1.1 本指南旨在为私人建筑业主、承包商、建筑师、房主和监管机构等建筑用户提供帮助，帮助他们为建筑住宅和儿童保育设施的使用情况选择合适的液体涂料封装产品，以减少含铅涂料。本指南还提供了可用于帮助以下方面的信息:( 1. )确定涂漆表面是否适合封装( 2. )施加液体涂层封装产品( 3. )评估已安装的液体涂层封装产品，以及( 4. )保持被封装的表面。 1.2 本指南适用于主要依靠附着力附着在表面的任何液体应用产品，旨在减少人类接触油漆中的铅。 1.3 本指南并非用作培训手册。本文所包含的信息并非包罗万象，也没有为特定液体涂层封装产品的选择、应用或维护提供全面的说明。本指南旨在补充封装产品制造商提供的信息和法律规定的安全要求。本指南的用户应参考封装产品制造商关于封装产品应用和维护的说明。 1.4 本指南不包括液体涂层封装产品的最低材料性能要求。规范中提供了非增强液体涂层封装产品的性能规范 E1795 . 1.5 本指南未涵盖工业钢结构上使用的封装产品。工业钢结构包括但不限于桥梁、水塔和水箱。 1.6 关于评估液体涂层封装产品的现场性能的文件有限。因此，本指南采用了一种保守的方法来评估液体涂层封装产品的选择和使用。 在适当的情况下，将对中提供的指导进行修订，以获得有关这些产品如何随时间推移而表现的额外知识。 1.7 本指南的用户应遵守具有管辖权的机构颁布的关于封装产品使用的所有规定。 1.8 以国际单位制表示的数值应视为标准。SI单位后括号中给出的值仅供参考，不被视为标准值。 1.9 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。 1.10 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 本标准主要针对住宅和儿童保育设施的密封剂产品。它也可能适用于一些商业建筑。 4.2 在可能长时间站立的建筑物中，封装提供了一种保护居住者免受油漆中铅污染的方法。 这种无损减排策略在主要结构由于历史或经济原因需要保持完整的情况下是有用的。封装提供了一种减排策略，该策略可能比通过去除油漆进行减排更具成本效益。 4.3 影响含铅涂料液体涂料封装产品的环境和使用条件有很多，为了满足各种条件的要求，专门开发了不同类型的液体涂料封装制品。产品类型包括非增强液体涂料，以及内部或外部使用的产品。 这些产品可以应用于涂有一层或多层含铅油漆以及可能的其他涂层的许多不同表面上。使用中的封装产品会受到多种磨损。还提供各种颜色和饰面。本指南旨在帮助购买者确定哪种产品最适合使用该产品的特定条件。 4.4 如本指南所述，封装产品必须与所应用的表面兼容。封装产品必须与表面涂层结合，不得导致次表层分离或变质。

1.1 This guide is intended to provide building users such as private building owners, contractors, architects, homeowners, and regulatory authorities with assistance in selecting an appropriate liquid coating encapsulation product for architectural residence and child-care facility use situations for abating leaded paint. This guide also provides information that can be used to assist in the following: ( 1 ) determining whether a painted surface is suitable for encapsulation, ( 2 ) applying a liquid coating encapsulation product, ( 3 ) evaluating installed liquid coating encapsulation products, and ( 4 ) maintaining the encapsulated surface. 1.2 This guide applies to any liquid-applied product that relies primarily on adhesion for attachment to the surface and is designed to reduce human exposure to lead in paint. 1.3 This guide is not intended for use as a training manual. The information contained herein is not all-inclusive and does not provide comprehensive instructions for the selection, application, or maintenance of specific liquid coating encapsulation products. This guide is intended to supplement information supplied by encapsulation product manufacturers and safety requirements established by law. The user of this guide shall refer to the encapsulation product manufacturer’s instructions for encapsulation product application and maintenance. 1.4 This guide does not cover minimum material performance requirements for liquid coating encapsulation products. Performance specifications for non-reinforced liquid coating encapsulation products are provided in Specification E1795 . 1.5 Encapsulation products for use on industrial steel structures are not covered in this guide. Industrial steel structures include, but are not limited to, bridges, water towers, and tanks. 1.6 Limited documentation is available on evaluating the field performance of liquid coating encapsulation products. A conservative approach to assessing the selection and use of liquid coating encapsulation products is thus adopted in this guide. As appropriate, the guidance provided within will be revised as additional knowledge regarding how these products perform over time is gained. 1.7 The user of this guide should follow all regulations promulgated by authorities having jurisdiction regarding the use of encapsulation products. 1.8 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard. 1.9 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. 1.10 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 standard primarily addresses encapsulant products for residential and child-care facilities. It may also be appropriate for some commercial buildings. 4.2 Encapsulation provides a means of protecting occupants from exposure to lead in paint in buildings that are likely to remain standing for a long period of time. This nondestructive abatement strategy is useful in situations in which the primary structure needs to remain intact for either historical or economic reasons. Encapsulation offers an abatement strategy that may be more cost effective than abatement by removal of the paint. 4.3 There are many environmental and use conditions that affect leaded paint liquid coating encapsulation products, and different types of liquid coating encapsulation products have been developed specifically to meet the requirements of the various conditions. Product types include non-reinforced liquid coatings, as well as products for interior or exterior use. These products may be applied over many different surfaces coated with one or more layers of leaded paint and possibly other coatings. Encapsulation products in service are subjected to many kinds of wear. Various colors and finishes are also available. This guide is intended to assist the purchaser in determining which product is most appropriate for the specific conditions under which the product will be used. 4.4 As described in this guide, an encapsulation product must be compatible with the surface to which it is applied. An encapsulation product must bond to the surface coating, and not cause the subsurface layers to separate or deteriorate.