipe types covered under this standard are typically installed under the AASHTO LRFD Bridge Construction Specifications or Practice D2321 . 1.3 It applies to the thermoplastic non-pressure gravity flow storm and sewer pipe manufactured in accordance with Specifications D3034 , F679 , F714 , F794 , F894 , F949 , F1803 , F2306 , F2435 , F2562 , F2648 , F2763 , F2764 , F2881 , F2947 , F3123 , ISO 21138, ISO 4435, ISO 8772 and ISO 8773. It may also be considered for use for any similar thermoplastic pipe products not covered by this list but with similar physical or performance characteristics if approved by the owner. This guide does not supersede any regulatory requirements, project specifications, or any of the requirements in the noted thermoplastic storm and sewer standards. 1.4 Person entry is normally used unless extenuating circumstances preclude this type inspection by the engineer. Remote inspection is recommended for use for pipe diameters of 30 in. [750 mm] and smaller unless otherwise specified by owner or engineer. Person entry ultimately depends on the safety, size, and environmental consideration assessments by the engineer. 1.5 Access of installed pipe for manual inspection should follow OSHA 29 CFR PART 1926 SUBPART AA or ISO 45001, or any other applicable regulations for confined space entry. 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. 1.6 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 1.7 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. 1.8 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 inspection of installed thermoplastic storm and sewer pipe verifies proper installation of the product and establishes a baseline for comparison for further evaluation. 4.2 This guide is useful as a reference by an owner in preparing project specifications and to identify, evaluate and interpret observations during post installation inspections of pipe. 4.3 Field evaluations either remotely or with person entry should be made by an independent 3rd party engineering firm or duly appointed representative of the owner.