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Standard 555, Edition 7

Standard for Fire Dampers

UL CSDS Proposal
Standard 555, Edition 7 Edition Date: June 27, 2008
Summary of Topics b0555_7_20080627_sum.html

Subject 555

Bulletin Dated: June 27, 2008

SUMMARY OF TOPICS

The following changes in requirements are being proposed:

1. Addition of Test Procedure for Fire Dampers Installed Outside the Fire Wall Plane

2. Addition of Multiple Section Rapid Closure Dynamic Damper Testing

3. Revision of Cycling Test

Back to Standard 555, Edition 7

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