Cylinders shall not be kept in unventilated enclosures such as lockers and cupboards. Special buildings rooms or compartments shall. 1926 350 a 12 1926 350 a 12 the in plant handling storage and utilization of all compressed gases in cylinders portable tanks rail tankcars or motor vehicle cargo tanks shall be in accordance with compressed gas association pamphlet p 1 1965. 
				
			
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