Hughes, E E <br/><br/>
Development of standard reference materials for air quality measurement.  [electronic resource] 

 -  ISA transactions  1975 
 - 281-91 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0019-0578 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air Pollutants--analysis<br/>Carbon Monoxide--analysis<br/>Gases<br/>Nitric Oxide--analysis<br/>Nitrogen--analysis<br/>Nitrogen Dioxide--analysis<br/>Sulfur Dioxide--analysis