1.1 本规范涵盖了中所述的石膏板 1.1.1 – 1.1.9 . 注1: 规格 C840 , C841 , C844 和 C1280 包含石膏板的应用程序。 1.1.1 石膏墙板， 设计用于墙壁、天花板或隔墙，并提供适合装饰的表面。 1.1.2 预装修石膏板， 设计用作墙壁、天花板或隔墙的成品表面。 1.1.3 石膏背板、芯板和轴衬板， 设计用作多层系统中的基座或半固体或固体石膏板隔墙中的石膏柱或芯，或用于井壁组件。 注2: 背板、芯板和轴衬板这三个术语指的是不同的最终用途。 除非另有说明，否则本规范中使用的术语石膏背板应包括石膏芯板和石膏轴衬板。 1.1.4 防水石膏板， 主要设计用作在墙壁或天花板上应用陶瓷或塑料瓷砖的基底（背衬）；这种产品也适合作为装饰的基础。 1.1.5 外部石膏底板， 设计用于完全防止与液态水接触的外部拱腹和车棚天花板。 1.1.6 石膏护板， 设计用作建筑物的护套。 1.1.7 单板抹灰用石膏基层， 设计用作石膏贴面抹灰的基础。 1.1.8 石膏板条， 设计用作石膏灰泥应用的基础。 1.1.9 石膏天花板， 设计用于内部天花板，框架中心间距不超过24英寸[610毫米]，表面适合接受水性纹理和其他装饰。该产品也适用于内墙。 1.2 适用于所有石膏板的规范见第节 1 – 4. 和 13 – 15 适用于特定石膏板的规范见以下章节: 第节 石膏墙板和预装饰石膏板 5. 石膏背板、石膏芯板， 石膏轴线板 6. 防水石膏板 7. 室外石膏底板 8. 石膏护板 9 单板抹灰用石膏基 10 石膏板条 11 石膏天花板 12 1.3 以国际单位制或英寸-磅单位表示的值应单独视为标准值。在文本中，国际单位制显示在括号中。每个系统中所述的值可能不是完全等效的；因此，每个系统都应独立使用。将两个系统的值结合起来可能会导致不符合标准。 1.4 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。

1.1 This specification covers the gypsum boards described in 1.1.1 – 1.1.9 . Note 1: Specifications C840 , C841 , C844 and C1280 contain application procedures for gypsum board. 1.1.1 Gypsum wallboard, designed for use on walls, ceilings, or partitions and that affords a surface suitable to receive decoration. 1.1.2 Predecorated gypsum board, designed for use as the finished surfacing for walls, ceilings, or partitions. 1.1.3 Gypsum backing board, coreboard, and shaftliner board, designed for use as a base in multilayer systems or as a gypsum stud or core in semisolid or solid gypsum board partitions, or in shaft wall assemblies. Note 2: The terms backing board, coreboard, and shaftliner board refer to different end uses. The term gypsum backing board, as used in this specification, shall include gypsum coreboard and gypsum shaftliner board unless otherwise stated. 1.1.4 Water-resistant gypsum board, designed primarily to be used as a base (backing) for the application of ceramic or plastic tile on walls or ceilings; this product is also suitable as a base for decoration. 1.1.5 Exterior gypsum soffit board, designed for use on exterior soffits and carport ceilings that are completely protected from contact with liquid water. 1.1.6 Gypsum sheathing board, designed for use as sheathing on buildings. 1.1.7 Gypsum base for veneer plaster, designed for use as a base for the application of gypsum veneer plaster. 1.1.8 Gypsum lath, designed for use as a base for the application of gypsum plaster. 1.1.9 Gypsum ceiling board, designed for use on interior ceilings with framing spaced not more than 24 in. [610 mm] on center and that affords a surface suitable to receive water-based texture and other decoration. This product is also suitable for use on interior walls. 1.2 Specifications applicable to all gypsum boards are located in Section 1 – 4 and 13 – 15 . Specifications applicable to specific gypsum boards are located in the following sections: Section Gypsum Wallboard and Predecorated Gypsum Board 5 Gypsum Backing Board, Gypsum Coreboard, Gypsum Shaftliner Board 6 Water-Resistant Gypsum Board 7 Exterior Gypsum Soffit Board 8 Gypsum Sheathing Board 9 Gypsum Base for Veneer Plaster 10 Gypsum Lath 11 Gypsum Ceiling Board 12 1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 1.4 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.