1.1本规范涵盖膨胀或剥落蛭石松散填充绝缘的组成和物理特性。本规范还包括确定材料可接受性的测试程序。这些测试程序主要处理与建筑物热围护结构相关的温度范围内的材料性能；然而，这种绝缘的商业可用温度范围为-119至850°F(- 84至454°C）。有关特殊应用，请参阅制造商的说明。 1.2本规范还涵盖了蛭石的成分和特性，蛭石经过表面处理，以产生对液体水分可能是一个因素的装置的拒水性。 1.3当隔热材料、附件和系统的安装或使用可能造成安全或健康问题时，制造商应向用户提供与推荐使用公司产品有关的任何已知问题的适当最新信息，并应建议在安全使用时采取的保护措施。 1.4以下安全隐患警告仅适用于本规范第9节试验方法部分: 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 有关具体的危险说明，请参阅第12节。

1.1 This specification covers the composition and physical properties of expanded or exfoliated vermiculite loose fill insulation. The specification also includes the testing procedures by which the acceptability of the material may be determined. These testing procedures deal primarily with material performance in the temperature range associated with the thermal envelope of buildings; however, the commercially usable temperature range for this insulation is from -119 to 850°F (-84 to 454°C). For specialized applications, refer to manufacturer's instructions. 1.2 The specification also covers the composition and properties of vermiculite that has been surface-treated to produce water repellency for installations where liquid moisture may be a factor. 1.3 When the installation or use of thermal insulation materials, accessories, and systems may pose safety or health problems, the manufacturer shall provide the user with appropriate current information regarding any known problems associated with the recommended use of the company's products, and shall also recommend protective measures to be employed in their safe utilization. 1.4 The following safety hazards caveat pertains only to the test methods portion, Section 9, of this specification: 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 and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 12.