1.1 本规范描述了在结构上加固、密封和保护下水道人孔所需的所有工作。应用包括应用预包装的水泥内衬，可以作为全深度修复或部分深度修复。应手动喷涂均匀的高强度纤维增强水泥砂浆，并手动抹平或离心浇铸，使其达到规定的均匀厚度，覆盖从框架底部到工作台的所有清洁内表面。水泥内衬可用于砖、混凝土、砌块和各种其他材料制成的人孔。 1.2 制造商批准的涂敷器应提供完整的保护性预包装水泥内衬材料涂敷。所有清洁、准备和应用程序应符合制造商的建议。 1.3 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。 1.4 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和健康实践，并确定监管限制的适用性。根据OSHA的定义，人孔是需要许可证的密闭空间，应按此处理，需要密闭空间进入许可证、适当的监测设备和相关的个人防护设备。

1.1 This specification describes all the work required to structurally reinforce, seal, and protect sanitary sewer manholes. Applications include applying a prepackaged cementitious liner that can function as a full depth restoration or a partial depth repair. A uniform high-strength, fiber-reinforced cementitious mortar should be manually sprayed and hand troweled or centrifugally cast in a uniform, prescribed thickness to all cleaned, interior surfaces from the bottom of the frame to the bench. The cementitious liner may be applied to manholes constructed of brick, concrete, block, and various other materials. 1.2 A manufacturer’s approved applicator shall furnish the complete application of the protective, prepackaged cementitious liner material. All of the cleaning, preparation, and application procedures shall be in accordance with the manufacturer’s recommendations. 1.3 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. 1.4 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. Manholes are permit required confined spaces in accordance with OSHA definition and should be treated as such, requiring confined space entry permits, appropriate monitoring equipment, and the associated personal protective equipment.