R 408.10946 Inspection.

Rule 946. (1) A carbon dioxide extinguishing system shall be inspected by a trained and authorized employee or outside service: (a) Not less than annually to insure operability. (b) Not less than semiannually to insure that all high pressure cylinders are at the designed weight. A cylinder showing a net loss in weight of more than 10% shall be refilled or replaced. (c) Not less than annually to check the accuracy of low pressure system liquid level gauges. (d) If a container shows a loss of more than 10%, it shall be refilled, unless the minimum gas requirements are still provided. (2) A tag shall be affixed indicating the date of inspection. DRY CHEMICAL SYSTEMS