1.1本规范涵盖了通过气动或浇注应用在环境温度在-45至90°C（-49至194°F）范围内的阁楼或住房封闭空间以及其他框架建筑中使用的化学处理、回收纤维素纤维松散填充型隔热材料的组成和物理要求。虽然符合本规范的产品用于各种结构，但它们主要适用于（但不限于）木托梁、椽和螺柱结构。 1.2以国际单位制表示的数值应视为标准。括号中的值仅供参考。 1.3 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。

1.1 This specification covers the composition and physical requirements of chemically treated, recycled cellulosic fiber loose-fill type thermal insulation for use in attics or enclosed spaces in housing, and other framed buildings within the ambient temperature range from -45 to 90°C (-49 to 194°F) by pneumatic or pouring application. While products that comply with this specification are used in various constructions, they are adaptable primarily, but not exclusively, to wood joist, rafters, and stud construction. 1.2 The values stated in SI units are to be regarded as the standard. The values in parentheses are provided for information only. 1.3 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.