SECTION 310:320-5-3. Signs for storage of pool chemicals

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Suggested signs to be used to indicate presence of pool chemicals
(1) U.S. Department of Transportation sign - 4′ square
(2) National Firefighters Prevention Assn (NFPA) #704-1975, Standard System for the Identification of the Fire Hazards of Materials, adopted as follows for Pool Water Treatment Chemicals. − 12″ square
4 is the highest number on this scale (0 - 4 scale)

                    
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