Velichkova, V <br/><br/>
[Factors affecting the quality of indicator tubules for determining harmful gases and fumes in the air of a work environment].  [electronic resource] 

 -  Problemi na khigienata  1981 
 - 81-7 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0323-9179 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air Pollutants--analysis<br/>Air Pollutants, Occupational--analysis<br/>Gases--analysis<br/>Indicators and Reagents--pharmacology<br/>Quality Control