1.1 本指南涵盖了管道或片材形式的柔性封闭式预制隔热层的推荐安装技术。本指南适用于根据规范制造的材料 C534 （弹性体绝缘）或规范 C1427 （聚烯烃基绝缘）。本指南中涵盖的材料包括上述材料规范中规定的-297至300°F（-183至150°C）的使用温度。所提出的许多建议仅针对低于环境的应用。 1.2 本指南旨在优化已安装的闭孔柔性绝缘系统的热性能和使用寿命。通过遵循本指南，业主和设计师可以在规定的设计条件下实现预期的节能和防止冷凝。 本文件仅限于安装程序，不包括系统设计。 1.3 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。 1.4 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。 1.5 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 本指南适用于根据规范制造的柔性闭孔绝缘管材和片材 C534 和 C1427 本标准旨在为安装这些类型的材料提供基本指南。 5.2 除非与制造商另有约定，否则应确认应用使用温度与ASTM规范中规定的材料使用温度一致。本指南中提到的每种绝缘类型都有不同的等级，安装的材料和等级应符合规定。 5.3 本指南并非旨在涵盖与所有应用安装相关的所有方面，请参阅国家商业工业绝缘标准（MICA手册）或特定产品制造商的建议，或两者兼而有之。 参见ASHRAE手册（基础——第23章）和ASHRAE指南（制冷——第10章）。

1.1 This guide covers recommended installation techniques for flexible closed cell pre-formed insulation in tube or sheet form. This guide is applicable to materials manufactured in accordance with Specification C534 (Elastomeric based insulation) or Specification C1427 (polyolefin based insulation). The materials covered in this guide encompass a service temperature of –297 to 300°F (–183 to 150°C) as indicated in the material specifications referenced above. Many of the recommendations made are specific to below ambient applications only. 1.2 The purpose of this guide is to optimize the thermal performance and longevity of installed closed cell flexible insulation systems. By following this guide, the owner, and designer can expect to achieve the energy savings expected and prevention of condensation under the specified design conditions. This document is limited to installation procedures and does not encompass system design. 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 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. 1.5 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 This guide applies to flexible closed cell insulation tubing and sheet materials manufactured according to Specifications C534 and C1427 . This standard is intended to provide a basic guide for installing these types of materials. 5.2 Confirm application use temperature is consistent with specified use temperature for material as defined in ASTM Specifications unless otherwise agreed upon with the manufacturer. There are different grades for each of the insulation types referred to in this guide, material and grade installed should be that specified. 5.3 This guide is not intended to cover all aspects associated with installation for all applications, consult the National, Commercial Industrial Insulation Standards (MICA Manual) or the specific product manufacturer for recommendations, or both. See ASHRAE Handbook (Fundamentals – Chapter 23) and ASHRAE Handbook (Refrigeration – Chapter 10).