1.1 本规程包括对劣化油漆、表面灰尘、油漆碎片和油漆碎片的存在进行目视评估，并对表面灰尘进行环境采样，以确定在样品采集时、减少铅危害活动或其他建筑维护和改造活动后是否存在铅危害。 1.2 这一做法涉及对独栋独立式住宅（包括外部结构，如围栏）、多户住宅中的单个单元、公共区域或外部场地以及儿童的净空检查- 占用的设施。 1.3 这一做法还涉及可能包括土壤取样的清除检查，例如在进行土壤治理时。 1.4 该规程包括一个程序，用于确定是否满足灰尘和土壤铅清除水平的监管要求，从而确定清除区域是否通过或未通过清除检查。 注1: 这一做法是基于《美国联邦法规》第40卷第745部分中针对减排和第24卷第35部分中针对铅所述的美国“许可”部分- 减少危害以外的减少危害活动。 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。每个系统中规定的值不一定是完全相等的；因此，为了确保符合标准，每个系统应独立使用，并且不得将两个系统的值组合使用。 1.6 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。 1.7 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 对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的清理检查- 对家庭独立式住宅、多户住宅中的单个单元、公共区域或外部场地以及儿童居住设施进行检查，以确定清理区域足够安全，可以重新使用。 4.2 本标准的使用者有责任确保在进行清关检查之前满足所有监管、合同和人员要求。本标准的使用者至少应接受其使用和安全操作方面的培训。 注2: 具有管辖权的当局可能有认证或特定培训要求，或两者兼而有之。 4.3 这一做法是为铅危害管理活动制定的一套标准之一。本规程中要求的视觉评估程序见《规程》 E2255/E2255M 记录保存要求见《实践》 E2239 . 4.4 尽管这一做法主要针对住宅和其他儿童居住设施制定，但经客户和进行清场检查的个人同意，这一做法也可适用于非住宅建筑和相关结构。 4.5 业主和物业管理人员（包括业主占用人）以及负责维护设施的其他人员可以使用此做法。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员、保险组织、立法者、监管机构和法律专业人员也可以使用它。 4.6 本规程不涉及铅危害减少活动或其他建筑改造或维护工作是否正确执行。

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 single-family detached dwellings (including exterior structures, such as fences), individual units in multifamily dwellings, common areas or exterior sites, and child-occupied facilities. 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 for the United States in 40 CFR Part 745 for abatement, and in 24 CFR Part 35 for lead-hazard reduction activities other than abatement. 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 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. 1.7 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 A clearance examination of abatement areas and other areas associated with other lead-hazard control activities, or building maintenance or modification activities in single-family detached dwellings, individual units in multifamily dwellings, common areas or exterior sites, and child-occupied facilities 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. Note 2: Authorities having jurisdiction may have certification or specific training requirements, or both. 4.3 This practice is one of a set of standards developed for lead hazard management activities. The visual assessment procedures required in this practice 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 dwellings and for other child-occupied facilities, 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 practice does not address whether lead-hazard reduction activities or other building modification or maintenance work were performed properly.