E.1 Scope
This appendix contains information to be used in determining the integrity of the rooms and the volumes in respect to maintaining the concentration of the extinguishing substance for the relevant period. It includes details about tests and must be used together with Part 1 of the present regulation.

E.2 Definitions
These definitions are applicable for the integrity of the volumes and for the tests and are additional to those contained in Part i of the NFPA regulation.

Test for the determination of the estimated permanence time. Treatment of protected volumes with minimum permanence times estimated to be less than the recommended value