91.140.20 标准查询与下载
共找到 65 条与 相关的标准，共 5 页
Covers the construction and performance of direct gas-fired non-recirculating make-up air heaters intended for use with natural, propane and propane-air gases
Direct Gas-Fired Non-Recirculating Make-Up Air Heaters
- ICS
- 91.140.20
- CCS
- 发布
- 1976-05-01
- 实施
Performance standard for electric baseboard heaters in residential homes
- ICS
- 91.140.20
- CCS
- 发布
- 1975-04-01
- 实施
