《暖通空调管道施工标准-金属和柔性》第三版主要用于商业和机构管道施工。本标准包含1/2“至10”wg正压和负压管道系统施工的表格和细节。本版在第二版的基础上进行了改进，增加了压力等级表、TDC/TDF结构的单独表和圆形风管结构的扩展表，包括6“wg正压和负压，尺寸高达96”。本版新增工程与设计章节，为设计专业人士提供更多信息，请参阅- 墙体构造详图、新套管构造详图和附加附件。本标准适用于使用无涂层钢、镀锌钢和不锈钢以及有限范围的铝管的施工。本标准已在ICC国际机械规范中采用。包括软指标。

The third edition of the HVAC Duct Construction Standards - Metal and Flexible is intended primarily for commercial and institutional duct construction. The standard contains tables and details for constructing ductwork for 1/2" to 10" wg positive and negative pressures. This edition improves upon the second edition with expanded pressure class tables, separate tables for TDC/TDF construction and expanded tables for round duct construction including 6" wg positive and negative pressure and sizes up to 96". New in this edition is an engineering and design chapter to provide additional information to design professionals, double-wall construction details, new casing construction details and additional accessory items. The standard is applicable for construction using uncoated steel, galvanized and stainless steels and a limited range of aluminum ducts. This standard has been adopted in the ICC International Mechanical Code. Includes soft metrics.