范围1。1本标准适用于常见类型的便携式梯子，包括与设计和性能相关的要求和测试。1.2本标准涵盖的加法器在正常使用条件下一次只能供一人使用，但栈桥梯子除外，栈桥梯子设计为两人同时使用。1.3本标准未规定便携式梯子的构造细节。本标准中列出的要求旨在规定安全使用便携式梯子所需的强度和稳定性的某些最低特性。1.4本标准涵盖单节梯、多节梯- 分段梯、栈桥梯、阶梯梯、阶梯凳、三舱梯、组合梯、平台梯、铰接梯和伸缩梯，但不包括可安装在梯子上或与梯子一起使用的梯子配件（例如，梯子调平器、梯子稳定器或隔离装置、梯子千斤顶或梯子带或挂钩）。注:尽管本标准不包括梯子附件本身，但如果装有附件的梯子符合本标准的要求，则可以对其进行认证（有关梯子附件的具体要求，请参见ANSI/ASC A14.8）。1.5此外，本标准规定了便携式梯子的选择、保养和使用要求。 1.6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。1.7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。

Scope1.1This Standard applies to common types of portable ladders and includes design and performance- related requirements and tests.1.2Ladders covered by this Standard are intended for use by only one person at a time under normal conditions of usage, with the exception of trestle ladders, which are designed for use by two persons at the same time.1.3This Standard does not specify details on the construction of portable ladders. The requirements listed in this Standard are intended to specify certain minimum characteristics of strength and stability deemed necessary for the safe use of portable ladders.1.4This Standard covers single-section ladders, multiple-section ladders, trestle ladders, step ladders, step stools, tri-pod ladders, combination ladders, platform ladders, articulated ladders, and telescoping ladders, but does not cover ladder accessories (e.g., ladder levellers, ladder stabilizers or stand-off devices, ladder jacks, or ladder straps or hooks) that can be installed on, or used in conjunction, with ladders. Note: Although ladder accessories themselves are not covered by this Standard, a ladder containing accessories can be certified if it meets the requirements of this Standard (see ANSI/ASC A14.8 for specific requirements for ladder accessories).1.5In addition, this Standard stipulates requirements for selection, care, and use of portable ladders.1.6The 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.1.7In 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.