1.1 本规程涵盖旨在减少或消除从易碎喷涂或抹平的含石棉铺面材料基质中释放石棉纤维的密封剂。 1.2 该实践包括在现场对正在考虑或已经进行封装的石棉消除项目进行的一系列测定。 1.3 本规程用于根据规程确定封装作为缓解措施的适当性 E1368 ，作为项目设计调查的一部分 E2356 ，并根据实践证明减排的完整性 E1368 . 用于其他目的的封装表面材料的性能不在本规程的范围内。使用测试方法 E84 , E119 和 E605型 确定材料的其他特性。 1.4 以国际单位制表示的数值应视为标准值。括号中给出的值是英寸-磅单位的数学转换，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 警告- 石棉纤维是公认的致癌物。呼吸石棉纤维会导致肺部疾病，包括石棉肺、肺癌和间皮瘤。 2. 应采取本标准实施规程中的预防措施，以避免从已知或怀疑含有石棉的材料中产生和吸入空气颗粒。 看见 2.3 有关石棉的监管要求。 1.7 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 本规程的目的是根据规程提供涉及石棉消除项目表面材料用密封剂的试验方法和性能标准 E1368 ，包括将密封剂应用于铺面材料作为缓解措施，以及移除现有的封装铺面材料。 4.1.1 涉及密封剂应用的减排项目需要覆盖、渗透和内聚/粘附测试，以确定项目设计期间、测试贴片上和项目结束时的封装要求，以确定减排的完整性。 4.1.2 移除项目需要在项目设计期间对测试补丁进行渗透测试，以确定封装和未封装表面材料的厚度。 4.2 本实施规程中描述的测试方法和性能标准也可在符合实践的项目设计调查期间使用 E2356 提供信息，以编制应用或移除封装表面材料的计划和规范。 4.3 安装在建筑物中的含石棉表面材料可能包括防火、隔音和装饰灰泥以及隔音。本规程中未直接提及的特性可能很重要，应考虑适当的测试方法。见测试方法 E84 , E119 和 E605型 ，和1-GP-205M2003。 4.4 本规程中描述的试验方法旨在( 1. )确定密封剂在铺面材料基质中的渗透深度或缺乏深度( 2. )确定表面材料上密封剂的覆盖率，以及( 3. )确定封装表面材料的粘附性和内聚性。 4.5 遵守本实践中的验收标准和参考规范并不保证减排项目将通过目视检查，以确保实际清理的完整性 E1368 或者该项目将通过最终空气采样以获得许可，因为除密封剂性能外的其他因素会影响这些结果。

1.1 This practice covers encapsulants intended to reduce or eliminate the release of asbestos fibers from a matrix of friable spray- or trowel-applied asbestos-containing surfacing material. 1.2 This practice includes a series of determinations to be conducted in the field on asbestos abatement projects for which encapsulation is being considered or has been performed. 1.3 This practice is to be used to determine the appropriateness of encapsulation as an abatement measure in accordance with Practice E1368 , as part of a Project Design Survey in accordance with Practice E2356 , and to demonstrate completeness of abatement in accordance with Practice E1368 . Performance of the encapsulated surfacing material for other purposes is not within the scope of this practice. Use Test Methods E84 , E119 , and E605 to determine other properties of the material. 1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound 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 Warning— Asbestos fibers are acknowledged carcinogens. Breathing asbestos fibers can result in disease of the lungs including asbestosis, lung cancer, and mesothelioma. 2 Precautions in this standard practice should be taken to avoid creating and breathing airborne particles from materials known or suspected to contain asbestos. See 2.3 for regulatory requirements addressing asbestos. 1.7 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 purpose of this practice is to provide test methods and performance criteria involving encapsulants for surfacing material on an asbestos abatement project in accordance with Practice E1368 , including the application of encapsulants to the surfacing material as an abatement measure and the removal of existing encapsulated surfacing material. 4.1.1 Abatement projects involving application of encapsulants require coverage, penetration, and cohesion/adhesion tests to determine encapsulation requirements during project design, on test patches, and at conclusion of the project to determine completeness of abatement. 4.1.2 Removal projects requires penetration tests during project design on test patches to determine thicknesses of encapsulated and un-encapsulated surfacing material. 4.2 The test methods and performance criteria described in this practice may also be used during a Project Design Survey in accordance with Practice E2356 to provide information for preparing the plans and specifications for applying or removing the encapsulated surfacing material. 4.3 Asbestos-containing surfacing materials installed in buildings may include fireproofing, acoustical and decorative plaster, and soundproofing. Properties not directly addressed in this practice may be important and appropriate test methods should be considered. See Test Methods E84 , E119 , and E605 , and 1-GP-205M2003. 4.4 The test methods described in this practice are designed to ( 1 ) determine the depth of penetration, or lack thereof, of the encapsulant into the matrix of the surfacing material, ( 2 ) determine the coverage of the encapsulant on the surfacing material, and ( 3 ) to determine the adhesive and cohesive properties of the encapsulated surfacing material. 4.5 Compliance with the acceptance criteria in this practice and with referenced specifications does not guarantee that the abatement project will pass the visual inspection for completeness of clean-up in Practice E1368 , or that the project will pass final air sampling for clearance, as other factors besides encapsulant performance affect these outcomes.