UL 1738-2010 标准详情
- 标准号:UL 1738-2010
- 中文标题:ⅱ、ⅲ、ⅳ级气体燃烧设备用通风系统
- 英文标题:standard for venting systems for gas-burning appliances, categories ii, iii, and iv
- 标准类别:美国保险商实验室标准UL
- 发布日期:2010-10-04
1.1 THESE REQUIREMENTS COVER VENTING SYSTEMS INTENDED FOR VENTING CATEGORY II, III, OR IV GAS-BURNING APPLIANCES AS DEFINED BY THE STANDARD FOR GAS-FIRED CENTRAL FURNACES (EXCEPT DIRECT-VENT CENTRAL FURNACES), ANSI Z21.47 AND THE NATIONAL FUEL GAS CO
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