ANSI/UL 448-2011 标准详情
- 标准号:ANSI/UL 448-2011
- 中文标题:消防设备用离心静止泵的安全性标准
- 英文标题:Standard for Safety for Centrifugal Stationary Pumps for Fire-Protection Service
- 标准类别:美国国家ANSI
- 发布日期:2011
The following changes in requirements to the Standard for Centrifugal Stationary Pumps for Fire-Protection Service, UL 448, are being proposed: 1. Minimum dimensional requirements for the pump drain and passages through the impeller. 2. Clarification
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