1.1 本规范涵盖饰面或未饰面的刚性多孔酚醛隔热材料。木板应该是面的或不面的。从本标准涵盖的块或块上切割的管状模板和木板应无饰面。它不适用于现场膨胀的多孔酚醛材料。 附注1: 如果要在管状模板或板上使用饰面或蒸汽阻滞剂，则参考实践 C921 . 1.2 本规范涵盖的材料用作屋顶隔热材料；用于非承重、建筑材料应用的覆层或刚性板；以及从块或块切割的管道或板绝缘材料，用于在−40至257°F(−40至125°C)之间使用。使用在暖表面上覆盖有适当蒸汽阻滞剂的II型和III型材料，其温度下限为−290°F(−180°C)。（见 7.3 .) 1.3 以英寸-磅单位表示的值应被视为标准值。括号中给出的值是对SI单位的数学转换，仅供参考，不被视为标准。 1.4 本规范涵盖了使用臭氧消耗潜能值为0（ODP 0）的发泡剂制造的闭孔刚性多孔酚醛隔热材料。 1.5 本标准并不旨在解决与其使用相关的所有安全性问题（如果有）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践并确定法规限制的适用性。 有关具体的预防声明，请参见第节 16 . 1.6 本国际标准是根据国际公认的标准化原则制定的世界贸易组织技术性贸易壁垒委员会。

1.1 This specification covers faced or unfaced, rigid cellular phenolic thermal insulation. Boards shall be faced or unfaced. Tubular forms and board cut from a block or bun covered by this standard shall be unfaced. It does not apply to field expanded cellular phenolic materials. Note 1: If a facer or vapor retarder is to be used for the tubular form or board, then refer to Practice C921 . 1.2 Materials covered by this specification are used as roof insulation; sheathing or rigid board for non-load bearing, building material applications; and pipe or board insulation cut from a block or bun for use between −40 and 257°F (−40 and 125°C). Type II and Type III materials with an appropriate vapor retarder covering on the warm surface are used to a lower temperature limit of −290°F (−180°C). (See 7.3 .) 1.3 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. 1.4 This specification covers closed cell rigid cellular phenolic thermal insulation manufactured using blowing agents with an ozone depletion potential of 0 (ODP 0). 1.5 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. For specific precautionary statements, see Section 16 . 1.6 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.