UL 1971 BULLETINS-2002 标准详情
- 标准号:UL 1971 BULLETINS-2002
- 中文标题:2002年6月7日( 14P )
- 英文标题:06/07/2002 (14p)
- 标准类别:美国保险商实验室UL
- 发布日期:2002
These requirements cover emergency-signaling devices for the hearing impaired. The evices and/or systems covered by this standard are suitable for use in a controlled environment, or in an uncontrolled environment as indicated in the product marking.
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