UL-991 › Historical Revision Information
Standard for Tests for Safety-Related Controls Employing Solid-State Devices

UL-991 - 1989 EDITION - SUPERSEDED
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Standard for Tests for Safety-Related Controls Employing Solid-State Devices


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Document Number

UL-991

Revision Level

1989 EDITION

Status

Superseded

Publication Date

Jan. 27, 1989

Page Count

38 pages