1.1 本规范涵盖了用于在0°F（-18°C）至1200°F（649°C）温度下工作的表面上用作隔热材料的矿物纤维（岩石、矿渣或玻璃）毯的分类、成分、物理性质和尺寸。对于特定应用，实际温度限制应由供应商和买方商定。 1.2 毯内纤维的取向主要平行于主表面(面)。本规范不包括预制管道和储罐包裹绝缘材料，其中绝缘材料已被切割和制造以提供垂直于表面（面）的纤维取向。 1.3 为了获得令人满意的性能，必须在低于环境温度的应用中使用正确安装的保护性蒸汽缓凝器，以减少水蒸气穿过或绕过隔热层向较冷表面的移动。不使用蒸汽缓凝剂会导致绝缘和系统损坏。参考实践 C755 供选择水蒸气缓凝剂时考虑和指导 C1423 有关选择护套材料的具体指导。尽管蒸汽阻滞剂不是本规范的一部分，但规范中要求的性能 C1136 与应用或性能相关。 1.4 本标准并不旨在提供小时额定消防系统的性能要求。向制造商咨询适当的系统。 1.5 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。 1.6 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。 1.7 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》中确立的国际公认的标准化原则制定的。

1.1 This specification covers the classification, composition, physical properties, and dimensions of mineral fiber (rock, slag, or glass) blanket intended for use as thermal insulation on surfaces operating at temperatures between 0°F (–18°C) and 1200°F (649°C). For specific applications, the actual temperature limits shall be agreed upon between the supplier and the purchaser. 1.2 The orientation of the fibers within the blanket is primarily parallel to the principal surface (face). This specification does not cover fabricated pipe and tank wrap insulation where the insulation has been cut and fabricated to provide a fiber orientation that is perpendicular to the surface (face). 1.3 For satisfactory performance, properly installed protective vapor retarders must be used in below ambient temperature applications to reduce movement of water vapor through or around the insulation towards the colder surface. Failure to use a vapor retarder can lead to insulation and system damage. Refer to Practice C755 for considerations in the selection of water vapor retarders and to Guide C1423 for specific guidance in selecting jacketing materials. Although vapor retarders are not part of this specification, properties required in Specification C1136 are pertinent to application or performance. 1.4 This standard does not purport to provide the performance requirements of hourly-rated fire systems. Consult the manufacturer for the appropriate system. 1.5 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. 1.6 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. 1.7 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.