1.1 本规范涵盖了通过接触成型制造的用于处理腐蚀性烟雾和工艺气体的管道。特别注意在180°F（82.2°C）以上温度下工作的设备的强度和耐腐蚀性。 1.2 结构材料应为“玻璃纤维”，由聚酯、乙烯基酯或其他符合规范要求的合格树脂基体系统组成，具有纤维增强 C582型 . 1.3 本规范不涵盖特定化学环境下树脂和增强材料的选择。 1.4 本规范涵盖设计压力高达±5 psig（34.5 Pa）的管道。 1.5 以英寸-磅为单位的数值应视为标准值。 括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.6 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。 注1: 没有已知的ISO等效于本标准。 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》中确立的国际公认标准化原则制定的。

1.1 This specification covers ducts fabricated by contact molding intended for use in handling corrosive fumes and process gases. Special attention is given to equipment that operates at temperatures over 180°F (82.2°C) with regard to strength and corrosion resistance. 1.2 The material of construction shall be “fiberglass” consisting of a polyester, vinyl ester, or other qualified resin-matrix systems with fiber reinforcement in accordance with Specification C582 . 1.3 This specification is not intended to cover selection of resins and reinforcements for specific chemical environments. 1.4 This specification covers ducts up to a design pressure of ±5 psig (34.5 Pa). 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 and health practices and determine the applicability of regulatory limitations prior to use. Note 1: There is no known ISO equivalent to this standard. 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.