1.1 本规程涵盖了OSB结构用面板设计能力的代码识别基础。提供了确定或重新评估OSB结构使用面板在平面和轴向应用中的设计能力的程序。边缘应用中OSB结构使用面板（如边缘板）的设计能力不在本标准范围内。还提供了采样和测试程序。以单位尺寸容量表示的设计值应视为标准值。根据本实施规程开发的设计能力适用于拟用于干燥环境的面板- 使用条件。 注1: 本规程基于ICC-ES验收标准AC-182。相对于AC-182的范围，该实践仅限于OSB面板。 注2: 虽然本规程参考了PS 2，但本规程同样适用于根据CAN/CSA O325等其他标准认证的产品。 注3: 根据PS 2生产的OSB采用“风险敞口1”债券分类。PS 2覆盖的暴露1面板用于干燥应用，其中在用平衡含水量条件预计低于16 %. 暴露1面板旨在抵抗因施工延误或其他类似严重情况而产生的湿气影响。OSB的使用指南可从制造商和合格机构获得。 注4: PS 2-10将标称厚度的使用替换为一个称为性能类别的分类术语，在PS 2中定义为“与面板厚度范围相关的面板名称，该面板名称与国际建筑规范（IBC）和国际住宅规范（IRC）中使用的标称面板厚度名称相关联”。 因此，PS 2性能类别应视为等同于本标准中使用的术语“标称厚度”。 1.2 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.3 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 本规程中描述的程序旨在根据OSB的测试确定设计能力（强度和刚度）值，该值至少满足PS 2的相关性能要求。 4.2 应定期审查和重新评估本规程得出的数值。如果发现重大变化，则应考虑根据本规程的程序进行重新测试或重新评估，或两者兼而有之。

1.1 This practice covers the basis for code recognition of design capacities for OSB structural-use panels. Procedures are provided to establish or re-evaluate design capacities for OSB structural-use panels in flatwise and axial applications. Design capacities for OSB structural-use panels in edgewise applications, such as rim board, are outside the scope of this standard. Procedures for sampling and testing are also provided. Design values stated as capacity per unit dimension are to be regarded as standard. Design capacities developed in accordance with this practice are applicable to panels intended for use in dry in-service conditions. Note 1: This practice is based on ICC-ES Acceptance Criteria AC-182. Relative to the scope of AC-182, this practice is limited to OSB panels. Note 2: While this practice makes reference to PS 2, this practice applies similarly to products certified to other standards such as CAN/CSA O325. Note 3: OSB produced under PS 2 is rated with the “Exposure 1” bond classification. Exposure 1 panels covered by PS 2 are intended for dry use applications where the in-service equilibrium moisture content conditions are expected to be less than 16 %. Exposure 1 panels are intended to resist the effects of moisture due to construction delays, or other conditions of similar severity. Guidelines on use of OSB are available from manufacturers and qualified agencies. Note 4: PS 2-10 replaced the use of nominal thicknesses with a classification term known as Performance Category, which is defined in PS 2 as “A panel designation related to the panel thickness range that is linked to the nominal panel thickness designations used in the International Building Code (IBC) and International Residential Code (IRC).” Therefore, the PS 2 Performance Category should be considered equivalent to the term “nominal thickness” used within this standard. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.3 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 procedures described in this practice are intended to be used to establish design capacity (both strength and stiffness) values based on testing of OSB that, at a minimum, satisfies the relevant performance requirements of PS 2. 4.2 Review and reassessment of values derived from this practice shall be conducted on a periodic basis. If a change is found to be significant, retesting or reevaluation, or both, in accordance with the procedures of this practice shall be considered.