1.1 本规程包括目视评估是否存在劣化油漆、表面灰尘、油漆碎片和油漆碎片，并对表面灰尘进行环境采样，以确定在采样时、铅危害减少活动或其他建筑维护和改造活动后是否存在铅危害。 1.2 本规程涉及具有类似单元、公共区域或外部场地的多户住宅的清理检查。 1.3 本规程还涉及可能包括土壤采样的清除检查，例如在进行土壤治理时。 1.4 本规程包括一个程序，用于确定是否满足粉尘和土壤铅清除水平的监管要求（如有保证），从而确定清除区域是否通过或未通过清除检查。 注1: 本规程基于40 CFR第745部分中描述的消除铅危害的“清除”部分，以及24 CFR 35中描述的除消除铅危害以外的铅危害减少活动的“清除”部分，但不使用其中所述的复合粉尘采样。 1.5 以国际单位制或英寸-磅单位表示的数值应单独视为标准值。每个系统中规定的值不一定是精确的等价物；因此，为确保符合本标准，每个系统应独立使用，且两个系统的值不得组合。 1.6 本规程中描述的方法可能不符合或不被具有管辖权的地方当局制定的要求或法规所允许。 本标准的用户有责任遵守所有此类要求和法规。 1.7 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。 1.8 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 对具有类似单元、公共区域或外部场地的多户住宅中的减排区域和与其他铅危害控制活动或建筑物维护或改造活动相关的其他区域进行清理检查，以确定清理区域是否足够安全，可以再次使用。 4.2 本标准的用户有责任确保在进行间隙检查之前满足所有法规、合同和人员要求。本标准的使用者至少应接受其使用和行为安全实践方面的培训。 4.3 本规程是为铅危害管理活动制定的一套标准之一。本标准中要求的视觉评估程序在实践中可以找到 E2255/E2255M 并在实践中发现了记录保存要求 E2239 . 4.4 虽然本规程主要针对多户住宅制定，但经客户和进行间隙检查的个人之间的协议，本规程也可适用于非住宅建筑和相关结构。 4.5 业主和物业管理人（包括业主-居住者）以及其他负责维护设施的人员可以使用这种做法。 主要危险管理顾问、建筑承包商、劳工团体、房地产和金融专业人士、保险组织、立法者、监管机构和法律专业人士也可以使用该软件。 4.6 本标准未涉及铅危害减少活动或其他建筑物改造或维护工作是否正确完成。

1.1 This practice covers visual assessment for the presence of deteriorated paint, surface dust, painted debris, and paint chips with environmental sampling of surface dust to determine whether a lead hazard exists at the time of sample collection, following lead-hazard reduction activities, or other building maintenance and modification activities. 1.2 This practice addresses clearance examination of multifamily dwellings having similar units, common areas or exterior sites. 1.3 This practice also addresses clearance examinations that may include soil sampling, for example when soil abatement has been performed. 1.4 This practice includes a procedure for determining whether regulatory requirements for lead clearance levels for dust and, where warranted, soil have been met, and, consequently whether a clearance area, passes or fails a clearance examination. Note 1: This practice is based on that portion of “clearance” described in 40 CFR Part 745 for abatement, and in 24 CFR 35 for lead-hazard reduction activities other than abatement, except that composite dust sampling as described therein is not used. 1.5 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. 1.6 Methods described in this practice may not meet or be allowed by requirements or regulations established by local authorities having jurisdiction. It is the responsibility of the user of this standard to comply with all such requirements and regulations. 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 A clearance examination of abatement areas and other areas associated with other lead-hazard control activities, or building maintenance or modification activities in multifamily dwellings having similar units, common areas or exterior sites is performed to determine that the clearance area is adequately safe for reoccupancy. 4.2 It is the responsibility of the user of this standard to assure that all regulatory, contractual, and personnel requirements are met prior to conduct of a clearance examination. At a minimum, users of this standard shall be trained in its use and in safe practices for its conduct. 4.3 This practice is one of a set of standards developed for lead hazard management activities. The visual assessment procedures required in this standard are found in Practice E2255/E2255M and the record keeping requirements are found in Practice E2239 . 4.4 Although this practice was primarily developed for multifamily dwellings, this practice may be also applied to nonresidential buildings and related structures by agreement between the client and the individual conducting the clearance examination. 4.5 This practice may be used by owners and property managers, including owner-occupants, and others responsible for maintaining facilities. It may also be used by lead hazard management consultants, construction contractors, labor groups, real estate and financial professionals, insurance organizations, legislators, regulators, and legal professionals. 4.6 This standard does not address whether lead-hazard reduction activities or other building modification or maintenance work were done properly.