To state whether a certain valve meets NFPA 85 criteria.  While we are busy ordering the standard, does anybody here know what the requirement would be for a 10" butterfly valve? 
sk the client about the criteria for which application.
The BOILER AND COMBUSTION SYSTEMS HAZARDS CODE mentions valves including dampers, scavanging, fuel / burner safety shutoff valves, barrier valves, charging valves, checks, dusttight valve in pulverized fuel, flow control, supervisory shutoff valves, vent control and vant valves.
Most topics apply with the installation, application arrangement, logic, etc. - not the valve design features.  Requirements address automated proof of closure features such as open/closed position feedback contacts,

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