序言这是CSA S269的第三版。2、用于施工的通道脚手架。它取代了1987年和1980年出版的前两个版本。自本标准上次修订于1987年以来，CSA Z797《通道脚手架操作规程》作为脚手架的性能标准而制定。因此，本标准的新版侧重于设计、制造和测试。范围1。1本标准为脚手架设备、材料和组件的设计、制造和测试提供了指导和要求，脚手架用于在建筑和其他结构的施工、改造、维修或拆除过程中为工人和材料提供工作平台。 本标准还包括脚手架组件的有限指南。注:此外，对于a）暴露于异常环境或特征的异常脚手架类型，可能需要补充规则或要求；或b）使用本标准未涵盖的材料或程序。1.2本标准不适用于a）悬挂式脚手架或摇摆台；b） 卡车或车载平台；c） 脚手架；d） 支撑；e） 自升式工作平台，包括桅杆攀爬器、手动升降攀爬器和泵千斤顶；或f）CSA Z797涵盖的特定现场应用。 1.3在本标准中，“应”用于表示要求，即用户为遵守本标准而有义务满足的规定；“应该”用于表示建议或建议但不需要的建议；“可”用于表示一个选项或在标准范围内允许的选项。注释随附条款不包括要求或替代要求；随附条款的注释的目的是将解释性或信息性材料与文本分开。表和图的注释被视为表或图的一部分，可以作为要求编写。 附件被指定为规范性（强制性）或信息性（非强制性）以定义其应用。1.4国际单位制给出的数值为本标准中的记录单位。括号中给出的值仅供参考和比较。

PrefaceThis is the third edition of CSA S269.2, Access scaffolding for construction purposes. It supersedes the previous editions published in 1987 and 1980. Since this Standard was last revised in 1987, CSA Z797 Code of practice for access scaffold was created as a performance standard for scaffolding. As a result, this new edition of this Standard focuses on design, fabrication, and testing.Scope1.1 This Standard provides guidance and requirements for the design, fabrication, and testing of scaffolding equipment, materials, and components where scaffolds are erected to provide working platforms for workers and materials during the construction, alteration, repair, or demolition of buildings and other structures. This Standard also includes limited guidance on scaffolding assemblies. Note: In addition, supplementary rules or requirements might be necessary for unusual scaffold types that a) are exposed to unusual environments or features; or b) employ materials or procedures not covered in this Standard. 1.2 This Standard does not apply to a) suspended scaffolds, or swing stages; b) truck or vehicle mounted platforms; c) falsework; d) shoring; e) self-elevating work platforms including mast climbers, manual elevating climbers, and pump jacks; or f) specific site applications as covered by CSA Z797. 1.3 In this Standard, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; "should" is used to express a recommendation or that which is advised but not required; and "may" is used to express an option or that which is permissible within the limits of the Standard. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application. 1.4 The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only.