I am inquiring if there is any standard development regarding detection of ammonia ( ice rinks) chlorine ( swimming pools) and carbon monoxide (not in residential). Normally pools and arenas have a substantial occupant load and detection and notification seems to be only localized to the service room or plant space. Regulating and including audible and visual alarms to the building through the fire alarm and or outside the building would be helpful. An alarm outside the building could prevent plant personnel from entering a hazardous space if a leak has occurred. Having a requirement for a fire safety plan for any occupancy with either of these hazards seems prudent. Recent arena incidents probe the need for advanced notification to prevent injuries.