A room integrity test helps to identify the air leakage rate and also its ability to hold fire suppressant gasses in an enclosed room. Room integrity testing is a means of predicting the retention time and leakiness of a room without having to release the extinguishing gas itself.
Room integrity tests helps to calculate the air tightness and amount of air leakage in a room from the difference in pressure when tested. Integrity tests also predict how long fire suppressant agents take to descend to a given level in the room. A retention time of 10 minutes is the normal minimum period the suppressant agents are required to be retained for.
British & International Standards include (but are not limited to) the following:
BSI ISO 14520 – 1:2015 - Gaseous fire-extinguishing systems. Physical properties and system design.
NFPA 2001 – Standard on clean agent fire extinguisher systems
BS 5306 -9:2015 - Fire extinguishing installations and equipment on premises. Recharging of portable fire extinguishers