April 2, 2008
      
                  
        
  Author(s)
  Nathan D. Marsh,   Thomas G. Cleary
 
       
            
    
    
        As part of an effort to develop standard test methods for the performance of commercial hydrogen sensors, we employed the Fire Emulator / Detector Evaluator, an instrumented flow system designed to study the response of fire detectors (smoke, heat, gas)