FM 4121 : 2013
Current
Current
The latest, up-to-date edition.
FIRE AND SMOKE DOOR HOLDER AND/OR RELEASE DEVICES
Published date
01-14-2014
Publisher
1 INTRODUCTION
2 GENERAL INFORMATION
3 GENERAL REQUIREMENTS
4 PERFORMANCE REQUIREMENTS
5 OPERATIONS REQUIREMENTS
APPENDIX A - Units of Measurement
APPENDIX B - FM APPROVALS
CERTIFICATIOIN MARKS
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