Compliance with NFPA 2001 (2008 ED.) requires:

• 7.4 The enclosure protected by the clean agent shall be thoroughly inspected at least every 12 months to determine if penetrations or other changes have occurred that could adversely affect agent leakage or change volume of hazard, or both. Where the inspection indicates conditions that could result in the inability to maintain the clean agent concentration, the conditions shall be corrected.

• 7.2.3 Where external visual inspection indicates the container has been damaged, additional strength tests shall be required.

• 7.6.1 All persons who could be expected to inspect, test, maintain, or operate fire systems shall be thoroughly trained…

• 7.7.2.3 All total flooding systems shall have the enclosure examined and tested to locate and effectively seal any significant air leaks that could result in a failure of the enclosure to hold the specified agent concentration level for the specified holding period. The current preferred method is using a blower door fan unit and smoke pencil.

• “Experience has shown that the primary cause of discharge test failure is the inability to hold the specified concentration for the entire holding period. “