JOHNS, C K <br/><br/>
A method for assessing the sanitizing efficiency of quaternary ammonium and hypochlorite products.  [electronic resource] 

 -  American journal of public health and the nation's health  Oct 1947 
 - 1322-7 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0002-9572 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ammonium Compounds<br/>Hypochlorous Acid