1.1 本规范涵盖了下水道和供水工程用圆形加强波纹钢人孔组装和施工所用产品的制造和采购要求。本规范涵盖的产品通常不用于运输卫生或工业废物。用于制造人孔结构的钢板具有锌（镀锌）、铝、55%铝锌合金或锌-5的保护金属涂层 % 铝混合稀土合金或聚合物预涂层。 1.2 第一部分，章节 1. 通过 11 本规范的第，节介绍了各波纹钢产品的一般要求和共同要求 1.3 . 1.3 本规范第二部分在以下章节中对每个人孔产品提出了具体要求: 产品 部分 等级环 12 人孔结构 13 基础部分 14 台阶和梯子 15 1.4 可指定镀锌、镀铝或聚合物涂层的钢板用于人孔结构的制造。由具有复合涂层的板材制成的人孔结构始终配有经批准的涂层。 注1: 用聚合物涂层板制成的管道可用于卫生下水道和工业应用。 注2: 本规范仅为制造规范和采购规范，不包括回填要求或现场荷载条件之间的关系。 1.5 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》中确立的国际公认标准化原则制定的。

1.1 This specification covers the manufacture and purchase requirements of products used for assembly and construction of circular reinforced corrugated steel manholes used in sewer and water works. Products covered by this specification are not normally used for the conveyance of sanitary or industrial wastes. The steel sheet used in fabrication of the manhole structures has a protective metallic coating of zinc (galvanizing), aluminum, 55 % aluminum-zinc alloy, or zinc-5 % aluminum-mischmetal alloy, or a polymer pre-coating. 1.2 Part I, Sections 1 through 11 , of this specification presents general requirements and requirements that are common to each corrugated steel product in the sections outlined in 1.3 . 1.3 Part II of this specification presents specific requirements for each manhole product in the following section: Product Section Grade Rings 12 Manhole Structures 13 Base Section 14 Steps and Ladders 15 1.4 Steel sheet with zinc, aluminized or polymeric coating may be specified for the fabrication of the manhole structures. Manhole structures made from sheets with composite coatings are always furnished with an approved coating. Note 1: Pipe fabricated with polymeric coated sheet may be used for sanitary sewers and industrial applications. Note 2: This specification is a manufacturing specification and purchase specification only and does not include requirements for backfill, or the relationship between field load conditions. 1.5 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.