1.1 本指南为制造商提供了有关松散填充隔热产品覆盖率图表的开发信息。本指南仅限于根据通过产品测试获得的密度与厚度、表观热导率与密度以及厚度与面积-质量的关系来开发覆盖图。 1.2 本指南适用于各种松散填充隔热产品，包括矿物纤维（规范 C764 )，或纤维素纤维（规范 C739 )材料；颗粒类型，包括蛭石（规范 C516 )和珍珠岩（规范 C549 ); 造粒产品；以及气动安装或浇注到位的任何其他绝缘材料。 1.3 根据美国联邦贸易委员会《联邦法规汇编》第16卷第460部分的规定，松散填充绝缘产品的覆盖范围图是必需的。除本指南中的要求外，其他国家或地方管理机构可能还有覆盖范围图要求，或与本指南中提出的要求不同；有关示例，请参见附录。 1.4 以英寸磅为单位的数值应视为标准。括号中给出的值是国际单位制的数学转换，仅供参考，不被视为标准。 1.5 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.6 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。 ====意义和用途====== 5.1 覆盖率图表列出了所需的安装和产品在役参数，包括最小厚度、每个包装的最大净覆盖率和单位面积的最小质量，以达到所列的每个热性能（R值）水平。图表信息对应于代表常见建筑规范、行业标准或立法要求的许多标准R值级别（请参阅中的示例 附录X1 )因此可能需要额外的图表列，即每1000个包的数量 英尺 2. （100米 2. )，以及初始安装厚度。 5.2 本指南适用于开放式水平阁楼地板空间安装的覆盖率图表。图表最大净覆盖范围基于净占地面积；扣除框架面积。倾斜的天花板、暖通空调设备和管道系统以及其他因素会显著影响产品覆盖范围，制造商应予以考虑。

1.1 This guide provides information to manufacturers for the development of a loose-fill thermal insulation product coverage chart. This guide is limited to developing a coverage chart from density versus thickness, apparent thermal conductivity versus density, and thickness versus area mass relationships obtained through product testing. 1.2 This guide applies to a wide variety of loose-fill thermal insulation products including mineral fiber (Specification C764 ), or cellulosic fiber (Specification C739 ) materials; granular types including vermiculite (Specification C516 ) and perlite (Specification C549 ); pelletized products; and any other insulation materials that are installed pneumatically or poured in place. 1.3 Coverage charts for loose-fill insulation products are required by regulation under the United States Federal Trade Commission’s 16 CFR Part 460. Other countries or local governing agencies may have coverage chart requirements in addition to, or that differ from, those presented in this guide; see the Appendix for examples. 1.4 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. 1.5 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. 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. ====== Significance And Use ====== 5.1 Coverage charts list the required installed and product in-service parameters of minimum thickness, maximum net coverage per package, and minimum mass per unit area to achieve each listed thermal performance (R-value) level. Chart information corresponds to numerous standard R-value levels representing common building codes, industry standards, or legislated requirements (see example in the Appendix X1 ) and therefore additional chart columns may be required, that is, number of packages per 1 000 ft 2 (100m 2 ), and initial installed thickness. 5.2 This guide applies to coverage charts for installations in open, horizontal attic floor spaces. Chart maximum net coverages are based upon net floor area; framing area deducted. Sloped ceilings, HVAC equipment and ductwork, and other factors can significantly influence product coverage and are to be considered by the manufacturer.